bs 5837 arboricultural survey, tree constraints plan ......bs5837 2012: trees in relation to design,...

BS 5837

Arboricultural Survey, Tree Constraints Plan

Larches House, Preston

For and on behalf of:

Lancashire County Council

April 2019

Surveyor Author Checked

B Knipe B Knipe A Whitworth

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April 2019 1 LSF/366-23/BK

Contents Page

1. Introduction 2 2. The Brief and Requirements 2 3. The Report 2 4. Scope and Report Limitations 2 5. Documents Provided 2 6. The Site 3 7. Legal Restrictions 3 8. Survey 3 9. Arboricultural Recommendations 6 10. Summary 7

Appendices Appendix 1 Tree Survey Data Table Appendix 2 Glossary of Arboricultural Terms Appendix 3 Surveyor Qualifications Appendix 4 Legal Restrictions Appendix 5 Survey Methodology Drawing 01 Tree Constraints Plan (D01-F366-23)

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April 2019 2 LSF/366-23/BK

1. Introduction 1.1 Lowther Forestry Group Ltd (LFG) has been commissioned by Lancashire County Council to produce an Arboricultural Survey and Tree Constraints Plan following guidance from BS 5837 2012: Trees in Relation to Design, Demolition and Construction - Recommendations. The report is to aid the future planning and management of the site. 2. The Brief and Requirements 2.1 A plan to a scale and level of accuracy appropriate to the proposal that shows the position, Crown Spread and Root Protection Area (RPA) of every tree, hedge and group in the survey area. 2.2 Where necessary, make preliminary arboricultural recommendations for all the trees, hedges and groups in 2.1 above, specifying remedial or preventative work; whether for physiological, hazard abatement, aesthetic or operational reasons. All works shall be carried out in accordance with BS 3998 2010: Recommendations for Tree Work. 3. The Report 3.1 The report aims to give a balanced judgement of the trees, hedges and groups, their current condition, and where necessary any future management. 3.2 The report will clearly identify the tree, hedge and group locations, their crown spreads and the extent of their Root Protection Areas (RPA). 4. Scope and Report Limitations 4.1 This is not a tree safety survey and therefore does not evaluate trees with regard to their likelihood to cause death or bodily injury to any person or damage to property. Any clear and identifiable hazards are highlighted with recommendations. There may, however, be hidden defects or defects which are not identified due to weather conditions or foliage for which Lowther Forestry Group Ltd cannot be held responsible. The survey produces a picture of those trees surveyed as on the date when the survey was undertaken. It is quite possible for hazards to have developed since that time. 4.2 This report confines itself to the silvicultural and arboricultural aspects of the trees and does not address any ecological or engineering aspects or anything in relation to soils for which other specialists advice may be sought. 5. Documents Provided 5.1 A topographical survey (09977_001) in DWG format was provided prior to the survey.

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April 2019 3 LSF/366-23/BK

6. The Site 6.1 The site is Larches House, Ashton-on-Ribble, Preston, PR2 1QE. 6.2 The survey area includes trees that are within the site boundary for the former school. Trees in the survey include mainly mature broadleaf trees with scattered conifer species to be found across the whole site. 6.3 Land use surrounding the survey area includes residential dwellings with associated gardens, a minor highway and a shelter belt woodland. 7. Legal Restrictions 7.1 Trees in any location may be protected by legislation. Where development is proposed, additional legal protection may be appropriate and can be enforced by the local authority. Attention is drawn to legal controls and liabilities under common law for consideration at the earliest stages of potential site development. 7.2 A check on the Preston City Council Interactive Map (30 April 2019) indicated that there are no Tree Preservation Orders or Conservation Areas protecting this site. 7.3. Substantial penalties and/or prison sentences can be incurred for contravention of legislation relating to protected species. 7.4 Lowther Forestry Group Ltd has not been requested to make any checks for protected species on this site. 7.5 Further legal considerations can be found in Appendix 4, Legal Restrictions. 8. Survey 8.1 The survey was carried out in accordance with BS5837 2012: Trees in Relation to Design, Demolition and Construction - Recommendations. A glossary of arboricultural terms used in this report can be found in Appendix 2. 8.2 The surveyor was Ben Knipe, Contracts Supervisor, Lowther Forestry Group Ltd. Surveyor qualifications can be found in Appendix 3. 8.3 The trees have been categorised in accordance with the cascade chart in Table 1 of BS5837 2012: Trees in Relation to Design, Demolition and Construction - Recommendations, page 9. The survey methodology can be seen in Appendix 5. 8.4 The survey identified and recorded 33 trees, 17 groups and 1 hedge requiring consideration prior to design or development of the site.

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April 2019 4 LSF/366-23/BK

8.4.1 The trees have been divided into the following four categories and are as follows:

Category A = 6 trees, 1 group

Category B = 18 trees, 5 groups

Category C = 9 trees, 11 groups, 1 hedge

Category U = 0 trees 8.4.2 Table 1, Tree Quality Assessment Table shows the trees on site categorised following guidance from BS5837 2012: Trees in Relation to Design, Demolition and Construction - Recommendations.

Tree Quality Assessment Table

Category 1: Mainly Arboricultural

Values 2: Mainly Landscape

Values

3: Mainly Cultural Values, Including

Conservation

A 1823, 1829, 1836, 1842,

1846, 1847, G17

B

1821, 1822, 1828, 1830, 1832, 1833, 1835, 1837, 1840, 1841, 1843, 1844, 1845, 1848, 1849, 1850,

1852, G10

1851, G8, G11, G14, G15

C 1824, 1825, 1826, 1831,

1834, 1838, 1839

1827, 1853, G1, G2a/b, G3, G4, G5a/b, G6, G7,

G9, G12, G13, G16, H1a/b/c/d

U

A, B, C and U indicate the contribution in years the particular tree will potentially live for. 40+ years = A, 20 to 40 years = B, 10 to 20 years = C, less than 10 years = U

8.5 Category A trees are those of high quality and value with an estimated remaining life expectancy of at least 40 years. There are six Category A trees and one group in the survey area. 8.5.1 The Category A trees are to be found around the site and include Oak, Sycamore, Ash, Beech and Black Pine. These are all healthy open-grown trees with generally good form and are the principle trees in the site. Tree 1836 (Ash) is a third party tree located in a private garden near the southwest corner of the site. 8.5.2 Group 17 is located outside of the western boundary of the site and is dominated by a tall, open-grown Oak tree. The large crown of this tree overhangs the site boundary, and that of an adjacent Lime tree that is within the former school site. The stem of the large Oak tree is in line with the perimeter security fence, necessitating the fence to skirt around the base of the tree to avoid damage. It is recommended that ownership of this

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April 2019 5 LSF/366-23/BK

Oak tree is confirmed before any planning of the site, to establish if it is property of Larches House. 8.6 The Category B trees are those of moderate quality and value with an estimated remaining life expectancy of at least 20 years. There are eighteen trees and five groups recorded as Category B in the survey area. 8.6.1 The Category B trees can be found across the whole site, and the Category B groups are predominantly on the east side of the site, forming an informal avenue along the entrance road and footpath. These are mostly mature trees including Oak, Horse Chestnut, English Yew, Sycamore, Common Lime, Ash, Beech and Holly. 8.6.2 These Category B trees and groups are healthy with only minor structural defects such as deadwood, historic tear-out wounds, acute branch unions, suppression and leaning stems. These trees and groups are contributing to the arborial landscape character of the site, however future thinning of the groups can take place to benefit the retained trees. 8.7 The Category C trees are those trees of low quality and value with an estimated remaining life expectancy of at least 10 years, or young trees with a stem diameter below 150mm. There are nine trees, eleven groups and one hedge recorded as Category C in the survey area. 8.7.1 The Category C trees and groups are located across the whole site and include mixed broadleaf and conifer species. These are semi-mature and mature trees that have reduced health or structural defects which are unlikely to be remedied by arboricultural operations. Trees in this category are still contributing to the arborial character of the site, however thinning is recommended for future management to remove those in poor health, and to favour the surrounding trees in higher quality categories which are being crowded. 8.7.2 Hedge 1 is located near the northwest corner of the site, between buildings that were used as part of the former school. This is a healthy Privet hedge found in four sections that has become unmanaged. 8.8 Category U trees and groups are unsuitable for retention and cannot be realistically be retained as living trees for longer than 10 years. There are no Category U trees individually tagged in the survey area. However there are two Sycamore within Group 5a, and one Sycamore within Group 4 which are recommended to be removed within 10 years if the site is developed. The location of these trees can be seen on the Tree Constraints Drawing (D01-F366-23).

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9. Arboricultural Recommendations 9.1 Any preliminary arboricultural recommendations are for trees which currently pose an unacceptable risk of harm, or are causing, or have the potential to cause damage to existing property. 9.2 Table 2 (below) Arboricultural Implication Assessment Table identifies trees with preliminary arboricultural recommendations.

Arboricultural Implication Assessment Table

Preliminary Arboricultural Recommendations

Category A Category B Category C Category

U

Trees and Groups Requiring

Arboricultural Operations

G15 G2a

No Action

1823, 1829, 1836, 1842, 1846, 1847,

G17

1821, 1822, 1828, 1830, 1832, 1833, 1835, 1837, 1840, 1841, 1843, 1844, 1845, 1848, 1849, 1850, 1851, 1852,

G8, G10, G11, G14

1824, 1825, 1826, 1827, 1831, 1834, 1838, 1839,

1853, G1, G2b, G3, G4, G5a/b,

G6, G7, G9, G12, G13,

G16, H1a/b/c/d

9.3 Irrespective of development it is recommended to carry out works to two groups within the survey area. 9.3.1 Group G15 is located on the east side of the historic school building, and includes a mature Ash and Sycamore trees. The crowns of these trees have grown to within 1m of the building and have the potential to cause structural damage. It is recommended to crown lift the west side of this group to remove branches overhanging the roof and to give at least 2m clearance from the building. 9.3.2 Group G2a has a multi-stemmed Sycamore that has stems growing through the security fence. It is recommended to remove these stems to avoid damage to the fence. 9.4 Details of tree works can be seen in Appendix 1, Tree Survey Data Table.

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10. Summary 10.1 Lowther Forestry Group Ltd (LFG) has been commissioned by Lancashire County Council to produce an Arboricultural Survey and Tree Constraints Plan following guidance from BS 5837 2012: Trees in Relation to Design, Demolition and Construction - Recommendations. The report is to aid the future planning and management of the site. 10.2 The report aims to give a balanced judgement of the trees, hedges and groups, their current condition, and where necessary any future management. 10.3 The site is Larches House, Ashton-on-Ribble, Preston, PR2 1QE. 10.4 A check on the Preston City Council Interactive Map (30 April 2019) indicated that there are no Tree Preservation Orders or Conservation Areas protecting this site. 10.6 The survey identified and recorded 33 trees, 17 groups and 1 hedge requiring consideration prior to design or development of the site. 10.7 Irrespective of development it is recommended to carry out works to two groups within the survey area to protect the property from damage. 10.8 All tree works should conform to BS 3998: 2010 Recommendations for Tree Works. 10.9 Details of Root Protection Areas have been included and are shown in Drawing 01 Tree Constraints Plan (D01-F366-23). 10.10 Details relating to individual trees can be seen in Appendix 1, Tree Survey Data Table.

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April 2019 LSF/366-23/BK

Appendix 1 – Tree Data Table

Tree No. Botanical Name Common Name

Ht

(M)

1s

t B

ran

ch

(m

)

Cro

wn

cle

ara

nc

e

N E S W

Dia

me

ter

@ 1

.5m

(mm

)

No

of

ste

ms

Ag

e c

las

s

Ph

ys

iolo

gic

al

Str

uc

tura

l

SU

LE

BS

58

37

Ca

teg

ori

za

tio

n

Ha

za

rds

Comments and Defects

Preliminary

Arboricultural

Recommendations

Ro

ot

Pro

tec

tio

n

Are

a m

²

Ro

ot

Pro

tec

tio

n

Ra

diu

s

G1

Acer

pseudoplatanus,

Aesculus

hippocastanum,

Quercus robur

Sycamore, Horse

Chestnut, Oak14

3

N1 4 4 4 4 400 1 M F F 20 C2 N Minor suppression, unbalanced crowns. No action 72.39 4.80

1821 Quercus robur Oak 176

S2 8 8 8 8 780 1 M G F 40 B1 N

Tree beside boundary, crown overhangs footpath.

Minor presence of small and medium diameter

deadwood.

No action 275.27 9.36

1822Aesculus

hippocastanumHorse Chestnut 16

3

N2.5 9 9 11 6 1120 1 M G F 20 B1 N

Historic stem damage beside internal road.

Historic tear-out wounds.


S2 10 13 13 10 1250 1 M G F 40 A1 N

Open grown tree on the boundary.

The west side of the crown overhangs private

gardens.

Minor presence of small to large diameter deadwood

in the central crown.

No action 706.95 15.00

G2

(a,b)

Cupressus spp,

Acer

pseudoplatanus

Cypress, Sycamore 82

N1 2.5 2.5 3 2.5 230 1 SM F P 10 C2 N

Mixed group of trees and landscape shrubs.

A multi-stemmed sycamore is growing through the

palisade fence.

Remove Sycamore

to protect fence.23.93 2.76

H1

(a,b,c,d)

Ligustrum

ovalifoliumPrivet 1.5 N/A 0 1 1 1 1 83 N/A SM G F 10 C2 N Undermanaged healthy hedge. No action 3.12 1.00

1824Acer

pseudoplatanusSycamore 9

2

S1.5 4 4 4 4 300 1 SM F F 10 C1 N

Open grown tree previously crown lifted to 2m.

Located between road and classroom with overhead

telephone wire passing through the north side of the

crown.

No action 40.72 3.60

1825 Betula pendula Silver Birch 114

N2 4 3 4 4 370 1 SM G F 10 C1 N

Healthy tree with no significant defects.

Located between internal road and classroom.No action 61.94 4.44

1826Aesculus

hippocastanumHorse Chestnut 14.5

5

N2 8 11 8 6 1100 1 M F F 20 C1 N

Minor upper crown die-back and minor crown decline

on the south side.

Hard surfaces surround the stem.

Minor Horse Chestnut Bleeding Canker (HCBC)

exudates on lower stem.

Acute primary unions at 4m with included bark.

Crossing primary and secondary branches above the

road on the east side.

No action 547.46 13.20

G3

(incl

1827)

Picea abies, Ilex

aquifoliumNorway Spruce, Holly 14.5

1

N1 4 4 4 4 350 1 M F F 20 C2 N

A group of mixed conifer and evergreen shrub

species. Spruce is growing close to the building.No action 55.42 4.20

Tree Data Table - Arboricultural Survey BS5837 - F336-23

Client: Lancashire County Council Location: Preston, Lancashire Surveyor: Ben Knipe & Jonny Coulthard

Site: Larches House, Ashton-on-Ribble, PR2 1QE Survey Date: 16.04.19, 17.04.19

Condition

Weather: Dry and bright

Crown Spreads

1828 Taxus baccata English Yew 72.5

N2 4 4 4 4 410 1 SM G F 20 B1 N Healthy open grown tree beside the access road. No action 76.06 4.92

1829Acer


6

E4 6 8 7 6 900 1 M G G 40 A1 N

Healthy open grown tree beside the access road. A

principle tree for the site. Generally high crown. No

significant defects.

No action 366.48 10.80

G4

Acer

pseudoplatanus,

Fraxinus excelsior,

Tilia x europaea,

Fagus sylvatica

'Purpurea'

Sycamore, Ash, Lime,

Copper Beech18

2

W1.5 6 6 6 6 680 1 M G F 20 C2 N

A group of predominantly Category C trees with

defects including suppression, stem damage,

unbalanced crowns, storm damage and foreign

objects attached to the stem, upper crown decline.

No action 209.21 8.16

1830Acer


2

W2 5.5 9 8 4 700 1 M G F 20 B1 N

Healthy tree with a straight stem and a high crown.

Foreign objects attached to the west side of the stem

at 8m.

No action 221.70 8.40

1831Acer


2

W2 5 4.5 6 9 810 1 M G F 20 C1 N

Healthy generally open grown with a high crown.

Well developed buttressing.

Acute stem union 6m with reaction growth wood

predominantly on the north side of the union.

No action 296.85 9.72

1832 Tilia x europaea Common Lime2

W0 5 7 7 5 870 1 M G G 40 B1 N

Healthy generally open grown tree with a straight

stem.

Dense basal and stem epicormic clumps are

present.

Small and medium deadwood is present in the upper

crown.

No action 342.46 10.44

1833Acer


2

E2 7 7 7 7 790 1 M F G 20 B1 N

Healthy open grown tree with a balanced crown.

Minor reduction in vitality of branch tips seen in

upper crown.

No action 282.37 9.48

1834Acer


2

S2 5 5 5 5 490 1 M F F 10 C1 N

Stem leaning slightly to the east.

Minor branch tip decline in the upper crown.No action 108.63 5.88

1835Acer


2

N2 7 6 6 6 660 1 M G G 20 B1 N

Healthy generally open grown tree with a straight

stem. No action 197.09 7.92

#1836 Fraxinus excelsior Ash 207

N6 10 5 8 9 #750 1 M G G 40 A1 N

Healthy open grown tree with a straight stem and a

high crown. Third party tree.No action 254.50 9.00

G5a

Acer

pseudoplatanus,

Crataegus

monogyna,

Sambucus nigra

Sycamore, Hawthorn,

Elder13

4

S3 5 5 5 5 390 1 M F F 10 C2 N

A group of reduced quality sycamore with an

understorey of Elder.

Defects include bark loss and stem damage, acute

primary unions and unbalanced crowns.

Two category u trees are present in the group due to

large areas of stem damage and close proximity to a

private garden.


G5b Mixed BL C2 No action

1837Acer


4

E2 6 6 6 6 640 1 M G G 20 B1 N

Healthy tree with a balanced crown and a straight

stem. Minor ivy on the stem and scaffold limbs.No action 185.32 7.68

G6

Acer

pseudoplatanus,

Prunus

laurocerasus,

Aucuba japonica

crotonifolia, Ilex

aquifolium

Sycamore, Cherry

Laurel, Spotted Laurel,

Holly

8 N/A 0 3 3 3 3 75 1 SM G F 10 C2 NA mixed group of evergreen shrubs and trees with

young self-set broadleaf trees of low quality.No action 2.55 0.90

1838 Taxus baccata English Yew 101.5

SW2 5 5 5 5 640 1 SM F F 10 C1 N

Historic stem damage up to 2m.

Minor thinning of the crown.

Historic snap-off of low branches.

No action 185.32 7.68

1839 Taxus baccata English Yew 142

N2 4 5 4 4 679 2 SM F F 10 C1 N

A tree of reduced quality with bark loss from the

stem, crown die-back on the north side and a

generally thin crown.

No action 208.60 8.15

G7

Acer

pseudoplatanus,

Crataegus

monogyna, Prunus

laurocerasus, Ilex

aquifolium, Taxus

baccata, Aesculus

hippocastanum

Sycamore, hawthorn,

Cherry Laurel, Holly,

Yew, Horse Chestnut.

14 N/A 0 4 4 4 4 300 1 SM F F 10 C2 N

A group of mixed evergreen shrubs, self set trees

and understorey trees. Suppressed trees and

overgrown shrubs are present. Horse Chestnut on

the south boundary has HCBC.


1840 Taxus baccata English Yew 145

N2 8 8 6 8 770 2 M G F 40 B1 N

Multi-stemmed tree with three straight and uprights

stems. Stem junctions are acute with included bark.

The crown is high and balanced.

No action 268.26 9.24

G8Taxus baccata, Ilex

aquifolium, Acer

pseudoplatanus

English Yew, Holly,

Sycamore16

4

N2 7 7 7 7 570 1 M G F 20 B2 N

Group of trees with minor defects including basal

cavity, minor suppression and ivy cover.No action 147.00 6.84

1841 Fraxinus excelsior Ash 2412

NE12 7 10 10 10 950 1 M G F 20 B1 N

Tall straight stem with a high crown. This is a

principle tree on the site.

Historic snap-off of a low primary limb with Daldinia

concentrica on the branch stub.

Adjacent sycamore is growing under the crown of

this tree.

No action 408.33 11.40

1842 Fagus sylvatica Beech 215

S1 11 12 11 11 860 1 M G F 40 A2 N

A principle tree on the site.

Healthy open grown and balanced crown.

Straight solid stem.

Minor deadwood fungi on northeast buttress,

possibly Stereum spp.

Crown break is at 10m with heavy scaffold limbs.

No action 334.63 10.32

G9Tilia x europaea,

Acer

pseudoplatanus

Common Lime,

Sycamore18

4

N2 4 4 4 4 300 1 M F F 10 C2 N

A group of low quality trees with defects including

leaning stems, ivy cover, slender stems, suppressed

trees.


1843Acer


3

E1 7 5 8 9 890 1 M G F 20 B1 N

A healthy tree with a straight stem that is leaning

slightly west, and a crown that is being suppressed

on the east side.

A principle tree for the site.

No action 358.38 10.68


N3 9 10 10 9 950 1 M G F 20 B1 N


A tall straight stem with a co-dominant union at 6m.

A generally high and balanced crown with historic

storm damage.

No action 408.33 11.40


S1 7 9 8 7 720 1 M G G 20 B1 N Straight solid stem with a high and balanced crown. No action 234.55 8.64

1846Fagus sylvatica

'Purpurea'Copper Beech 16

4

S2 15 6 12 16 930 1 M G F 20 A1 N


Heavy scaffold limbs from 4m.

East side of the crown is being suppressed.

Historic removal of low primary limbs.

No action 391.32 11.16

G10

Castanea sativa,

Acer

pseudoplatanus,

Fraxinus excelsior,

Taxus baccata, Tilia

x europaea

Sweet Chestnut,

Sycamore, Ash,

English Yew, Common

Lime

183

W2 5 5 5 5 650 1 M D F 20 B1 N

A group of generally good quality trees that form a

screening and shelter belt.

No significant defects seen. Minor defects include

woodpecker holes (Sweet Chestnut), suppressed

crowns, HCBC (HC).

Young Yew and Holly are present as an understorey.

No action 191.16 7.80

1847 Pinus nigra Black Pine 2510

N8 9 6 6 8 780 1 M G G 20 A2 N


Tall straight stem with a high and healthy crown.

Bird nests are present in low limbs.

No action 275.27 9.36

G11 Ilex aquifolium Holly 8 2.5 N 1.5 4 4 4 4 280 1 M F F 20 B2 N Single stemmed, crown lifted, minor leaning stem No action 35.47 3.36

1848 Quercus spp Oak spp 188

S4 6 6 5 5 730 1 M G G 40 B1 N

Single stemmed, Good vigour, slight lean to the

north. Principle tree on the east side of the drive.No action 241.11 8.76

G12Acer

pseudoplatanus,

Taxus baccata

Sycamore, English

Yew16

5

W6 6 6 6 6 560 1 M F F 10 C2 N

A group with generally poor form for example

pollarded sycamore.No action 141.89 6.72


E2 8 11 8 8 820 1 M F G 20 B1 N

Straight solid single stem with a high and generally

balanced crown.

Dark exudate weeping stain on south side of stem

below 2m. Minor vitality reduction in branch tips in

the upper crown.

Tree is in the highway verge.

No action 304.23 9.84

1850 Tilia x europaea Common Lime 185

S4 7 3 4 7 610 1 M G F 20 B1 N

Healthy tree with a straight single stem and small

deadwood in the upper crown. Dense basal

epicormic shoots.

No action 168.36 7.32

1851 Fagus sylvatica Beech 184

SE4 5 6 5 5 630 1 M G F 20 B2 N Fair form, part of avenue No action 179.58 7.56

1852Aesculus

hippocastanumHorse chestnut 18

4

NW3 4 5 7 5 740 1 M G G 20 B1 N No significant signs of HCBC. Goo form and vigour. No action 247.76 8.88

G13

Acer

pseudoplatanus,

Ilex aquifolium,

Taxus baccata

Sycamore, Holly,

English Yew16

7

S7 4 4 4 4 450 1 M F F 20 C2 N

Lower quality group, closely spaced, signs of

suppressionNo action 91.62 5.40

G14

Tilia x europaea,

Taxus baccata,

Fraxinus excelsior,

Fagus sylvatica, Ilex

aquifolium

Lime,yew,ash,Beech,H

olly18

3

S3 6 6 6 6 645 1 M G G 20 B2 N

Good quality group, Principal trees include Beech,

Ash and Lime. The ash has reduced annual bud tip

extension.

No action 188.23 7.74

1853Acer


4

E4 1 2 3 5 490 1 M F P 10 C2 N Supressed, historic damage No action 108.63 5.88

G15

Fraxinus excelsior,

Acer

pseudoplatanus,

Taxus baccata,

Rhododendron spp,

Acer spp, Picea

abies

Ash, Sycamore,

English Yew,

Rhododendron,

Japanese Acer,

Norway Spruce

163

W4 8 8 8 8 700 1 M G F 20 B2 N

Principal trees in group include an Ash and a

Sycamore in close proximity to each other.

A mature Ash and Sycamore have crowns that are

within 1m of the historic building.

Crown lift west side

of group (mainly 2

trees) to protect

building.

221.70 8.40

G16 Larix decidua Larch 142

W2 3 3 4 6 480 1 M F F 10 C2 N Basal damage, small deadwood, reduced vitality No action 104.24 5.76

#G17

Quercus robur, Tilia

x europaea,

Aesculus

hippocastanum,

Fraxinus excelsior

Oak, Common Lime,

Horse Chestnut, Ash19

10

E3 14 14 14 14 #800 1 M G G 40 A1 N

A group of four trees on the boundary.

3rd party oak overhangs 14m East into siteNo action 289.57 9.60

Tree No:- Number given to the individual tree or group.

Key

G = Good, F = Fair, P = Poor, D = Dead

Crown Spreads:- Distance in meters from the stem of the tree to the edge of the canopy in the four cardinal directions.

Crown Clearance: Height above ground level to the canopy

First significant branch height and direction of growth i.e., North, South, East or West.1st Branch:-

Diameter:- Diameter of the trunk at 1.5 m above adjacent ground level. (mm)

SULE = Safe Useful Life Expectancy (years).BS5837 categorization:- 1 = Arboricultural values 2 = Landscape values

40+ = A, 20 to 40 = B, 10 - 20 = C, less than 10 years = U

No of Stems:- No of stems per tree below 1.5 m above adjacent ground levels.

Hazards:- Y = Hazards are present, N = No hazards present.

Physiological / Structural Condition:-

Tree number followed by # Tree, Group or Woodland with no access therefore dimensions are approximate.

3 = Conservation and cultural values 1, 2 or 3 plus the SULE = BS5837

Age Class:-

Y = Young, recently planted with no viable seed production. EM = Early Mature, apical dominance with growth to normal crown dimensions for species and height. M = Mature,

normal life expectancy with normal crown size for species and type and maximum seed production. OM = Over-Mature, past normal life expectancy and in natural decline. V = Veteran

and A = Ancient, both (A and V) are as defined by Natural England.

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Appendix 2 – Glossary of Arboricultural Terms

Term Description

Tree Number Reference number

Botanical Name Scientific name

Common Name

Height Height in metres

Crown Clearance Height in metres of crown clearance above adjacent ground level (to inform on ground clearance, crown stem ratio and shading

Crown Spread Distance from stem to crown edge. Usually specified as a single average distance or as four separate measurements for north, south, east and west

Stem Diameter

(Diameter at breast height) Stem diameter in millimetres at 1.5m above adjacent ground level (on sloping ground to be taken on the upslope side of the tree base) or immediately above the root flare for multi-stemmed trees

Physiological Condition

e.g. good, fair, poor, dead

Structural Condition

e.g. collapsing, the presence of any decay and physical defect

SULE Safe useful life expectancy

BS5837 grading U or A to C category grading

Hazards Defects present on a tree

Bat Potential The potential for the tree to be used by bats

Recommendations Preliminary management recommendations, including further investigation of suspected defects that require more detailed assessment and potential for wildlife habitat

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Appendix 3 – Surveyor Qualifications

PROFESSIONAL CURRICULUM VITAE

Name Ben Knipe

Position in Company Contracts Supervisor

Professional Qualifications

BA (Hons) Environmental Management degree Professional Tree Safety Inspection qualification QTRA, Quantified Tree Risk Assessment IOSH Managing Safely Arboricultural Association BS:5837 Surveying and Categorisation Training Course

Professional Experience

2015-Present Lowther Forestry Group Ltd

2012-2015 National Trust, Woodland Ranger, Central & East Lakes

2007-2012 Area Ranger, National Trust, Windermere & Troutbeck

2011-2012 Head Warden, National Trust, Lyme Park

2003-2007 Warden, South Peak Estate

2000-2003 National Trust Warden (Staffs) & Patrol Ranger (Macclesfield Forest)

Other Qualifications Signing & Guarding of Road Works (Chapter 8)

Peak District National Park Ranger Training

Chainsaw- CS30/1, CS36, CS38/9

Pesticides- PA1, PA6

C.A.T. Locator & Genny

Brushcutters & Trimmers

Off-road Driving (NPTC)

Manual Handling Level 2 for Managers

CSCS for Managers and SSSTS

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Appendix 4 – Legal Restriction 6.1 Trees in any location may be protected by legislation. Where development is proposed, additional legal protection may be appropriate and can be enforced by the local authority. Attention is drawn to legal controls and liabilities under common law for consideration at the earliest stages of potential site development. 6.2 The Town and Country Planning Act 1990 requires that, except in certain circumstances, “no work shall be carried out which will affect trees over a certain size which are situated in Conservation Areas”. Six weeks’ notice of intent has to be given to the local authority before the work is carried out. This provides an opportunity for the local authority to make a Tree Preservation Order (TPO) under this Act to protect the trees. 6.3 Tree Preservation Orders allow for trees to be protected either as individuals, groups, areas or woodlands. The orders have the effect of preventing the cutting down, topping, lopping, uprooting, wilful damage or wilful destruction of trees, except in certain circumstances, other than with consent of the local authority. 6.4 Even when no specific legal protection exists, it may be necessary to obtain a felling licence. These apply if the volume of timber exceeds specified amounts; site clearance, even of small areas, before detailed planning permission has been granted could exceed the felling licence quota. The Forestry Commission, under the Forestry Act 1967, administers felling licences. 6.5 Before carrying out any arboricultural or forestry operations, consideration should be given to the following legislation for protected species of flora and fauna: The Wildlife and Countryside Act 1981 (as amended), the Conservation (Natural Habitats & c.) Regulations 1994 (as amended), and the Countryside Rights of Way Act 2000 protected species of flora and fauna. This will prevent any harm or damage to protected species. 6.6 Substantial penalties and or prison sentences can be incurred for contravention of legislation relating to protected species. 6.7 Lowther Forestry Group Ltd has not been requested to make any checks for protected species on this site.

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Appendix 5 – Survey Methodology 7.1 The survey was carried out in accordance with BS5837 2012: Trees in Relation to Design, Demolition and Construction - Recommendations. A glossary of arboricultural terms used in this report can be found in Appendix 2. 7.2 All recommendations of tree works should be carried out to BS3998 2010: - Recommendations for Tree Work. 7.3 Tree categorisation is the method by which a value is placed on an individual tree using the method described in BS5837 2012. The method takes into account the Safe Useful Life Expectancy (SULE). This is measured in numbers of years. Trees of greater than 40 years = A, The Category A trees are of high quality with an estimated remaining life expectancy of 40 years. A minimum of 20 years = B, The category B trees are of moderate quality and value with an estimated remaining life expectancy of at least 20 years. A minimum of 10 years = C, The category C trees are trees of low quality with an estimated remaining life expectancy of at least 10 years, or young trees with a stem diameter below 150 mm. 7.4 Once this is established a trees contextual attributes are determined and come under the following three headings.

Mainly Arboricultural values.

Mainly Landscape values.

Mainly cultural values, including conservation.

7.5 Category U trees are those in such a condition that any existing value would be lost within 10 years and which should, in the current context, be removed for reasons of sound arboricultural management. 7.6 A single tree can come under one or more of these headings and can therefore be found twice in the quality assessment table. This does not give the tree a higher value than one with a single value in the same table. 7.7 The trees have been categorised in accordance with the cascade chart in Table 1 of BS5837 2012: Trees in Relation to Design, Demolition and Construction - Recommendations, page 9. 7.8 All trees were tagged except for trees on neighbouring properties which were inaccessible. The tree tags correspond with the tree numbering in the Tree Survey Data Table in Appendix 1. 7.9 Where access to the tree trunk is restricted the diameter is approximate. This is highlighted in by a hash mark (#) in the tree data table. 7.10 All measuring equipment is regularly checked and calibrated to ensure accuracy.

1840

1821

1822

1823

1824

1825

1826

1827

1828

1829

1830

1831*

1832

1833

1834

1835

1836*

1837

1838

1839

1841

1842

1843

1844

1845

1846

1848

1849

1850

1851

1852

1853

G1

H1a

G2a

H1b

H1c

H1d

G3

G4

G16

G15

G12

G13

G14

G11

G10

G17*

G2b

G5b*

G8

G9

G6*

G7

5m 10m 20m 30m 40m 50m

G5a

N

W E

S

NOTE: Tree/group numbers marked

with an * have approximate locations.

lowther-forestry.co.uk

[email protected]

Telephone: 01931 712218

Project: Larches House

Drawing Number: D01-F366-231:500 @ A1

May 2019

Key:

Crown Spread

Tree Number

Category

Root

Protection

Area

Category A

Category B

Category C

Category U

13

Client: Lancashire County Council

Drawing Title: Tree Constraints Plan

Lowther Forestry Group Ltd