freelance project management residential

glFreelance DesignFreelance Design

& Consultant Services& Consultant Services

Case Studies: Residential

Grahame LandersGrahame Landers BSc(HonsBSc(Hons) MSc MCIOB ) MSc MCIOB AssocRICSAssocRICS

Freelance Project Manager

Freelance Project Management Case StudyResidential Flats Drawing Alterations,

Hertfordshire, UK.



Project Aim:

To gain Planning Approval for revising the original Planning Approved drawings, to capture the changes made during the construction phase.

Freelance Project Manager Services

included:

∗ Defining the Clients brief

∗ Undertaking a measured survey

∗ Producing existing drawings

∗ Producing proposed drawings

∗ Liaisons with the Planning Department

PROPOSED SECTION B-B

Scale: 1:50

DETAIL F

PROPOSED KITCHEN APERTURE SUPPORT

Scale: 1:5

DETAIL G

PROPOSED EAVES

Scale: 1:5

DETAIL E

PROPOSED SUBSTRUCTURE

Scale: 1:5

BUILDING

CONTROL

Client

SPW/BC/06

Revision

Drawing Number

Proposed Section and

Details

Drawing Title

Site Address

ScaleDate

A1 Drawing. Scale as stated.28th February 2010

222 Park Way

West London

Rev. 00

MR. Foster

Agent

MR. G Landers

63C Hemel Hempstead

Herts. HP 1 3AF

110mm

Note: the materials specified for the external walls have

been selected to achieve the 'U' Value of 0.30W/m2K.

This complies with the required 'U' Value stated in Part

L1 and L2: 2006 of the Building Regulations which is

0.30W/m2K for extensions. The 'U' Value calculation is

based on BS EN ISO 6946. Please refer to the email

message sent by Vencel Resil Limited on 02.02.10.

Note: The brickwork above the external window and

external door apertures are to be supported by Catnic

Cougar CG 90 / 100 lintels. Each lintel is to be a standard

size and fit the length of the aperture. A brickwork soldier

course above the window and door apertures is to be

included on all ground floor apertures.

See Detail G (Drawing 06)

See Detail E (Drawing 06)

See Detail F (Drawing 06)

Beams: 2Nr. 178 x 102 UB's side by

side and bolted together with M12 bolts

at 750mm centres. The UB's is to rest

upon Class B Engineering brick

(Staffordshire Blue or similar standard)

padstone.

Ventilation Duct: Duct from ground

floor toilet. Duct to run from the ceiling

attached mechanical extractor fab to

rear external wall. The duct is to laid

above the kitchen ceiling.

Drainage Pipe: from en-suite sink

Graded Floor Joists: 50mm x

200mm C16 grade timber floor joist to

BS 4978 or BS EN 519 or other

national equalivent and so marked.

Strength to be C grade and to BS EN

338. Treatment to be fire retardant

impregnation and British Wood

Preserving and Damp Proofing

Association Commodity Specification

FR2, Type A. Moisture content at time

of erection to be 13 - 19%.

Drainage Pipe: from shower

Existing Timber Joist: The ex isting

185mm high x 50mm thick built in joist

to be cut within a 6mm tolerance from

the back of joist hanger. The redesign

of the joist will allow the two steel

beams to be recessed above the

plastered ceiling. Teat cut ends.

Joist Hanger: Special restraint propierty

joist hanger to BS 5628 Part 1 to provide

laterial restraint to the external walls. Joist

hangers to be explanet or similar

approved standard. Strength of the joist

hanger to be confirmed by the Structural

Engineer to ensure a match with the

blockwork strength.Timber joists must be

accurately cut to length with an overall

tolerance at the back plate of 6mm.

Pack to beam: Pack to outer side of steel

beam. The pack is to be notched to allow

for the bolt connection.

Plaster Ceiling: 13mm thick plasterboard

with 2mm skim. The existing kitchen

ceiling is to levelled with the new kitchen

extension ceiling to allow for a flush finish.

Floor Boards: 16 - 25mm thick

softwood T&G flooring. New extension

floor is to be laid level with the existing

first floor.

Plaster: Manufacturer to be British

Gypsum Ltd. Product to be multicoat

propriety plaster - Thistle Hardwall for

undercoats. Application: Undercoat

th ickness to be 11mm thick and a finishing

coat of 2mm thick. Preparation: prepare

background and conduits and the like and

apply bonding agents and provide a key for

the finish ing coat. Stainless steel beads to

be compliant with BS EN 10088 - 1.

External Wall: New 315.5mm thick

external cavity wall construction. The

outer leaf is to be 65mm high x 215mm

long x 102.5mm wide fletton common

brick. The 100mm cavity is to be partially

filled with 75mm thick Jabfill Premium

supplied by Vencel Resil Limited (tel:

02083209175). The inner leaf is to be

215mm high x 620mm long x 100mm wide

Durox Supa Aircrete Block supplied by

Tarmac (tel:08456062468). The

compressive strength of the Aircrete Block

is to be 3.6M/mm2. . The horizontal and

vertical joints to be standard 10mm thick

mortar mix.

Wall Ties: Stain less steel ties with

insulation retainers. Manufacturer to be

Catnic or similar approved standard.

Structural Engineer to specify tie. Fix ties

at 400mm centres.

Windows and Doors: Windows and doors

to be REHAU. Windows to be 70mm and

chamfered. All new windows and doors to

be pitch polymer under cill damp proof

course. Manufacturer to be ruberiod or

similar standard. Product reference: Original

High Performance DPC.

Note: For the roof and floor structures please refer to

drawing 07.

Foul Drainage: 100mm dia pipe run is to

be v itrified clay to BS EN 295. The pipe is

to have a min imum depth of 1:40 gradient.

The pipe is to have a flow rate of 9.2 litres /

second. he pipe is to be encased in at least

100mm thick pea shingle or a similar

granular fill surround. The top of the

granular fill to be protected with a concrete

slab with a minimum overhang of 300mm.

Screed: At least 65mm thick fast

drying screed. Product to be Tarmac

Truscreed. To be laid level with exist

floor. Mix to be 1:3 (rapid harding

cement:sand) to BS 8204. Screed to

be tapped down to even horizontal

level and to ensure no gaps at

perimeters. Float fin ish.

Floor insulation: 100mm thick floor

insulation. Manufacturer to be Jablite.

Product to be Jabfloor Premium 70.

Supplied in sheet form. Install to

manufacturers instructions.

Membrane: membrane to BS EN

13967:2004. Manufactures to be

visqueen. Product to be black coloured

Visqueen EcoMembrane

(polythethylene and high tear

resistance). Jointing of membrane is to

overlap by at least 150mm and sealed

using Visqueen Double Sided Joining

Tape, then secured using 100mm wide

Visqueen girth joining tape. Fixed in

wall at least 100mm.

Vertical floor edge insulation: 30mm

thick edge strip. Manufacturer to be

Jablite. Product to be Jabfloor

Premium 70. Supplied in sheet form.

Install to manufacturers instructions.

Concrete floor slab: 150mm

concrete floor slab to be laid again the

compacted hardcore. Mix to be

sand:cement with aggregate.

Structural Engineer to confirm the

strength of the mix and final thickness.

Concrete to be tapped down to even

horizontal level and to ensure no gaps

at perimeters.

Hardcore 200mm hardcore laid

against the earth and compacted.

Structural Engineer to confirm the final

thickness.

Note: the materials specified for the concrete floor slab

have been selected to achieve the 'U' Value of 0.22W/m2K.

This complies with the required 'U' Value stated in Part L1

and L2: 2006 of the Building Regulations which is

0.22W/m2K for extensions. The 'U' Value calculation is

based on BS EN ISO 6946. Please refer to the email

message sent by Vencel Resil Limited on 01.02.10.

Concrete Foundations Excavate

trenches to 1.355m from ground floor

level and lay concrete foundations up

to 1.000m high from base of trench.

Concrete to BS EM 206-1 and BS

8500-2. Final depth of foundations,mix

and strength to be determined by the

LA Building Control Officer and

Structural Engineer. Mix to achieve

50mm slump when tested.

DPC: pitch polymer damp proof course

. Manufacturer to be ruberiod or similar

standard. Product reference: Original

High Performance DPC.

External plinth: plinth to be 150mm

high or two brick h igh and to match the

size and mix as the existing.

600mm

1000m

355mm

1.355m

Concrete cavity fill to base of cavity:

Concrete to BS EN 206-1 and BS

8500-2.Maintain a 75mm between top

pf fill and external ground level and

min imum of 225mm between top of fill

and ground level DPC. When placing

the concrete is to be compacted.

Soffit and face: Eaves size to match

existing. The existing Soffit and fiacia to be

removed. The Soffit and fascia is to be

PVC-u. The soffit is to have 10mm

continuous natural air ventilation strip with fly

screen.

Rainwater Goods: Rainwater goods to be

100mm PVC-u and attached to the existing

Underlay: To BS 747 and to be felt type 1F.

Product to be Marley Waterproofing Undertile

Felt or similar standard. The felt is to be

waterproof, breathable and durable.

Install to manufacturers instructions.

Battens: 38mm x 25mm timber battens. Treatment

to be fire retarding impregnation and British Wood

Preserv ing and Damp Proofing Association

Commodity Specification FR., Type A. Moisture

content at time of erection to be 13 - 19%

Roof and ridge tiles: Roof and ridge tiles to

match existing size, colour. Roof tiles to be laid to

existing lap and lap. Double tile at eaves. Ridge

tiles are to be vented with 5mm continuous air

gap.

Close Cavity: Close cavity with a duress

supper lightweight block.

Wall Plate: Final size of the wall plate is to

match the existing to ensure the new roof

structure matches the ex isting height and

pitch. Treatment to be fire retarding

impregnation and British Wood Preserving

and Damp Proofing Association Commodity

Specification FR., Type A. Moisture content

at time of erection to be 13 - 19%

Straps: Mild Steel Straps vertical restraint

straps. Straps to be heavy duty 30mm wide x

800 long x 5mm thick pre galvanised edge

coated mild steel bent traps at 1.2mm

centres to tie down the wall plate to the inner

blockwork. Length to be 1200mm..

Manufacturer to be explanet or similar

approved standard.

Note: the roof is to achieve a 'U' Value of 0.16W/m2K. to

comply with the required 'U' Value stated in Part L1 and

L2: 2006 of the Building Regulations.

Rafter tray: trays to be laid between rafters

to ensure a clear air path of 10mm - 25mm

continuous air path between the roof

underlay and insulation. Explamnet or similar

approved standard. Install to manufacturers

recommendations

Roof insulation: 3 layers of 100mm thick

isowool insulation. Two layers to be between

joists and one layer laid at 90 degrees across

the joists. At eaves level the insulation is to

laid in to prevent voids and air gaps.

Project Aim:

New two storey extension to an existing dwelling.

Freelance Project Manager Services included:

∗ Producing a set of building control drawings

incorporating:

∗ Sections, Plans and Construction details

∗ Bridging over existing below ground drainage

∗ Full compliance with UK Building Regs

∗ Specification on drawings

∗ Close liaisons with the Structural Engineer on

structural matters

∗ Site inspections

Key Aspects:

No existing below ground drawings were available and when excavating storm water drainage were discussed and therefore quick solutions were required to prevent delays.

Freelance Project Management Case Study

New Two-Storey Residential Extension,

London.

glFreelance Design Freelance Design


PROPOSED SOUTH EAST ELEVATION

Scale: 1:100

NEW DWELLINGEXISTING TERRACE DWELLINGS EXISTING GARDEN & DWELLING

NOTE:

Hard Wood Front Clear Double Glazed Sash Windows.

To be Painted White. Appearance to Match Existing Terrace

Hard Wood Front Door to Match Existing Terrace Style and Design.

Sloping Path to Front Door (no Steps), to allow for Ambulant Disabled

Use. Path to be Tiled with Design and Appearance to Match Existing.

Front Boundary Wall to Match Existing Traditional Terrace.

New Garage to be Precast Reinforced Concrete with Bitumen

Corrugated Roof, to Match Existing.

Hardwood Eaves and Hardwood Dental Course, to Match Existing.

To be Painted White.

Red Face Brickwork to Match Existing Terrace. Traditional Brickwork

Bond to Match Existing Terrace

Roof to be natural slate (Welsh or Spanish). Size and Appearanceto Match Existing Terrace.

Rainwater Goods and External Soil Vent Pipe to be Black PaintedCast Iron. Appearance to Match Existing Terrace.

Front Boundary Wall Inside Face (Patio Side), to have a

Bicycle Locking Provision. To Encourage Occupiers to Use Bicycles.

NEW GARAGE &

ALTERED DRIVE

PROPOSED NORTH WEST ELEVATION

NEW DWELLING EXISTING TERRACE DWELLINGSEXISTING GARDEN & DWELLING ALTERED DRIVE

Fence Removed

For Clarity

NOTE:

Hard Wood First Floor Frosted Double Glazed Sash

Window to Bathroom. To be Painted White. Appearance

to Match Existing Terrace

Hard Wood Fixed First Floor Frosted Double Glazed

Staircase Window. To be Painted White. Appearance

to Match Existing Terrace.

Rear Brickwork to Match Existing Terrace. Traditional

Brickwork Bond to Match Existing Terrace

Roof to be natural slate (Welsh or Spanish). Size and

Ground Floor Powder Coated Aluminium Clear

Double Glazed Sliding Patio Window. Colour to be White.

Hardwood Eaves and Hardwood Dental Course,

to Match Existing Terrace. To be Painted White.

Rainwater Goods and External Soil Vent Pipe to be Black

appearance to Match Existing Terrace.

Painted Cast Iron. Appearance to Match Existing Terrace.

Scale: 1:100

PROPOSED NORTH EAST ELEVATION

Scale: 1:100

NEW DWELLING (Inc. Front and Rear Patios)

NOTE:

Brickwork to Match Existing Terrace. Traditional

Brickwork Bond to Match Existing Terrace

Front Boundary Wall to Match Existing Traditional

Terrace.

N

S

W

C Areys & N Kavanaugh

Client

Grahame Landers

63C High Street,

Old Town,

Hemel Hempstead,

Hertfordshire. HP1 3AF.

Proposed Dwelling on Land

Adjacent to Nr. 1 Park Hill,

Harpenden, Hertfordshire.

7th January 2008 As Shown on DrawingDate Scale

Address

Drawing Title

PROPOSED ELEVATIONS

Drawing Number Revision

HARPENDEN/2007/P03

Agent

PLANNING

ISSUE

Project Aim:

New two storey dwelling to the end of an existing row of traditional terrace .

Freelance Project

Manager Services

included:

∗Produced a set of drawings (existing and proposed: Sections, Plans, levels, party wall detail)

∗ Acted as Planning Agent

Key Aspects:

The proposed dwelling needed to be in-keeping with the 1880’s street scene.

Freelance Project Management Case Study

New Two-Storey Dwelling,

Hertfordshire, UK.



freelance project management residential

Documents