mixed use development · daylight factors and generating detailed contour plots. robes, cupboards,...

MELBOURNE SYDNEY BRISBANE Level 11, 60 Albert Road Level 3, 8 Spring Street Level 4, 490 Upper Edward Street South Melbourne VIC 3205 Sydney NSW 2000 Spring Hill QLD 4000 T: 03 9521 1195 T: 02 8203 5447 T: 07 3088 4022

www.adpconsulting.com.au

Innovative Design for a Better Tomorrow

Mixed Use Development Daylight Assessment Report

368-374 Smith Street Collingwood VIC 3066 Revision: 06 Job No: MEL0878 Date: 16 February 2018

http://www.adpconsulting.com.au/

http://www.adpconsulting.com.au/

/368-374 Smith Street, Collingwood – Daylight Assessment Report

/ ADP Consulting Pty Ltd / / Page: 2 of 48 / / Revision: 06 /

Contents 1. Summary .................................................................................................................................................... 5 2. Introduction ................................................................................................................................................. 6

2.1 Background ........................................................................................................................................ 6 2.2 Layout of Modelled Spaces ............................................................................................................... 6

3. Methodology and Assumptions .................................................................................................................. 8 4. Assessment Criteria ................................................................................................................................... 9

4.1 BCA Compliance (Mandatory) ........................................................................................................... 9 4.2 BESS Standards (Non Mandatory) .................................................................................................... 9

5. Results ...................................................................................................................................................... 10 5.1 BCA Compliance ............................................................................................................................. 10 5.2 BESS Standards .............................................................................................................................. 11

Existing Surrounding Conditions.................................................................................................. 11 With Proposed Adjacent Buildings............................................................................................... 13

5.3 Results For Whole Development ..................................................................................................... 14 Existing Surrounding Conditions.................................................................................................. 14 With Proposed Adjacent Buildings............................................................................................... 15

6. Radiance Output – Daylight Factor Contour Plots ................................................................................... 16 6.1 Apartment 1.01 ................................................................................................................................ 16

APT 1.01 – Bed 1 ........................................................................................................................ 16 APT 1.01 – Bed 2 ........................................................................................................................ 17 APT 1.01 – Living / Kitchen ......................................................................................................... 18

6.2 Apartment 1.02 ................................................................................................................................ 19 APT 1.02 – Bed 1 ........................................................................................................................ 19 APT 1.02 – Bed 2 ........................................................................................................................ 20 APT 1.02 – Living / Kitchen ......................................................................................................... 21


6.4 Apartment 1.04 ................................................................................................................................ 25 APT 1.04 – Bed 1 ........................................................................................................................ 25 APT 1.04 – Bed 2 ........................................................................................................................ 26 APT 1.04 – Bed 3 ........................................................................................................................ 27 APT 1.04 – Living / Kitchen ......................................................................................................... 28

6.5 Apartment 1.05 ................................................................................................................................ 29 APT 1.05 – Bed 1 ........................................................................................................................ 29 APT 1.05 – Bed 2 ........................................................................................................................ 30 APT 1.05 – Bed 3 ........................................................................................................................ 31 APT 1.05 – Living / Kitchen ......................................................................................................... 32



6.8 Apartment 2.03 ................................................................................................................................ 39 APT 2.03 – Bed............................................................................................................................ 39 APT 2.03 – Living / Kitchen ......................................................................................................... 40

6.9 Apartment 2.04 ................................................................................................................................ 41 APT 2.04 – Bed............................................................................................................................ 41 APT 2.04 – Living / Kitchen ......................................................................................................... 42

6.10 Apartment 2.05 ................................................................................................................................ 43 APT 2.05 – Bed 1 .................................................................................................................... 43 APT 2.05 – Bed 2 .................................................................................................................... 44 APT 2.05 – Living / Kitchen ..................................................................................................... 45

6.11 Apartment 2.06 ................................................................................................................................ 46



APT 2.06 – Bed 1 .................................................................................................................... 46 APT 2.06 – Bed 2 .................................................................................................................... 47 APT 2.06 – Living / Kitchen ..................................................................................................... 48



Prepared for: - Project: 368-374 Smith Street

Location: 368-374 Smith Street, Collingwood

Prepared by: ADP Consulting

Level 11, 60 Albert Road

South Melbourne VIC 3205

Project No: MEL0878

Revision: Rev06

Date: 16/02/2018

Document Control and Verification

Revision 01 02 03 04

Date 25/08/2017 31/08/2017 12/10/2017 10/11/2017

Comment Prelim Updated Revised Layout Add L2 Contours

Author DK DK DK DK

Signature

Technical Review SH SH SH SH

Signature

QA and Authorisation

SH SH SH SH

Signature

Document Control and Verification

Revision 05 05

Date 4/12/2017 14/02/2018

Comment Updated Elevations

Proposed Adjacent

Author DK DK

Signature

Technical Review SH SH

Signature

QA and Authorisation

SH SH

Signature



1. Summary This report documents the methodology, assumptions and results of daylight analysis for the project at 368-374 Smith Street, Collingwood. Key results / findings are as follows:

• All modelled spaces comply with the mandatory requirements for daylight set by the Building Council of Australia (BCA) as specified in Section F4.2 “Methods and Extent of Natural Lighting”.

• When modelled with existing surrounding conditions:

- 92% of the bedrooms in the project meet BESS Daylight Standards. 6 out of a total 76 bedrooms does not meet BESS Daylight Standards. This is above the 80% BESS minimum requirement.

- 88% of the living rooms in the project meet BESS Daylight Standards. 5 out of a total 41 living rooms

do not meet BESS Daylight Standards. This is above the 80% BESS minimum requirement.

• When modelled with proposed adjacent developments on the East, South and West:

- 83% of the bedrooms in the project meet BESS Daylight Standards. 13 out of a total 76 bedrooms does not meet BESS Daylight Standards.

- 66% of the living rooms in the project meet BESS Daylight Standards. 14 out of a total 41 living rooms

do not meet BESS Daylight Standards. Overall, the results show that the design delivers excellent daylight performance. When subject to proposed future developments on the East, West and South, the project still retains good daylight provision to most of the bedrooms and living rooms. The proposed future development on the East is expected to have a large impact on this project’s daylight provision. The daylight model has allowed for a 6-storey building at 1 Easey St, and another 6-storey building at 6-10 Sackville St. This is a worst-case scenario.



2. Introduction

2.1 BACKGROUND

Daylight analysis has been undertaken for the project based on architectural town planning drawings from Warren and Mahoney Architects (received 14 Feb 2018). Daylight analysis has been undertaken for “worst case” apartments located at level 1, and level 2 which represents a typical floor plan. A total of 11 apartments are modelled. They are the following:

• Apartment 1.01

• Apartment 1.02

• Apartment 1.03

• Apartment 1.04

• Apartment 1.05

• Apartment 2.01

• Apartment 2.02

• Apartment 2.03

• Apartment 2.04

• Apartment 2.05

• Apartment 2.06

2.2 LAYOUT OF MODELLED SPACES

Refer to Figure 1 and Figure 2 for the layout of the modelled apartments:

FIGURE 1: LEVEL 1 FLOOR PLAN

1.05 Bed 2

1.05 Bed 3

1.05 Bed 1

1.04 Bed 1

1.04 Bed 3

1.04 Bed 2

1.01 Bed 1 1.01 Bed 2

1.02 Bed 2

1.02 Bed 1

1.03 Bed 1

1.03 Bed 2



FIGURE 2: LEVEL 2 FLOOR PLAN

2.01 Bed 2 2.01

Bed 1

2.02 Bed 1

2.02 Bed 2

2.03 Bed

2.05 Bed 2

2.05 Bed 1

2.04 Bed

2.06 Bed 1

2.06 Bed 2



3. Methodology and Assumptions Daylight models were built using IES VE and simulated using Radiance. Radiance is capable of calculating daylight factors and generating detailed contour plots. Robes, cupboards, toilets, bathrooms, joinery and circulation space have been excluded from the analysis. The key model assumptions are as follows:

• External glazing visual light transmittance: o 0.65

• Internal glazing visual light transmittance: o 0.90

• Surface reflectance’s: o Ceilings 0.80 o Walls 0.70 o Floors 0.30

• Analysis surface: o At working plane, defined in this case as the floor surface

• Overshadowing: o Adjacent property buildings, local external shading elements such as canopies, fins, overhangs.

• Sky: o 10K Lux CIE Overcast Sky, where the Ground Ambient light level ≈ 10,000 Lux

Daylight factor is the ratio of the light level inside a building to the light level outside the building. The higher the daylight factor, the better the daylight provision to the indoor space. Sample daylight factor contour plots are provided in Section 6.



4. Assessment Criteria Daylight performance is assessed against the following:

4.1 BCA COMPLIANCE (MANDATORY)

The minimum, mandatory requirements for daylight set by the Building Council of Australia (BCA) are specified in Section F4.2 “Methods and Extent of Natural Lighting”, stating: (a) Required natural lighting must be provided by –

i. Windows, excluding roof lights, that – A. Have an aggregate light transmitting area exclusive of framing members, glazing bars

or other obstructions of not less than 10% of the floor area of the room; and B. Are open to the sky or face a light court or other space open to the sky or an open

veranda, car port or the like.

4.2 BESS STANDARDS (NON MANDATORY)

Various Councils around Victoria adopt the Sustainable Design Assessment in the Planning Process (SDAPP) Tools as the preferred means of assessing ESD. The BESS Tool has been developed to replace the Sustainable Tools for Environmental Performance Strategy (STEPS) assessment tool, to support SDAPP requirements. In the BESS tool, points are awarded where:

• At least 80% of the total number of living rooms achieve a daylight factor greater than 1% for a minimum of 90% of the floor area of each living room, including kitchens.

• At least 80% of the total number of bedrooms achieve a daylight factor greater than 0.5% for a minimum of 90% of the floor area of each bedroom.

Additional points are awarded where 100% of dwellings comply.



5. Results

5.1 BCA COMPLIANCE

Table 1 below summarises the daylight performance in comparison to the BCA requirements:

Room Name Floor Area

(m²) Glazing

Area (m²) Glazing %

BCA Compliant? (>10%)

L1 - AP 1.01 - Bed 1 8.8 6.4 73% Yes

L1 - AP 1.01 - Bed 2 10.9 5.0 46% Yes

L1 - AP 1.01 - Living / Kitchen 25.1 7.9 31% Yes

L1 - AP 1.02 - Bed 1 11.2 8.5 76% Yes

L1 - AP 1.02 - Bed 2 12.0 3.5 29% Yes


L1 - AP 1.03 - Bed 1 11.9 3.6 30% Yes

L1 - AP 1.03 - Bed 2 9.8 6.4 65% Yes


L1 - AP 1.04 - Bed 1 10.8 6.3 58% Yes

L1 - AP 1.04 - Bed 2 9.3 6.2 67% Yes

L1 - AP 1.04 - Bed 3 12.7 4.5 36% Yes


L1 - AP 1.05 - Bed 1 9.5 6.5 69% Yes

L1 - AP 1.05 - Bed 2 13.3 8.3 63% Yes

L1 - AP 1.05 - Bed 3 9.1 4.9 54% Yes


L2 - AP 2.01 - Bed 1 8.8 6.4 73% Yes

L2 - AP 2.01 - Bed 2 10.9 5.0 46% Yes


L2 - AP 2.02 - Bed 1 11.2 8.5 76% Yes

L2 - AP 2.02 - Bed 2 10.0 3.5 35% Yes


L2 - AP 2.03 - Bed 11.4 7.0 61% Yes


L2 - AP 2.04 - Bed 12.7 5.0 39% Yes


L2 - AP 2.05 - Bed 1 11.4 7.4 65% Yes

L2 - AP 2.05 - Bed 2 12.0 3.2 27% Yes


L2 - AP 2.06 - Bed 1 10.9 8.8 81% Yes

L2 - AP 2.06 - Bed 2 9.9 4.9 49% Yes


TABLE 1: BCA COMPLIANCE RESULTS The results in Table 1 show that all spaces analysed comply with BCA requirements on glazing ratio.



5.2 BESS STANDARDS

Existing Surrounding Conditions

Table 2 below summarises the daylight performance in comparison to BESS Standards, based on existing surrounding conditions:

Room Name Daylight Factor

(DF) Target

% Area Required to Achieve DF

Target

% Area Achieving DF

Target

Meet BESS Standards?

L1 - AP 1.01 - Bed 1 0.5% 90% 100% Yes

L1 - AP 1.01 - Bed 2 0.5% 90% 100% Yes

L1 - AP 1.01 - Living / Kitchen 1.0% 90% 62% No

L1 - AP 1.02 - Bed 1 0.5% 90% 100% Yes

L1 - AP 1.02 - Bed 2 0.5% 90% 90% Yes


L1 - AP 1.03 - Bed 1 0.5% 90% 97% Yes

L1 - AP 1.03 - Bed 2 0.5% 90% 100% Yes


L1 - AP 1.04 - Bed 1 0.5% 90% 96% Yes

L1 - AP 1.04 - Bed 2 0.5% 90% 100% Yes

L1 - AP 1.04 - Bed 3 0.5% 90% 37% No


L1 - AP 1.05 - Bed 1 0.5% 90% 100% Yes

L1 - AP 1.05 - Bed 2 0.5% 90% 99% Yes

L1 - AP 1.05 - Bed 3 0.5% 90% 100% Yes


L2 - AP 2.01 - Bed 1 0.5% 90% 100% Yes

L2 - AP 2.01 - Bed 2 0.5% 90% 100% Yes

L2 - AP 2.01 - Living / Kitchen 1.0% 90% 98% Yes

L2 - AP 2.02 - Bed 1 0.5% 90% 100% Yes

L2 - AP 2.02 - Bed 2 0.5% 90% 99% Yes


L2 - AP 2.03 - Bed 0.5% 90% 100% Yes


L2 - AP 2.04 - Bed 0.5% 90% 100% Yes


L2 - AP 2.05 - Bed 1 0.5% 90% 100% Yes

L2 - AP 2.05 - Bed 2 0.5% 90% 67% No


L2 - AP 2.06 - Bed 1 0.5% 90% 100% Yes

L2 - AP 2.06 - Bed 2 0.5% 90% 100% Yes


TABLE 2: BESS DAYLIGHT RESULTS – EXISTING SURROUNDING CONDITIONS Comments on the results:

• The apartments modelled include level 1, which represents the worst-case scenario.

• Level 2 to level 6 are typical floor plans, thus level 2 is included in the modelling.

• Some of the modelled spaces meet BESS Standards for daylight, some do not.

• Level 1 daylight performance is constrained by need to maintain the heritage façade as well as the presence of surrounding structures.

• Level 2 shows excellent compliance with BESS Standards

• The factors contributing to better level2 performance include: - The apartments from level 2 upwards are a “shallower” than level 1



- The impact of surrounding low-rise structures is much reduced from level 2 upwards. - Level 2 layout is different from level 1 - The west facing apartments from level 2 upwards do not have an “enclosed” balcony with a roof.



With Proposed Adjacent Buildings

Table 3 below summarises the daylight performance in comparison to BESS Standards, with proposed adjacent buildings:

Room Name Daylight Factor

(DF) Target

% Area Required to Achieve DF

Target

% Area Achieving DF

Target

Meet BESS Standards?

L1 - AP 1.01 - Bed 1 0.5% 90% 100% Yes

L1 - AP 1.01 - Bed 2 0.5% 90% 100% Yes


L1 - AP 1.02 - Bed 1 0.5% 90% 100% Yes

L1 - AP 1.02 - Bed 2 0.5% 90% 43% No


L1 - AP 1.03 - Bed 1 0.5% 90% 48% No

L1 - AP 1.03 - Bed 2 0.5% 90% 100% Yes


L1 - AP 1.04 - Bed 1 0.5% 90% 95% Yes

L1 - AP 1.04 - Bed 2 0.5% 90% 100% Yes

L1 - AP 1.04 - Bed 3 0.5% 90% 37% No


L1 - AP 1.05 - Bed 1 0.5% 90% 100% Yes

L1 - AP 1.05 - Bed 2 0.5% 90% 99% Yes

L1 - AP 1.05 - Bed 3 0.5% 90% 100% Yes


L2 - AP 2.01 - Bed 1 0.5% 90% 100% Yes

L2 - AP 2.01 - Bed 2 0.5% 90% 100% Yes


L2 - AP 2.02 - Bed 1 0.5% 90% 100% Yes

L2 - AP 2.02 - Bed 2 0.5% 90% 62% No


L2 - AP 2.03 - Bed 0.5% 90% 88% No


L2 - AP 2.04 - Bed 0.5% 90% 100% Yes


L2 - AP 2.05 - Bed 1 0.5% 90% 100% Yes

L2 - AP 2.05 - Bed 2 0.5% 90% 65% No


L2 - AP 2.06 - Bed 1 0.5% 90% 100% Yes

L2 - AP 2.06 - Bed 2 0.5% 90% 100% Yes


TABLE 3: BESS DAYLIGHT RESULTS – WITH PROPOSED ADJACENT BUILDINGS Comments on the results:

• Proposed adjacent buildings on the East, South and West are allowed for in the modelling.

• The proposed adjacent buildings on the West and South do not exert much impact on the daylight performance of our subject development.

• The proposed future development on the East will have a large impact on this project’s daylight provision. The daylight model has allowed for a 6-storey building at 1 Easey St, and another 6-storey building at 6-10 Sackville St. This is a worst-case scenario.

• The East facing apartments are affected the most by the addition of the future proposed building at 1 Easey St and at 6-10 Sackville St.



5.3 RESULTS FOR WHOLE DEVELOPMENT

As stated before, in the BESS tool, points are awarded where:

• At least 80% of the total number of living rooms achieve a daylight factor greater than 1% for a minimum of 90% of the floor area of each living room, including kitchens.

• At least 80% of the total number of bedrooms achieve a daylight factor greater than 0.5% for a minimum of 90% of the floor area of each bedroom.

This section presents compliance rates for the whole development.

Existing Surrounding Conditions

Table 4 and Table 5 show anticipated compliance for every living / bedroom in the project, based on existing surrounding conditions. The results indicate that:

• 92% of the bedrooms in the project meet BESS Daylight Standards. 6 out of a total 76 bedrooms does not meet BESS Daylight Standards. This is above the 80% BESS minimum requirement.

• 88% of the living rooms in the project meet BESS Daylight Standards. 5 out of a total 41 living rooms do not meet BESS Daylight Standards. This is above the 80% BESS minimum requirement.

Overall, this is an excellent result as virtually all of the bedrooms and most of the living rooms are compliant. Not many projects achieve such robust overall daylight performance. All non-compliant rooms are located on level 1, which is the worst-case scenario. Level 1 daylight performance is constrained by need to maintain the heritage façade as well as the presence of surrounding structures.

Bedroom No. of Pass No. of Fail

Grd - -

L1 11 1

L2 9 1

L3 9 1

L4 9 1

L5 9 1

L6 9 1

L7 8 0

L8 6 0

Total 70 6

92% 8%

TABLE 4: EXISTING SURROUNDING CONDITIONS – BEDROOM COMPLIANCE RATE

Living No. of Pass No. of Fail

Grd - -

L1 0 5

L2 6 0

L3 6 0

L4 6 0

L5 6 0

L6 6 0

L7 4 0

L8 2 0

Total 36 5 88% 12%

TABLE 5: EXISTING SURROUNDING CONDITIONS – LIVING ROOM COMPLIANCE RATE



With Proposed Adjacent Buildings

Table 6 and Table 7 show anticipated compliance for every living / bedroom in the project, with proposed adjacent buildings in place. The results indicate that:

• 83% of the bedrooms in the project meet BESS Daylight Standards. 13 out of a total 76 bedrooms does not meet BESS Daylight Standards. This is above the 80% BESS minimum requirement.

• 66% of the living rooms in the project meet BESS Daylight Standards. 14 out of a total 41 living rooms do not meet BESS Daylight Standards. This is below the 80% BESS minimum requirement.

Proposed adjacent buildings are located on the East, West and South. The daylight model has allowed for a 6-storey building at 1 Easey St, and another 6-storey building at 6-10 Sackville St. This is a worst-case scenario.

Bedroom No. of Pass No. of Fail

Grd - -

L1 9 3

L2 7 3

L3 8 2

L4 8 2

L5 9 1

L6 8 2

L7 8 0

L8 6 0

Total 63 13

83% 17%

TABLE 6: WITH PROPOSED ADJACENT BUILDINGS – BEDROOM COMPLIANCE RATE

Living No. of Pass No. of Fail

Grd - -

L1 0 5

L2 3 3

L3 3 3

L4 3 3

L5 6 0

L6 6 0

L7 4 0

L8 2 0

Total 27 14 66% 34%

TABLE 7: WITH PROPOSED ADJACENT BUILDINGS – LIVING ROOM COMPLIANCE RATE



6. Radiance Output – Daylight Factor Contour Plots

6.1 APARTMENT 1.01

APT 1.01 – Bed 1

Yellow = daylight factor above 1.5% Green = daylight factor 1% - 1.5% Blue = daylight factor 0.5% - 1% Red = daylight factor below 0.5%

FIGURE 3: APT 1.01 – BED 1 (EXISTING SURROUNDING CONDITIONS)



APT 1.01 – Bed 2





APT 1.01 – Living / Kitchen


FIGURE 5: APT 1.01 – LIVING / KITCHEN (EXISTING SURROUNDING CONDITIONS)



6.2 APARTMENT 1.02

APT 1.02 – Bed 1





APT 1.02 – Bed 2





6.3 APARTMENT 1.03

APT 1.03 – Bed 1





APT 1.03 – Bed 2





6.4 APARTMENT 1.04

APT 1.04 – Bed 1





APT 1.04 – Bed 2





APT 1.04 – Bed 3





6.5 APARTMENT 1.05

APT 1.05 – Bed 1





APT 1.05 – Bed 2





APT 1.05 – Bed 3





6.6 APARTMENT 2.01

APT 2.01 – Bed 1





APT 2.01 – Bed 2





6.7 APARTMENT 2.02

APT 2.02 – Bed 1





APT 2.02 – Bed 2





6.8 APARTMENT 2.03

APT 2.03 – Bed


FIGURE 26: APT 2.03 – BED (EXISTING SURROUNDING CONDITIONS)



6.9 APARTMENT 2.04

APT 2.04 – Bed


FIGURE 28: APT 2.04 – BED (EXISTING SURROUNDING CONDITIONS)



6.10 APARTMENT 2.05

APT 2.05 – Bed 1





APT 2.05 – Bed 2





6.11 APARTMENT 2.06

APT 2.06 – Bed 1





APT 2.06 – Bed 2



mixed use development · daylight factors and generating detailed contour plots. robes, cupboards,...

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