C-3 Determine the Development Controls AMBF, PSOmax, TOSL etc

Given Lot Data:

C-3 Zoned Inside/Regular Lot with Frontage of 42.00m and Depth of 55.0m with RROW of 25meters width.

Therefore: TLA=W x D

TLA=2,310.00sqm

SOLUTION:

1. SOLVING FOR AMBF

a. AMBF via Setbacks Table VIII.2

Front=6.00m 

Side/Rear=3.00m

• Building Width=42.00m-3.00m-3.00m you get 36.00m
• Building Length=55.00m-6.00m-3.00m you get 46.00m

AMBF=Width x Length

AMBFSB=36.00m x 46.00m you get 1,656.00sqm

b. AMBF via PSOmax Table VIII.1 

AMBF=80%

AMBF=80% of TLA you get 1,848.00sqm

c. AMBF via TGFA Table VII.1

AMBF=75% of TLA

AMBF=0.75 x (42.00m x 55.00m)

AMBFTGFA=0.75 x (2,310.00sqm) you get 1,732.50sqm.

d. AMBF via TOSL Table VIII.G.6

25% Open Space therefore 75% allotted for Building Footprint

AMBF=75% of TLA

AMBF=0.75 x (42.00m x 55.00m)

AMBFTOSL=0.75 x (2,310.00sqm) you get 1,732.50sqm.

e. AMBF via Lot Type/Location (Figures VIII.2-VIII.8)

15% Open Space therefore 85% allotted for Building Footprint

AMBF=85% of TLA

AMBF=0.85 x (42.00m x 55.00m)

AMBFLOTTYPE=0.85 x (2,310.00sqm) you get 1,963.50sqm.

*Most Stringent is AMBF via Setbacks having the least value of 1,656.00sqm

2. SOLVING FOR PSOmax

Get the AMBF with the least value

PSOmax=(AMBF/TLA)*100

PSOmax=(1,656.00sqm/2,310.00sqm)*100

PSOmax=71.69%

3. SOLVING FOR TOSL

TOSL=100%-PSOmax

TOSL=100%-71.69%

TOSLmax=28.31% or 

TOSLmax=28.31% of TLA you get 654.00sqm

4. SOLVING FOR USAmin

Direct from Table VIII.1 get the listed USA minimum percentage.

USAmin=5% or

USAmin=5% of TLA you get 115.50sqm

5. SOLVING FOR ISAmax

Same Table VIII.1 get the listed ISA maximum percentage.

ISAmax=15% or

ISAmax=15% of TLA you get 346.50sqm

To counter-check you can always add both USA and ISA to match the TOSL value

USA + ISA = TOSL

5% + 15% = 28.31%

20% = 28.31% (not equal, with 8.31% difference)

Therefore add more 8.31% to USAmin 

USAtotal=13.31%

6. SOLVING FOR MACA

MACA=PSOmax + ISAmax

MACA=71.69% + 15%

MACA=86.69% or

MACA=2,002.50sqm

7. SOLVING FOR GFAmax

Refer to Table VII.G.1 FLAR

GFAmax=TLA x FLAR

GFAmax=2,310.00sqm x 34

GFAmax=78,540.00sqm

8. SOLVING FOR TGFAmax base from Table VII.1

TGFAmax=PSOmax x BHL or TGFAmax=AMBF x BHL

PSOmax=% of TLA

Get BHL value of floors/storeys in Table VII.2

TGFAmax=1,656.00sqm x 60 

TGFAmax=99,360.00sqm

9. SOLVING FOR TGFAmax base from Multiplier in Table VII.G.2

TGFAmax=GFAmax x Multiplier

TGFAmax=78,540.00 x 1.50

TGFAmax=117,810.00sqm