B0052 · cost-optimal · seed 2
B0052-nsga2-2-1367
NSGA-IID · meets all 17 benchmark constraints. Brief B0052
Plan drawing of a rowhouse on a 30.4 by 30.6 metre lot, 2 storeys, 4 dwellings, 36 rooms. Dwelling U0 (2BR) has 9 rooms totalling 185 square metres. Dwelling U1 (2BR) has 9 rooms totalling 232 square metres. Dwelling U2 (2BR) has 9 rooms totalling 260 square metres. Dwelling U3 (2BR) has 9 rooms totalling 234 square metres. Building footprint 455 square metres; open space 472 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.76, daylight 0.55, privacy 0.92, circulation 0.57, carbon 0.94, cost 0.91.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.762
- daylight
- 0.550
- privacy
- 0.923
- circulation
- 0.571
- carbon
- 0.936
- cost
- 0.913
Reported quantities
- FAR proxy (GFA / lot)
- 0.98
- site utilisation
- 0.846
- gross floor area, m²
- 911.0
- footprint, m²
- 455.5
- carbon proxy, kgCO₂e/m² (A1–A3)
- 283
- cost index / m² (unitless)
- 1.89
- worst habitable room, daylight
- 0.212
- circulation share of GFA
- 18%
- open space, net of parking
- 51%
- courtyard void, m²
- 0.0
- plumbing stacks
- 5
- footprint corners
- 4
- preferred adjacencies met
- 50%
Benchmark constraints
Benchmark rules, not building code.
- C01geometry valid passed
- C02no overlap passed
- C03within buildable passed
- C04min room area passed
- C05min room dimension passed
- C06max room aspect passed
- C07min unit area passed
- C08unit connectivity passed
- C09street access passed
- C10habitable daylight passed
- C11required adjacency passed
- C12forbidden door passed
- C13open space passed
- C14courtyard provision passed
- C15programme complete passed
- C16unit contiguity passed
- C17vertical support passed
Dwellings and rooms
| Dwelling | Type | Area m² | Rooms |
|---|---|---|---|
| U0 | 2BR | 184.7 | 9 |
| U1 | 2BR | 232.2 | 9 |
| U2 | 2BR | 259.8 | 9 |
| U3 | 2BR | 234.2 | 9 |
All 36 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| STAIR:U0@0 | circulation | U0 | 0 | 15.4 | 1.80 × 8.55 |
| STAIR:U0@1 | circulation | U0 | 1 | 15.4 | 1.80 × 8.55 |
| U0@0#1 | living | U0 | 0 | 43.6 | 5.10 × 8.55 |
| U0@0#0 | entry | U0 | 0 | 5.5 | 3.90 × 1.40 |
| U0@0#3 | bathroom | U0 | 0 | 7.8 | 3.90 × 2.00 |
| U0@0#2 | kitchen | U0 | 0 | 20.1 | 3.90 × 5.15 |
| U0@1#5 | bedroom primary | U0 | 1 | 37.6 | 4.40 × 8.55 |
| U0@1#7 | bathroom | U0 | 1 | 17.3 | 4.60 × 3.75 |
| U0@1#6 | bedroom secondary | U0 | 1 | 22.1 | 4.60 × 4.80 |
| STAIR:U1@0 | circulation | U1 | 0 | 16.1 | 1.50 × 10.75 |
| STAIR:U1@1 | circulation | U1 | 1 | 16.1 | 1.50 × 10.75 |
| U1@0#2 | kitchen | U1 | 0 | 28.5 | 3.85 × 7.40 |
| U1@0#3 | bathroom | U1 | 0 | 12.9 | 3.85 × 3.35 |
| U1@0#0 | entry | U1 | 0 | 10.9 | 5.45 × 2.00 |
| U1@0#1 | living | U1 | 0 | 47.7 | 5.45 × 8.75 |
| U1@1#6 | bedroom secondary | U1 | 1 | 25.9 | 3.75 × 6.90 |
| U1@1#7 | bathroom | U1 | 1 | 14.4 | 3.75 × 3.85 |
| U1@1#5 | bedroom primary | U1 | 1 | 59.7 | 5.55 × 10.75 |
| STAIR:U2@0 | circulation | U2 | 0 | 14.2 | 1.40 × 10.15 |
| STAIR:U2@1 | circulation | U2 | 1 | 14.2 | 1.40 × 10.15 |
| U2@0#0 | entry | U2 | 0 | 17.7 | 6.80 × 2.60 |
| U2@0#2 | kitchen | U2 | 0 | 51.3 | 6.80 × 7.55 |
| U2@0#1 | living | U2 | 0 | 37.5 | 4.60 × 8.15 |
| U2@0#3 | bathroom | U2 | 0 | 9.2 | 4.60 × 2.00 |
| U2@1#7 | bathroom | U2 | 1 | 42.0 | 6.05 × 6.95 |
| U2@1#6 | bedroom secondary | U2 | 1 | 19.4 | 6.05 × 3.20 |
| U2@1#5 | bedroom primary | U2 | 1 | 54.3 | 5.35 × 10.15 |
| STAIR:U3@0 | circulation | U3 | 0 | 16.0 | 1.75 × 9.15 |
| STAIR:U3@1 | circulation | U3 | 1 | 16.0 | 1.75 × 9.15 |
| U3@0#3 | bathroom | U3 | 0 | 11.3 | 3.10 × 3.65 |
| U3@0#2 | kitchen | U3 | 0 | 6.8 | 3.10 × 2.20 |
| U3@0#0 | entry | U3 | 0 | 10.2 | 3.10 × 3.30 |
| U3@0#1 | living | U3 | 0 | 72.7 | 7.95 × 9.15 |
| U3@1#7 | bathroom | U3 | 1 | 35.6 | 6.20 × 5.75 |
| U3@1#6 | bedroom secondary | U3 | 1 | 21.1 | 6.20 × 3.40 |
| U3@1#5 | bedroom primary | U3 | 1 | 44.4 | 4.85 × 9.15 |