B0007 · cost-optimal · seed 1
B0007-heuristic_nsga2-1-1231
Heuristic-seeded NSGA-IIA+D · meets all 17 benchmark constraints. Brief B0007
Plan drawing of a courtyard on a 21.7 by 21.6 metre lot, 2 storeys, 4 dwellings, 25 rooms. Dwelling U0 (1BR) has 5 rooms totalling 95 square metres. Dwelling U1 (2BR) has 6 rooms totalling 93 square metres. Dwelling U2 (2BR) has 6 rooms totalling 93 square metres. Dwelling U3 (2BR) has 6 rooms totalling 95 square metres. Building footprint 214 square metres; open space 241 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.74, daylight 0.36, privacy 0.76, circulation 0.67, carbon 0.78, cost 0.64.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.737
- daylight
- 0.365
- privacy
- 0.762
- circulation
- 0.674
- carbon
- 0.777
- cost
- 0.640
Reported quantities
- FAR proxy (GFA / lot)
- 0.91
- site utilisation
- 0.829
- gross floor area, m²
- 428.8
- footprint, m²
- 214.4
- carbon proxy, kgCO₂e/m² (A1–A3)
- 340
- cost index / m² (unitless)
- 2.31
- worst habitable room, daylight
- 0.137
- circulation share of GFA
- 15%
- open space, net of parking
- 54%
- courtyard void, m²
- 37.5
- plumbing stacks
- 2
- footprint corners
- 8
- preferred adjacencies met
- 0%
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 | 1BR | 95.2 | 5 |
| U1 | 2BR | 92.8 | 6 |
| U2 | 2BR | 92.8 | 6 |
| U3 | 2BR | 95.2 | 6 |
All 25 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 26.4 | 18.20 × 1.45 |
| CORE@1 | shared circulation | shared | 1 | 26.4 | 18.20 × 1.45 |
| U1@0#2 | kitchen | U1 | 0 | 7.9 | 4.25 × 1.85 |
| U1@0#3 | bathroom | U1 | 0 | 3.3 | 1.80 × 1.85 |
| U1@0#0 | entry | U1 | 0 | 2.6 | 1.40 × 1.85 |
| U1@0#1 | living | U1 | 0 | 26.8 | 7.45 × 3.60 |
| U1@0#4 | bedroom primary | U1 | 0 | 29.8 | 7.45 × 4.00 |
| U1@0#5 | bedroom secondary | U1 | 0 | 22.4 | 7.45 × 3.00 |
| U2@1#3 | bathroom | U2 | 1 | 4.0 | 2.15 × 1.85 |
| U2@1#0 | entry | U2 | 1 | 2.9 | 1.55 × 1.85 |
| U2@1#2 | kitchen | U2 | 1 | 6.9 | 3.75 × 1.85 |
| U2@1#1 | living | U2 | 1 | 26.8 | 7.45 × 3.60 |
| U2@1#4 | bedroom primary | U2 | 1 | 29.8 | 4.25 × 7.00 |
| U2@1#5 | bedroom secondary | U2 | 1 | 22.4 | 3.20 × 7.00 |
| U0@0#0 | entry | U0 | 0 | 3.9 | 1.55 × 2.50 |
| U0@0#3 | bathroom | U0 | 0 | 7.3 | 2.90 × 2.50 |
| U0@0#2 | kitchen | U0 | 0 | 8.0 | 3.20 × 2.50 |
| U0@0#1 | living | U0 | 0 | 26.0 | 7.65 × 3.40 |
| U0@0#4 | bedroom primary | U0 | 0 | 50.1 | 7.65 × 6.55 |
| U3@1#0 | entry | U3 | 1 | 3.1 | 1.65 × 1.85 |
| U3@1#3 | bathroom | U3 | 1 | 3.4 | 1.85 × 1.85 |
| U3@1#2 | kitchen | U3 | 1 | 7.7 | 4.15 × 1.85 |
| U3@1#1 | living | U3 | 1 | 27.5 | 7.65 × 3.60 |
| U3@1#4 | bedroom primary | U3 | 1 | 30.8 | 4.40 × 7.00 |
| U3@1#5 | bedroom secondary | U3 | 1 | 22.8 | 3.25 × 7.00 |