B0025 · density-optimal · seed 0
B0025-heuristic_nsga2-0-404
Heuristic-seeded NSGA-IIA+D · meets all 17 benchmark constraints. Brief B0025
Plan drawing of a courtyard on a 19.3 by 26.8 metre lot, 2 storeys, 5 dwellings, 27 rooms. Dwelling U0 (studio) has 4 rooms totalling 36 square metres. Dwelling U1 (1BR) has 5 rooms totalling 52 square metres. Dwelling U2 (1BR) has 5 rooms totalling 95 square metres. Dwelling U3 (1BR) has 5 rooms totalling 95 square metres. Dwelling U4 (2BR) has 6 rooms totalling 88 square metres. Building footprint 202 square metres; open space 328 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.74, daylight 0.52, privacy 0.72, circulation 0.69, carbon 0.74, cost 0.37.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.739
- daylight
- 0.525
- privacy
- 0.718
- circulation
- 0.685
- carbon
- 0.745
- cost
- 0.374
Reported quantities
- FAR proxy (GFA / lot)
- 0.78
- site utilisation
- 0.830
- gross floor area, m²
- 404.1
- footprint, m²
- 202.0
- carbon proxy, kgCO₂e/m² (A1–A3)
- 352
- cost index / m² (unitless)
- 2.72
- worst habitable room, daylight
- 0.152
- circulation share of GFA
- 15%
- open space, net of parking
- 61%
- courtyard void, m²
- 42.0
- plumbing stacks
- 6
- 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 | studio | 35.7 | 4 |
| U1 | 1BR | 52.0 | 5 |
| U2 | 1BR | 94.8 | 5 |
| U3 | 1BR | 94.8 | 5 |
| U4 | 2BR | 87.6 | 6 |
All 27 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 19.6 | 15.70 × 1.25 |
| CORE@1 | shared circulation | shared | 1 | 19.6 | 15.70 × 1.25 |
| U1@0#2 | kitchen | U1 | 0 | 7.1 | 3.15 × 2.25 |
| U1@0#3 | bathroom | U1 | 0 | 4.0 | 1.80 × 2.25 |
| U1@0#0 | entry | U1 | 0 | 2.7 | 1.20 × 2.25 |
| U1@0#1 | living | U1 | 0 | 20.0 | 6.15 × 3.25 |
| U1@0#4 | bedroom primary | U1 | 0 | 18.1 | 6.15 × 2.95 |
| U0@0#3 | bathroom | U0 | 0 | 6.8 | 2.60 × 2.60 |
| U0@0#0 | entry | U0 | 0 | 3.1 | 1.20 × 2.60 |
| U0@0#2 | kitchen | U0 | 0 | 6.1 | 2.35 × 2.60 |
| U0@0#1 | living | U0 | 0 | 19.7 | 6.15 × 3.20 |
| U4@1#2 | kitchen | U4 | 1 | 10.3 | 3.45 × 3.00 |
| U4@1#3 | bathroom | U4 | 1 | 4.5 | 1.50 × 3.00 |
| U4@1#0 | entry | U4 | 1 | 3.6 | 1.20 × 3.00 |
| U4@1#1 | living | U4 | 1 | 31.1 | 6.15 × 5.05 |
| U4@1#4 | bedroom primary | U4 | 1 | 19.8 | 3.20 × 6.20 |
| U4@1#5 | bedroom secondary | U4 | 1 | 18.3 | 2.95 × 6.20 |
| U2@0#0 | entry | U2 | 0 | 6.1 | 2.15 × 2.85 |
| U2@0#3 | bathroom | U2 | 0 | 4.6 | 1.60 × 2.85 |
| U2@0#2 | kitchen | U2 | 0 | 8.3 | 2.90 × 2.85 |
| U2@0#1 | living | U2 | 0 | 34.9 | 6.65 × 5.25 |
| U2@0#4 | bedroom primary | U2 | 0 | 40.9 | 6.65 × 6.15 |
| U3@1#0 | entry | U3 | 1 | 4.7 | 1.35 × 3.45 |
| U3@1#3 | bathroom | U3 | 1 | 7.9 | 2.30 × 3.45 |
| U3@1#2 | kitchen | U3 | 1 | 10.3 | 3.00 × 3.45 |
| U3@1#1 | living | U3 | 1 | 33.3 | 6.65 × 5.00 |
| U3@1#4 | bedroom primary | U3 | 1 | 38.6 | 6.65 × 5.80 |