B0045 · circulation-optimal · seed 1
B0045-heuristic_nsga2-1-1305
Heuristic-seeded NSGA-IIA+D · meets all 17 benchmark constraints. Brief B0045
Plan drawing of a fourplex on a 17.0 by 26.0 metre lot, 2 storeys, 4 dwellings, 26 rooms. Dwelling U0 (2BR) has 6 rooms totalling 84 square metres. Dwelling U1 (2BR) has 6 rooms totalling 81 square metres. Dwelling U2 (2BR) has 6 rooms totalling 84 square metres. Dwelling U3 (2BR) has 6 rooms totalling 81 square metres. Building footprint 181 square metres; open space 254 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.93, daylight 0.45, privacy 0.80, circulation 0.70, carbon 0.82, cost 0.52.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.926
- daylight
- 0.445
- privacy
- 0.802
- circulation
- 0.698
- carbon
- 0.821
- cost
- 0.523
Reported quantities
- FAR proxy (GFA / lot)
- 0.82
- site utilisation
- 0.952
- gross floor area, m²
- 362.2
- footprint, m²
- 181.1
- carbon proxy, kgCO₂e/m² (A1–A3)
- 324
- cost index / m² (unitless)
- 2.49
- worst habitable room, daylight
- 0.121
- circulation share of GFA
- 13%
- open space, net of parking
- 59%
- courtyard void, m²
- 0.0
- plumbing stacks
- 5
- footprint corners
- 4
- 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 | 2BR | 84.5 | 6 |
| U1 | 2BR | 80.6 | 6 |
| U2 | 2BR | 83.8 | 6 |
| U3 | 2BR | 81.3 | 6 |
All 26 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 16.0 | 12.80 × 1.25 |
| CORE@1 | shared circulation | shared | 1 | 16.0 | 12.80 × 1.25 |
| U0@0#2 | kitchen | U0 | 0 | 6.3 | 3.25 × 1.95 |
| U0@0#0 | entry | U0 | 0 | 2.8 | 1.45 × 1.95 |
| U0@0#3 | bathroom | U0 | 0 | 3.6 | 1.85 × 1.95 |
| U0@0#1 | living | U0 | 0 | 30.8 | 6.55 × 4.70 |
| U0@0#4 | bedroom primary | U0 | 0 | 18.4 | 2.95 × 6.25 |
| U0@0#5 | bedroom secondary | U0 | 0 | 22.5 | 3.60 × 6.25 |
| U1@0#3 | bathroom | U1 | 0 | 5.1 | 2.10 × 2.45 |
| U1@0#0 | entry | U1 | 0 | 3.7 | 1.50 × 2.45 |
| U1@0#2 | kitchen | U1 | 0 | 6.5 | 2.65 × 2.45 |
| U1@0#1 | living | U1 | 0 | 24.4 | 6.25 × 3.90 |
| U1@0#4 | bedroom primary | U1 | 0 | 17.2 | 6.25 × 2.75 |
| U1@0#5 | bedroom secondary | U1 | 0 | 23.8 | 6.25 × 3.80 |
| U3@1#2 | kitchen | U3 | 1 | 7.4 | 3.15 × 2.35 |
| U3@1#3 | bathroom | U3 | 1 | 4.2 | 1.80 × 2.35 |
| U3@1#0 | entry | U3 | 1 | 3.2 | 1.35 × 2.35 |
| U3@1#1 | living | U3 | 1 | 38.7 | 6.30 × 6.15 |
| U3@1#5 | bedroom secondary | U3 | 1 | 12.5 | 2.85 × 4.40 |
| U3@1#4 | bedroom primary | U3 | 1 | 15.2 | 3.45 × 4.40 |
| U2@1#0 | entry | U2 | 1 | 3.7 | 1.45 × 2.55 |
| U2@1#3 | bathroom | U2 | 1 | 4.6 | 1.80 × 2.55 |
| U2@1#2 | kitchen | U2 | 1 | 8.3 | 3.25 × 2.55 |
| U2@1#1 | living | U2 | 1 | 39.3 | 6.50 × 6.05 |
| U2@1#4 | bedroom primary | U2 | 1 | 12.7 | 2.95 × 4.30 |
| U2@1#5 | bedroom secondary | U2 | 1 | 15.3 | 3.55 × 4.30 |