B0069 · circulation-optimal · seed 2
B0069-heuristic_nsga2-2-1210
Heuristic-seeded NSGA-IIA+D · meets all 17 benchmark constraints. Brief B0069
Plan drawing of a fourplex on a 16.4 by 23.7 metre lot, 2 storeys, 4 dwellings, 24 rooms. Dwelling U0 (1BR) has 5 rooms totalling 66 square metres. Dwelling U1 (1BR) has 5 rooms totalling 65 square metres. Dwelling U2 (2BR) has 6 rooms totalling 65 square metres. Dwelling U3 (2BR) has 6 rooms totalling 66 square metres. Building footprint 146 square metres; open space 244 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.98, daylight 0.55, privacy 0.77, circulation 0.68, carbon 0.78, cost 0.42.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.981
- daylight
- 0.548
- privacy
- 0.769
- circulation
- 0.683
- carbon
- 0.781
- cost
- 0.417
Reported quantities
- FAR proxy (GFA / lot)
- 0.75
- site utilisation
- 0.988
- gross floor area, m²
- 291.6
- footprint, m²
- 145.8
- carbon proxy, kgCO₂e/m² (A1–A3)
- 339
- cost index / m² (unitless)
- 2.65
- worst habitable room, daylight
- 0.215
- circulation share of GFA
- 15%
- open space, net of parking
- 58%
- courtyard void, m²
- 0.0
- plumbing stacks
- 4
- 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 | 1BR | 66.0 | 5 |
| U1 | 1BR | 65.5 | 5 |
| U2 | 2BR | 65.5 | 6 |
| U3 | 2BR | 66.0 | 6 |
All 24 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 14.3 | 11.95 × 1.20 |
| CORE@1 | shared circulation | shared | 1 | 14.3 | 11.95 × 1.20 |
| U0@0#2 | kitchen | U0 | 0 | 10.8 | 3.05 × 3.55 |
| U0@0#0 | entry | U0 | 0 | 4.4 | 1.25 × 3.55 |
| U0@0#3 | bathroom | U0 | 0 | 6.0 | 1.70 × 3.55 |
| U0@0#1 | living | U0 | 0 | 25.8 | 6.00 × 4.30 |
| U0@0#4 | bedroom primary | U0 | 0 | 18.9 | 6.00 × 3.15 |
| U1@0#0 | entry | U1 | 0 | 2.9 | 1.20 × 2.45 |
| U1@0#3 | bathroom | U1 | 0 | 4.2 | 1.70 × 2.45 |
| U1@0#2 | kitchen | U1 | 0 | 7.5 | 3.05 × 2.45 |
| U1@0#1 | living | U1 | 0 | 29.5 | 5.95 × 4.95 |
| U1@0#4 | bedroom primary | U1 | 0 | 21.4 | 5.95 × 3.60 |
| U3@1#2 | kitchen | U3 | 1 | 8.8 | 3.00 × 2.95 |
| U3@1#0 | entry | U3 | 1 | 4.0 | 1.35 × 2.95 |
| U3@1#3 | bathroom | U3 | 1 | 4.9 | 1.65 × 2.95 |
| U3@1#1 | living | U3 | 1 | 22.2 | 6.00 × 3.70 |
| U3@1#4 | bedroom primary | U3 | 1 | 16.5 | 3.80 × 4.35 |
| U3@1#5 | bedroom secondary | U3 | 1 | 9.6 | 2.20 × 4.35 |
| U2@1#0 | entry | U2 | 1 | 3.3 | 1.30 × 2.55 |
| U2@1#3 | bathroom | U2 | 1 | 4.2 | 1.65 × 2.55 |
| U2@1#2 | kitchen | U2 | 1 | 7.7 | 3.00 × 2.55 |
| U2@1#1 | living | U2 | 1 | 21.1 | 5.95 × 3.55 |
| U2@1#4 | bedroom primary | U2 | 1 | 16.9 | 3.45 × 4.90 |
| U2@1#5 | bedroom secondary | U2 | 1 | 12.3 | 2.50 × 4.90 |