B0069 · privacy-optimal · seed 0
B0069-heuristic_nsga2-0-1252
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 65 square metres. Dwelling U1 (1BR) has 5 rooms totalling 65 square metres. Dwelling U2 (2BR) has 6 rooms totalling 64 square metres. Dwelling U3 (2BR) has 6 rooms totalling 66 square metres. Building footprint 147 square metres; open space 238 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.99, daylight 0.56, privacy 0.80, circulation 0.60, 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
- 0.994
- daylight
- 0.563
- privacy
- 0.795
- circulation
- 0.604
- carbon
- 0.781
- cost
- 0.421
Reported quantities
- FAR proxy (GFA / lot)
- 0.76
- site utilisation
- 0.996
- gross floor area, m²
- 294.0
- footprint, m²
- 147.0
- carbon proxy, kgCO₂e/m² (A1–A3)
- 339
- cost index / m² (unitless)
- 2.65
- worst habitable room, daylight
- 0.237
- circulation share of GFA
- 19%
- 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 | 64.8 | 5 |
| U1 | 1BR | 64.8 | 5 |
| U2 | 2BR | 63.7 | 6 |
| U3 | 2BR | 65.9 | 6 |
All 24 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 17.4 | 12.00 × 1.45 |
| CORE@1 | shared circulation | shared | 1 | 17.4 | 12.00 × 1.45 |
| U0@0#2 | kitchen | U0 | 0 | 10.7 | 3.05 × 3.50 |
| U0@0#3 | bathroom | U0 | 0 | 6.0 | 1.70 × 3.50 |
| U0@0#0 | entry | U0 | 0 | 4.4 | 1.25 × 3.50 |
| U0@0#1 | living | U0 | 0 | 25.2 | 6.00 × 4.20 |
| U0@0#4 | bedroom primary | U0 | 0 | 18.6 | 6.00 × 3.10 |
| U1@0#0 | entry | U1 | 0 | 5.4 | 1.55 × 3.50 |
| U1@0#3 | bathroom | U1 | 0 | 5.6 | 1.60 × 3.50 |
| U1@0#2 | kitchen | U1 | 0 | 10.0 | 2.85 × 3.50 |
| U1@0#1 | living | U1 | 0 | 25.2 | 6.00 × 4.20 |
| U1@0#4 | bedroom primary | U1 | 0 | 18.6 | 6.00 × 3.10 |
| U3@1#2 | kitchen | U3 | 1 | 8.8 | 3.05 × 2.90 |
| U3@1#3 | bathroom | U3 | 1 | 4.9 | 1.70 × 2.90 |
| U3@1#0 | entry | U3 | 1 | 3.9 | 1.35 × 2.90 |
| U3@1#1 | living | U3 | 1 | 22.3 | 6.10 × 3.65 |
| U3@1#4 | bedroom primary | U3 | 1 | 11.7 | 2.75 × 4.25 |
| U3@1#5 | bedroom secondary | U3 | 1 | 14.2 | 3.35 × 4.25 |
| U2@1#0 | entry | U2 | 1 | 6.2 | 1.30 × 4.80 |
| U2@1#3 | bathroom | U2 | 1 | 7.9 | 1.65 × 4.80 |
| U2@1#2 | kitchen | U2 | 1 | 14.2 | 2.95 × 4.80 |
| U2@1#1 | living | U2 | 1 | 16.2 | 5.90 × 2.75 |
| U2@1#4 | bedroom primary | U2 | 1 | 11.1 | 3.40 × 3.25 |
| U2@1#5 | bedroom secondary | U2 | 1 | 8.1 | 2.50 × 3.25 |