B0020 · privacy-optimal · seed 0
B0020-nsga2-0-1494
NSGA-IID · meets all 17 benchmark constraints. Brief B0020
Plan drawing of a duplex on a 18.0 by 21.2 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (2BR) has 6 rooms totalling 103 square metres. Dwelling U1 (2BR) has 6 rooms totalling 103 square metres. Building footprint 117 square metres; open space 259 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.80, daylight 0.55, privacy 0.97, circulation 0.58, carbon 0.80, cost 0.45.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.800
- daylight
- 0.551
- privacy
- 0.965
- circulation
- 0.582
- carbon
- 0.800
- cost
- 0.453
Reported quantities
- FAR proxy (GFA / lot)
- 0.61
- site utilisation
- 0.870
- gross floor area, m²
- 233.1
- footprint, m²
- 116.6
- carbon proxy, kgCO₂e/m² (A1–A3)
- 332
- cost index / m² (unitless)
- 2.60
- worst habitable room, daylight
- 0.296
- circulation share of GFA
- 16%
- open space, net of parking
- 69%
- courtyard void, m²
- 0.0
- plumbing stacks
- 4
- footprint corners
- 4
- preferred adjacencies met
- 50%
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 | 103.4 | 6 |
| U1 | 2BR | 103.4 | 6 |
All 14 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 13.2 | 1.40 × 9.40 |
| CORE@1 | shared circulation | shared | 1 | 13.2 | 1.40 × 9.40 |
| U0@0#1 | living | U0 | 0 | 39.7 | 6.25 × 6.35 |
| U0@0#2 | kitchen | U0 | 0 | 11.4 | 3.75 × 3.05 |
| U0@0#3 | bathroom | U0 | 0 | 7.6 | 2.50 × 3.05 |
| U0@0#0 | entry | U0 | 0 | 5.9 | 4.75 × 1.25 |
| U0@0#4 | bedroom primary | U0 | 0 | 24.7 | 4.75 × 5.20 |
| U0@0#5 | bedroom secondary | U0 | 0 | 14.0 | 4.75 × 2.95 |
| U1@1#0 | entry | U1 | 1 | 5.4 | 1.70 × 3.15 |
| U1@1#2 | kitchen | U1 | 1 | 14.6 | 4.65 × 3.15 |
| U1@1#1 | living | U1 | 1 | 39.7 | 6.35 × 6.25 |
| U1@1#5 | bedroom secondary | U1 | 1 | 12.3 | 4.65 × 2.65 |
| U1@1#4 | bedroom primary | U1 | 1 | 23.0 | 4.65 × 4.95 |
| U1@1#3 | bathroom | U1 | 1 | 8.4 | 4.65 × 1.80 |