B0063 · density-optimal · seed 1
B0063-sketch-1-1078
Random sketch + repairF′ · meets all 17 benchmark constraints. Brief B0063
Plan drawing of a fourplex on a 14.6 by 26.9 metre lot, 2 storeys, 4 dwellings, 24 rooms. Dwelling U0 (1BR) has 5 rooms totalling 75 square metres. Dwelling U1 (1BR) has 5 rooms totalling 96 square metres. Dwelling U2 (2BR) has 6 rooms totalling 69 square metres. Dwelling U3 (2BR) has 6 rooms totalling 103 square metres. Building footprint 186 square metres; open space 202 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.95, daylight 0.42, privacy 0.87, circulation 0.63, carbon 0.82, cost 0.58.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.949
- daylight
- 0.419
- privacy
- 0.870
- circulation
- 0.626
- carbon
- 0.824
- cost
- 0.583
Reported quantities
- FAR proxy (GFA / lot)
- 0.95
- site utilisation
- 0.967
- gross floor area, m²
- 372.3
- footprint, m²
- 186.1
- carbon proxy, kgCO₂e/m² (A1–A3)
- 323
- cost index / m² (unitless)
- 2.40
- worst habitable room, daylight
- 0.159
- circulation share of GFA
- 17%
- open space, net of parking
- 49%
- 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 | 1BR | 75.5 | 5 |
| U1 | 1BR | 95.9 | 5 |
| U2 | 2BR | 68.7 | 6 |
| U3 | 2BR | 102.7 | 6 |
All 24 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 14.8 | 11.35 × 1.30 |
| CORE@1 | shared circulation | shared | 1 | 14.8 | 11.35 × 1.30 |
| U1@0#2 | kitchen | U1 | 0 | 21.5 | 6.05 × 3.55 |
| U1@0#4 | bedroom primary | U1 | 0 | 29.6 | 6.05 × 4.90 |
| U1@0#0 | entry | U1 | 0 | 7.7 | 5.30 × 1.45 |
| U1@0#1 | living | U1 | 0 | 17.8 | 5.30 × 3.35 |
| U1@0#3 | bathroom | U1 | 0 | 19.3 | 5.30 × 3.65 |
| U0@0#3 | bathroom | U0 | 0 | 7.1 | 3.95 × 1.80 |
| U0@0#1 | living | U0 | 0 | 19.2 | 3.95 × 4.85 |
| U0@0#0 | entry | U0 | 0 | 4.0 | 1.20 × 3.35 |
| U0@0#4 | bedroom primary | U0 | 0 | 20.8 | 6.20 × 3.35 |
| U0@0#2 | kitchen | U0 | 0 | 24.4 | 7.40 × 3.30 |
| U3@1#0 | entry | U3 | 1 | 16.7 | 6.80 × 2.45 |
| U3@1#1 | living | U3 | 1 | 26.2 | 6.80 × 3.85 |
| U3@1#2 | kitchen | U3 | 1 | 29.9 | 6.80 × 4.40 |
| U3@1#4 | bedroom primary | U3 | 1 | 12.3 | 2.80 × 4.40 |
| U3@1#3 | bathroom | U3 | 1 | 7.7 | 1.75 × 4.40 |
| U3@1#5 | bedroom secondary | U3 | 1 | 9.9 | 2.25 × 4.40 |
| U2@1#4 | bedroom primary | U2 | 1 | 15.3 | 3.30 × 4.65 |
| U2@1#0 | entry | U2 | 1 | 5.8 | 1.25 × 4.65 |
| U2@1#1 | living | U2 | 1 | 14.8 | 4.55 × 3.25 |
| U2@1#2 | kitchen | U2 | 1 | 19.3 | 4.55 × 4.25 |
| U2@1#5 | bedroom secondary | U2 | 1 | 8.6 | 2.90 × 2.95 |
| U2@1#3 | bathroom | U2 | 1 | 4.9 | 1.65 × 2.95 |