B0070 · cost-optimal · seed 2
B0070-anneal-2-749
Simulated annealingC · meets all 17 benchmark constraints. Brief B0070
Plan drawing of a rowhouse on a 25.5 by 27.5 metre lot, 2 storeys, 4 dwellings, 36 rooms. Dwelling U0 (2BR) has 9 rooms totalling 170 square metres. Dwelling U1 (2BR) has 9 rooms totalling 134 square metres. Dwelling U2 (2BR) has 9 rooms totalling 183 square metres. Dwelling U3 (2BR) has 9 rooms totalling 141 square metres. Building footprint 314 square metres; open space 384 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.92, daylight 0.64, privacy 0.88, circulation 0.50, carbon 0.89, cost 0.72.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.918
- daylight
- 0.640
- privacy
- 0.876
- circulation
- 0.497
- carbon
- 0.886
- cost
- 0.721
Reported quantities
- FAR proxy (GFA / lot)
- 0.90
- site utilisation
- 0.947
- gross floor area, m²
- 628.3
- footprint, m²
- 314.2
- carbon proxy, kgCO₂e/m² (A1–A3)
- 301
- cost index / m² (unitless)
- 2.18
- worst habitable room, daylight
- 0.204
- circulation share of GFA
- 27%
- open space, net of parking
- 55%
- courtyard void, m²
- 0.0
- plumbing stacks
- 6
- footprint corners
- 4
- preferred adjacencies met
- 63%
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 | 169.7 | 9 |
| U1 | 2BR | 133.9 | 9 |
| U2 | 2BR | 183.3 | 9 |
| U3 | 2BR | 141.4 | 9 |
All 36 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| STAIR:U0@0 | circulation | U0 | 0 | 14.7 | 1.75 × 8.40 |
| STAIR:U0@1 | circulation | U0 | 1 | 14.7 | 1.75 × 8.40 |
| U0@0#0 | entry | U0 | 0 | 41.2 | 4.90 × 8.40 |
| U0@0#3 | bathroom | U0 | 0 | 6.4 | 3.45 × 1.85 |
| U0@0#2 | kitchen | U0 | 0 | 7.9 | 3.45 × 2.30 |
| U0@0#1 | living | U0 | 0 | 14.7 | 3.45 × 4.25 |
| U0@1#6 | bedroom secondary | U0 | 1 | 35.7 | 4.25 × 8.40 |
| U0@1#7 | bathroom | U0 | 1 | 9.4 | 4.10 × 2.30 |
| U0@1#5 | bedroom primary | U0 | 1 | 25.0 | 4.10 × 6.10 |
| STAIR:U1@0 | circulation | U1 | 0 | 14.9 | 2.30 × 6.50 |
| STAIR:U1@1 | circulation | U1 | 1 | 14.9 | 2.30 × 6.50 |
| U1@0#3 | bathroom | U1 | 0 | 4.5 | 2.75 × 1.65 |
| U1@0#0 | entry | U1 | 0 | 5.1 | 2.75 × 1.85 |
| U1@0#2 | kitchen | U1 | 0 | 8.3 | 2.75 × 3.00 |
| U1@0#1 | living | U1 | 0 | 34.1 | 5.25 × 6.50 |
| U1@1#7 | bathroom | U1 | 1 | 4.4 | 2.50 × 1.75 |
| U1@1#6 | bedroom secondary | U1 | 1 | 11.9 | 2.50 × 4.75 |
| U1@1#5 | bedroom primary | U1 | 1 | 35.8 | 5.50 × 6.50 |
| STAIR:U2@0 | circulation | U2 | 0 | 13.3 | 1.50 × 8.90 |
| STAIR:U2@1 | circulation | U2 | 1 | 13.3 | 1.50 × 8.90 |
| U2@0#2 | kitchen | U2 | 0 | 17.3 | 3.40 × 5.10 |
| U2@0#0 | entry | U2 | 0 | 7.3 | 3.40 × 2.15 |
| U2@0#3 | bathroom | U2 | 0 | 5.6 | 3.40 × 1.65 |
| U2@0#1 | living | U2 | 0 | 48.1 | 5.40 × 8.90 |
| U2@1#5 | bedroom primary | U2 | 1 | 33.1 | 5.10 × 6.50 |
| U2@1#7 | bathroom | U2 | 1 | 12.2 | 5.10 × 2.40 |
| U2@1#6 | bedroom secondary | U2 | 1 | 32.9 | 3.70 × 8.90 |
| STAIR:U3@0 | circulation | U3 | 0 | 10.2 | 1.45 × 7.00 |
| STAIR:U3@1 | circulation | U3 | 1 | 10.2 | 1.45 × 7.00 |
| U3@0#2 | kitchen | U3 | 0 | 13.9 | 3.20 × 4.35 |
| U3@0#3 | bathroom | U3 | 0 | 8.5 | 3.20 × 2.65 |
| U3@0#0 | entry | U3 | 0 | 11.4 | 5.45 × 2.10 |
| U3@0#1 | living | U3 | 0 | 26.7 | 5.45 × 4.90 |
| U3@1#6 | bedroom secondary | U3 | 1 | 8.1 | 3.50 × 2.30 |
| U3@1#7 | bathroom | U3 | 1 | 16.4 | 3.50 × 4.70 |
| U3@1#5 | bedroom primary | U3 | 1 | 36.0 | 5.15 × 7.00 |