B0028 · circulation-optimal · seed 1
B0028-cpsat-1-0
CP-SATE · meets all 17 benchmark constraints. Brief B0028
Plan drawing of a rowhouse on a 22.2 by 26.7 metre lot, 2 storeys, 3 dwellings, 27 rooms. Dwelling U0 (2BR) has 9 rooms totalling 126 square metres. Dwelling U1 (2BR) has 9 rooms totalling 151 square metres. Dwelling U2 (2BR) has 9 rooms totalling 120 square metres. Building footprint 276 square metres; open space 308 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.55, daylight 0.66, privacy 0.84, circulation 0.55, carbon 0.77, cost 0.46.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.553
- daylight
- 0.659
- privacy
- 0.837
- circulation
- 0.549
- carbon
- 0.775
- cost
- 0.456
Reported quantities
- FAR proxy (GFA / lot)
- 0.67
- site utilisation
- 0.709
- gross floor area, m²
- 397.0
- footprint, m²
- 275.5
- carbon proxy, kgCO₂e/m² (A1–A3)
- 341
- cost index / m² (unitless)
- 2.59
- worst habitable room, daylight
- 0.427
- circulation share of GFA
- 22%
- open space, net of parking
- 54%
- courtyard void, m²
- 0.0
- plumbing stacks
- 6
- footprint corners
- 4
- preferred adjacencies met
- 83%
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 | 126.0 | 9 |
| U1 | 2BR | 150.8 | 9 |
| U2 | 2BR | 120.3 | 9 |
All 27 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| U0@0#0 | entry | U0 | 0 | 46.8 | 5.50 × 8.50 |
| U0@0#1 | living | U0 | 0 | 18.0 | 3.00 × 6.00 |
| U0@0#2 | kitchen | U0 | 0 | 18.0 | 3.00 × 6.00 |
| U0@0#3 | bathroom | U0 | 0 | 15.0 | 3.00 × 5.00 |
| STAIR:U0@0 | circulation | U0 | 0 | 2.5 | 2.50 × 1.00 |
| U0@1#5 | bedroom primary | U0 | 1 | 12.0 | 3.00 × 4.00 |
| U0@1#6 | bedroom secondary | U0 | 1 | 7.5 | 2.50 × 3.00 |
| U0@1#7 | bathroom | U0 | 1 | 3.8 | 2.50 × 1.50 |
| STAIR:U0@1 | circulation | U0 | 1 | 2.5 | 2.50 × 1.00 |
| U1@0#0 | entry | U1 | 0 | 9.0 | 1.50 × 6.00 |
| U1@0#1 | living | U1 | 0 | 38.0 | 4.00 × 9.50 |
| U1@0#2 | kitchen | U1 | 0 | 12.0 | 2.00 × 6.00 |
| U1@0#3 | bathroom | U1 | 0 | 18.8 | 2.50 × 7.50 |
| STAIR:U1@0 | circulation | U1 | 0 | 5.0 | 1.00 × 5.00 |
| U1@1#5 | bedroom primary | U1 | 1 | 12.0 | 3.00 × 4.00 |
| U1@1#6 | bedroom secondary | U1 | 1 | 47.3 | 4.50 × 10.50 |
| U1@1#7 | bathroom | U1 | 1 | 3.8 | 2.50 × 1.50 |
| STAIR:U1@1 | circulation | U1 | 1 | 5.0 | 1.00 × 5.00 |
| U2@0#0 | entry | U2 | 0 | 9.0 | 1.50 × 6.00 |
| U2@0#1 | living | U2 | 0 | 40.0 | 4.00 × 10.00 |
| U2@0#2 | kitchen | U2 | 0 | 25.5 | 3.00 × 8.50 |
| U2@0#3 | bathroom | U2 | 0 | 13.5 | 3.00 × 4.50 |
| STAIR:U2@0 | circulation | U2 | 0 | 4.5 | 1.00 × 4.50 |
| U2@1#5 | bedroom primary | U2 | 1 | 12.0 | 3.00 × 4.00 |
| U2@1#6 | bedroom secondary | U2 | 1 | 7.5 | 3.00 × 2.50 |
| U2@1#7 | bathroom | U2 | 1 | 3.8 | 1.50 × 2.50 |
| STAIR:U2@1 | circulation | U2 | 1 | 4.5 | 1.00 × 4.50 |