B0056 · knee point · seed 2
B0056-cpsat-2-12
CP-SATE · meets all 17 benchmark constraints. Brief B0056
Plan drawing of a duplex on a 13.5 by 23.4 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (1BR) has 5 rooms totalling 100 square metres. Dwelling U1 (2BR) has 6 rooms totalling 94 square metres. Building footprint 105 square metres; open space 212 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.87, daylight 0.70, privacy 0.90, circulation 0.73, carbon 0.78, cost 0.43.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.867
- daylight
- 0.699
- privacy
- 0.899
- circulation
- 0.735
- carbon
- 0.775
- cost
- 0.429
Reported quantities
- FAR proxy (GFA / lot)
- 0.64
- site utilisation
- 0.914
- gross floor area, m²
- 203.3
- footprint, m²
- 105.0
- carbon proxy, kgCO₂e/m² (A1–A3)
- 341
- cost index / m² (unitless)
- 2.63
- worst habitable room, daylight
- 0.568
- circulation share of GFA
- 7%
- open space, net of parking
- 67%
- courtyard void, m²
- 0.0
- plumbing stacks
- 3
- 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 | 100.5 | 5 |
| U1 | 2BR | 93.8 | 6 |
All 13 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| U0@0#0 | entry | U0 | 0 | 2.3 | 1.50 × 1.50 |
| U0@0#1 | living | U0 | 0 | 12.3 | 3.50 × 3.50 |
| U0@0#2 | kitchen | U0 | 0 | 38.5 | 5.50 × 7.00 |
| U0@0#3 | bathroom | U0 | 0 | 7.0 | 2.00 × 3.50 |
| U0@0#4 | bedroom primary | U0 | 0 | 40.5 | 4.50 × 9.00 |
| U1@1#0 | entry | U1 | 1 | 3.0 | 2.00 × 1.50 |
| U1@1#1 | living | U1 | 1 | 52.5 | 7.00 × 7.50 |
| U1@1#2 | kitchen | U1 | 1 | 6.0 | 2.00 × 3.00 |
| U1@1#3 | bathroom | U1 | 1 | 3.8 | 1.50 × 2.50 |
| U1@1#4 | bedroom primary | U1 | 1 | 21.0 | 3.00 × 7.00 |
| U1@1#5 | bedroom secondary | U1 | 1 | 7.5 | 2.50 × 3.00 |
| CORE@0 | shared circulation | shared | 0 | 4.5 | 3.00 × 1.50 |
| CORE@1 | shared circulation | shared | 1 | 4.5 | 3.00 × 1.50 |