B0027 · best infeasible · seed 2
B0027-sketch-2-1185
Random sketch + repairF′ · violates 3 of 17 benchmark constraints (5 violations). Brief B0027
Plan drawing of a fourplex on a 13.2 by 26.9 metre lot, 2 storeys, 4 dwellings, 22 rooms. Dwelling U0 (studio) has 4 rooms totalling 38 square metres. Dwelling U1 (1BR) has 5 rooms totalling 79 square metres. Dwelling U2 (1BR) has 5 rooms totalling 45 square metres. Dwelling U3 (2BR) has 6 rooms totalling 72 square metres. Building footprint 156 square metres; open space 191 square metres. This design is infeasible; failing categories: bad proportion, insufficient area. Objective scores, higher is better: density 0.97, daylight 0.45, privacy 0.82, circulation 0.54, carbon 0.79, cost 0.47.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.970
- daylight
- 0.447
- privacy
- 0.823
- circulation
- 0.540
- carbon
- 0.792
- cost
- 0.469
Reported quantities
- FAR proxy (GFA / lot)
- 0.88
- site utilisation
- 0.980
- gross floor area, m²
- 312.8
- footprint, m²
- 156.4
- carbon proxy, kgCO₂e/m² (A1–A3)
- 335
- cost index / m² (unitless)
- 2.57
- worst habitable room, daylight
- 0.129
- circulation share of GFA
- 35%
- open space, net of parking
- 56%
- courtyard void, m²
- 0.0
- plumbing stacks
- 4
- footprint corners
- 4
- preferred adjacencies met
- 100%
Benchmark constraints
Benchmark rules, not building code.
- C01geometry valid passed
- C02no overlap passed
- C03within buildable passed
- C04min room area failedliving 10.9 < 11.0 m^2
- C05min room dimension passed
- C06max room aspect failedliving aspect 2.61 > 2.60bedroom_primary aspect 2.57 > 2.40bathroom aspect 3.52 > 3.00
- C07min unit area failed1BR 45.4 < 46.0 m^2
- 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 | studio | 38.4 | 4 |
| U1 | 1BR | 79.3 | 5 |
| U2 | 1BR | 45.4 | 5 |
| U3 | 2BR | 72.3 | 6 |
All 22 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 38.7 | 2.45 × 15.80 |
| CORE@1 | shared circulation | shared | 1 | 38.7 | 2.45 × 15.80 |
| U1@0#2 | kitchen | U1 | 0 | 8.7 | 3.95 × 2.20 |
| U1@0#0 | entry | U1 | 0 | 7.7 | 3.50 × 2.20 |
| U1@0#1 | living | U1 | 0 | 21.2 | 7.45 × 2.85 |
| U1@0#3 | bathroom | U1 | 0 | 18.5 | 3.30 × 5.60 |
| U1@0#4 | bedroom primary | U1 | 0 | 23.2 | 4.15 × 5.60 |
| U0@0#2 | kitchen | U0 | 0 | 7.1 | 3.75 × 1.90 |
| U0@0#1 | living | U0 | 0 | 12.2 | 3.75 × 3.25 |
| U0@0#0 | entry | U0 | 0 | 7.0 | 1.35 × 5.15 |
| U0@0#3 | bathroom | U0 | 0 | 12.1 | 2.35 × 5.15 |
| U3@1#4 | bedroom primary | U3 | 1 | 21.6 | 7.45 × 2.90 |
| U3@1#3 | bathroom | U3 | 1 | 8.4 | 5.45 × 1.55 |
| U3@1#2 | kitchen | U3 | 1 | 10.1 | 5.45 × 1.85 |
| U3@1#5 | bedroom secondary | U3 | 1 | 7.7 | 2.25 × 3.40 |
| U3@1#1 | living | U3 | 1 | 10.9 | 3.20 × 3.40 |
| U3@1#0 | entry | U3 | 1 | 13.6 | 2.00 × 6.80 |
| U2@1#3 | bathroom | U2 | 1 | 7.6 | 1.90 × 4.00 |
| U2@1#4 | bedroom primary | U2 | 1 | 11.0 | 2.75 × 4.00 |
| U2@1#1 | living | U2 | 1 | 11.2 | 2.80 × 4.00 |
| U2@1#2 | kitchen | U2 | 1 | 12.3 | 5.85 × 2.10 |
| U2@1#0 | entry | U2 | 1 | 3.4 | 1.60 × 2.10 |