B0031 · circulation-optimal · seed 2
B0031-heuristic_nsga2-2-1153
Heuristic-seeded NSGA-IIA+D · violates 1 of 17 benchmark constraints (1 violations). Brief B0031
Plan drawing of a courtyard on a 16.2 by 25.5 metre lot, 2 storeys, 4 dwellings, 25 rooms. Dwelling U0 (1BR) has 5 rooms totalling 66 square metres. Dwelling U1 (2BR) has 6 rooms totalling 65 square metres. Dwelling U2 (2BR) has 6 rooms totalling 66 square metres. Dwelling U3 (2BR) has 6 rooms totalling 65 square metres. Building footprint 155 square metres; open space 256 square metres. This design is infeasible; failing categories: open space failure. Objective scores, higher is better: density 0.75, daylight 0.38, privacy 0.67, circulation 0.63, carbon 0.71, cost 0.33.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.754
- daylight
- 0.380
- privacy
- 0.675
- circulation
- 0.629
- carbon
- 0.708
- cost
- 0.335
Reported quantities
- FAR proxy (GFA / lot)
- 0.75
- site utilisation
- 0.840
- gross floor area, m²
- 310.7
- footprint, m²
- 155.4
- carbon proxy, kgCO₂e/m² (A1–A3)
- 365
- cost index / m² (unitless)
- 2.78
- worst habitable room, daylight
- 0.182
- circulation share of GFA
- 20%
- open space, net of parking
- 62%
- courtyard void, m²
- 24.0
- plumbing stacks
- 4
- footprint corners
- 8
- 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 failedcourtyard narrowest extent 2.0 m
- C15programme complete passed
- C16unit contiguity passed
- C17vertical support passed
Dwellings and rooms
| Dwelling | Type | Area m² | Rooms |
|---|---|---|---|
| U0 | 1BR | 66.1 | 5 |
| U1 | 2BR | 64.9 | 6 |
| U2 | 2BR | 66.1 | 6 |
| U3 | 2BR | 64.9 | 6 |
All 25 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 24.3 | 12.80 × 1.90 |
| CORE@1 | shared circulation | shared | 1 | 24.3 | 12.80 × 1.90 |
| U1@0#3 | bathroom | U1 | 0 | 5.6 | 3.10 × 1.80 |
| U1@0#0 | entry | U1 | 0 | 4.2 | 3.10 × 1.35 |
| U1@0#2 | kitchen | U1 | 0 | 7.7 | 2.45 × 3.15 |
| U1@0#1 | living | U1 | 0 | 16.1 | 5.55 × 2.90 |
| U1@0#4 | bedroom primary | U1 | 0 | 16.4 | 5.55 × 2.95 |
| U1@0#5 | bedroom secondary | U1 | 0 | 15.0 | 5.55 × 2.70 |
| U3@1#2 | kitchen | U3 | 1 | 6.0 | 2.45 × 2.45 |
| U3@1#0 | entry | U3 | 1 | 3.3 | 1.35 × 2.45 |
| U3@1#3 | bathroom | U3 | 1 | 4.3 | 1.75 × 2.45 |
| U3@1#1 | living | U3 | 1 | 17.5 | 5.55 × 3.15 |
| U3@1#4 | bedroom primary | U3 | 1 | 17.5 | 5.55 × 3.15 |
| U3@1#5 | bedroom secondary | U3 | 1 | 16.4 | 5.55 × 2.95 |
| U0@0#3 | bathroom | U0 | 0 | 4.8 | 2.80 × 1.70 |
| U0@0#0 | entry | U0 | 0 | 3.8 | 2.80 × 1.35 |
| U0@0#2 | kitchen | U0 | 0 | 8.7 | 2.85 × 3.05 |
| U0@0#1 | living | U0 | 0 | 16.7 | 5.65 × 2.95 |
| U0@0#4 | bedroom primary | U0 | 0 | 32.2 | 5.65 × 5.70 |
| U2@1#0 | entry | U2 | 1 | 3.8 | 1.20 × 3.15 |
| U2@1#3 | bathroom | U2 | 1 | 5.0 | 1.60 × 3.15 |
| U2@1#2 | kitchen | U2 | 1 | 9.0 | 2.85 × 3.15 |
| U2@1#1 | living | U2 | 1 | 16.4 | 5.65 × 2.90 |
| U2@1#4 | bedroom primary | U2 | 1 | 16.7 | 5.65 × 2.95 |
| U2@1#5 | bedroom secondary | U2 | 1 | 15.3 | 5.65 × 2.70 |