easy · flats · 2 storeys
B0036: a adu pair on a 16.3 × 19.9 m lot
2 dwellings, 11 rooms. The pooled front across all methods holds 495 nondominated designs.
Requirements
- Lot
- 16.3 × 19.9 m (324 m²)
- Street side faces
- 60° (0 = north)
- Setbacks front / rear / left / right
- 5.8 / 4.1 / 1 / 1.9 m
- Storeys × height
- 2 × 2.8 m
- Shared core
- yes (access gallery + stair)
- Open space, net of parking
- ≥ 28% of the lot
- Parking spaces
- 1
- Courtyard
- not required
- Tightness (programme / buildable volume)
- 0.441
Programme
| Dwelling | Type | Storey | Min m² | Rooms |
|---|---|---|---|---|
| U0 | 2BR | 0 | 63 | entry, living, kitchen, bathroom, bedroom primary, bedroom secondary |
| U1 | 1BR | 1 | 46 | entry, living, kitchen, bathroom, bedroom primary |
Required contacts: entry–living, kitchen–living. Doors forbidden between: entry–bedroom_primary, entry–bedroom_secondary, kitchen–bathroom.
Results by method
| Method | Solved | HV | Evals | s | Notes |
|---|---|---|---|---|---|
| Heuristic | 100% | 0.218 | 265 | 0.8 | |
| Random search | 100% | 0.117 | 1500 | 3.1 | |
| Simulated annealing | 100% | 0.201 | 1500 | 4.0 | |
| NSGA-II | 100% | 0.218 | 1500 | 5.7 | |
| CP-SAT | 100% | 0.205 | 49 | 6.8 | |
| Random sketch + repair | 100% | 0.138 | 1500 | 4.3 | repair collapse |
| Heuristic-seeded NSGA-II | 100% | 0.043 | 1500 | 3.7 | repair collapse |
Mean over 1 seeds (the heuristic is deterministic: one run).
Representative designs from the pooled front
Each is best on one objective, or the knee: the most balanced trade-off. None is best overall.
Pareto explorer
Loading designs…
Convergence on this brief
Archive hypervolume against evaluations, mean over seeds.
What stopped designs here
| method | C04 | C05 | C06 | C07 | C08 | C09 | C10 | C11 |
|---|---|---|---|---|---|---|---|---|
| Heuristic | 1% | 26% | 29% | – | – | 0% | 3% | 1% |
| Random search | 21% | 83% | 67% | 13% | 14% | 70% | 41% | 82% |
| Simulated annealing | 22% | 60% | 48% | 9% | 7% | 33% | 20% | 31% |
| NSGA-II | 14% | 46% | 32% | 7% | 8% | 28% | 17% | 28% |
| Random sketch + repair | 34% | 49% | 68% | 5% | 9% | 19% | 25% | 25% |
| Heuristic-seeded NSGA-II | 29% | 87% | 63% | 7% | 3% | 23% | 14% | 20% |