standard tier · 72 briefs · 1,368 runs · results db2e24e

CityFormGen

Generative and optimisation methods for middle housing, compared under matched compute

RESEARCH GENERATIVE-DESIGN BENCHMARK - NOT CONSTRUCTION DOCUMENTATION OR CODE CERTIFICATION.

B0030 · density-optimal · seed 2

B0030-anneal-2-603

Simulated annealingC · meets all 17 benchmark constraints. Brief B0030

Plan drawing of a adu pair on a 12.9 by 18.0 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 70 square metres. Dwelling U1 (1BR) has 5 rooms totalling 70 square metres. Building footprint 81 square metres; open space 153 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 1.00, daylight 0.64, privacy 0.90, circulation 0.52, carbon 0.72, cost 0.34.
B0030 · anneal · seed 2scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a adu pair on a 12.9 by 18.0 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 70 square metres. Dwelling U1 (1BR) has 5 rooms totalling 70 square metres. Building footprint 81 square metres; open space 153 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 1.00, daylight 0.64, privacy 0.90, circulation 0.52, carbon 0.72, cost 0.34.

Objective vector

Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.

density
1.000
daylight
0.635
privacy
0.897
circulation
0.515
carbon
0.721
cost
0.340

Reported quantities

FAR proxy (GFA / lot)
0.70
site utilisation
1.000
gross floor area, m²
161.7
footprint, m²
80.8
carbon proxy, kgCO₂e/m² (A1–A3)
360
cost index / m² (unitless)
2.77
worst habitable room, daylight
0.331
circulation share of GFA
30%
open space, net of parking
58%
courtyard void, m²
0.0
plumbing stacks
2
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 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

DwellingTypeArea m²Rooms
U02BR69.76
U11BR69.75
All 13 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared011.21.30 × 8.60
CORE@1shared circulationshared111.21.30 × 8.60
U0@0#2kitchenU007.94.05 × 1.95
U0@0#5bedroom secondaryU0014.24.05 × 3.50
U0@0#4bedroom primaryU0012.84.05 × 3.15
U0@0#1livingU0014.24.05 × 3.50
U0@0#0entryU0014.24.05 × 3.50
U0@0#3bathroomU006.54.05 × 1.60
U1@1#3bathroomU1110.53.70 × 2.85
U1@1#1livingU1121.33.70 × 5.75
U1@1#4bedroom primaryU1118.04.40 × 4.10
U1@1#0entryU1111.24.40 × 2.55
U1@1#2kitchenU118.64.40 × 1.95

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