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.

B0044 · density-optimal · seed 0

B0044-anneal-0-1488

Simulated annealingC · meets all 17 benchmark constraints. Brief B0044

Plan drawing of a duplex on a 13.8 by 20.7 metre lot, 2 storeys, 2 dwellings, 12 rooms. Dwelling U0 (1BR) has 5 rooms totalling 70 square metres. Dwelling U1 (1BR) has 5 rooms totalling 70 square metres. Building footprint 79 square metres; open space 208 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 1.00, daylight 0.83, privacy 0.75, circulation 0.65, carbon 0.73, cost 0.24.
B0044 · anneal · seed 0scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a duplex on a 13.8 by 20.7 metre lot, 2 storeys, 2 dwellings, 12 rooms. Dwelling U0 (1BR) has 5 rooms totalling 70 square metres. Dwelling U1 (1BR) has 5 rooms totalling 70 square metres. Building footprint 79 square metres; open space 208 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 1.00, daylight 0.83, privacy 0.75, circulation 0.65, carbon 0.73, cost 0.24.

Objective vector

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

density
1.000
daylight
0.829
privacy
0.753
circulation
0.651
carbon
0.731
cost
0.237

Reported quantities

FAR proxy (GFA / lot)
0.56
site utilisation
1.000
gross floor area, m²
158.6
footprint, m²
79.3
carbon proxy, kgCO₂e/m² (A1–A3)
357
cost index / m² (unitless)
2.93
worst habitable room, daylight
0.630
circulation share of GFA
17%
open space, net of parking
72%
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

DwellingTypeArea m²Rooms
U01BR69.75
U11BR69.75
All 12 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared09.61.25 × 7.70
CORE@1shared circulationshared19.61.25 × 7.70
U0@0#1livingU0015.54.25 × 3.65
U0@0#4bedroom primaryU0017.24.25 × 4.05
U0@0#0entryU006.23.10 × 2.00
U0@0#3bathroomU003.41.70 × 2.00
U0@0#2kitchenU0027.44.80 × 5.70
U1@1#1livingU1126.44.30 × 6.15
U1@1#0entryU112.21.45 × 1.55
U1@1#3bathroomU114.42.85 × 1.55
U1@1#4bedroom primaryU1122.14.75 × 4.65
U1@1#2kitchenU1114.54.75 × 3.05

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