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.

B0035 · best infeasible · seed 2

B0035-anneal-2-1124

Simulated annealingC · violates 2 of 17 benchmark constraints (4 violations). Brief B0035

Plan drawing of a triplex on a 14.9 by 24.4 metre lot, 2 storeys, 3 dwellings, 20 rooms. Dwelling U0 (2BR) has 6 rooms totalling 54 square metres. Dwelling U1 (2BR) has 6 rooms totalling 56 square metres. Dwelling U2 (2BR) has 6 rooms totalling 109 square metres. Building footprint 120 square metres; open space 254 square metres. This design is infeasible; failing categories: bad proportion, insufficient area. Objective scores, higher is better: density 0.93, daylight 0.52, privacy 0.82, circulation 0.68, carbon 0.77, cost 0.35.
B0035 · anneal · seed 2scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a triplex on a 14.9 by 24.4 metre lot, 2 storeys, 3 dwellings, 20 rooms. Dwelling U0 (2BR) has 6 rooms totalling 54 square metres. Dwelling U1 (2BR) has 6 rooms totalling 56 square metres. Dwelling U2 (2BR) has 6 rooms totalling 109 square metres. Building footprint 120 square metres; open space 254 square metres. This design is infeasible; failing categories: bad proportion, insufficient area. Objective scores, higher is better: density 0.93, daylight 0.52, privacy 0.82, circulation 0.68, carbon 0.77, cost 0.35.

Objective vector

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

density
0.929
daylight
0.523
privacy
0.816
circulation
0.681
carbon
0.767
cost
0.354

Reported quantities

FAR proxy (GFA / lot)
0.66
site utilisation
0.954
gross floor area, m²
239.4
footprint, m²
119.7
carbon proxy, kgCO₂e/m² (A1–A3)
344
cost index / m² (unitless)
2.75
worst habitable room, daylight
0.244
circulation share of GFA
14%
open space, net of parking
67%
courtyard void, m²
0.0
plumbing stacks
4
footprint corners
4
preferred adjacencies met
33%

Benchmark constraints

Benchmark rules, not building code.

  • C01geometry valid passed
  • C02no overlap passed
  • C03within buildable passed
  • C04min room area passed
  • C05min room dimension failedshared_circulation clear dim 1.05 < 1.20 mshared_circulation clear dim 1.05 < 1.20 m
  • C06max room aspect passed
  • C07min unit area failed2BR 53.7 < 63.0 m^22BR 55.7 < 63.0 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

DwellingTypeArea m²Rooms
U02BR53.76
U12BR55.76
U22BR109.36
All 20 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared010.39.85 × 1.05
CORE@1shared circulationshared110.39.85 × 1.05
U1@0#5bedroom secondaryU1010.43.65 × 2.85
U1@0#3bathroomU105.72.00 × 2.85
U1@0#4bedroom primaryU1015.85.65 × 2.80
U1@0#0entryU102.61.25 × 2.10
U1@0#2kitchenU106.22.95 × 2.10
U1@0#1livingU1014.94.20 × 3.55
U0@0#5bedroom secondaryU0015.36.25 × 2.45
U0@0#4bedroom primaryU0011.73.90 × 3.00
U0@0#2kitchenU007.02.35 × 3.00
U0@0#3bathroomU003.41.55 × 2.20
U0@0#0entryU004.52.05 × 2.20
U0@0#1livingU0011.73.60 × 3.25
U2@1#0entryU216.04.80 × 1.25
U2@1#1livingU2139.44.80 × 8.20
U2@1#3bathroomU217.94.80 × 1.65
U2@1#4bedroom primaryU2116.25.05 × 3.20
U2@1#5bedroom secondaryU2124.25.05 × 4.80
U2@1#2kitchenU2115.75.05 × 3.10

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