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.

B0066 · best infeasible · seed 1

B0066-random-1-1186

Random searchB · violates 2 of 17 benchmark constraints (3 violations). Brief B0066

Plan drawing of a adu pair on a 12.2 by 21.7 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 61 square metres. Dwelling U1 (1BR) has 5 rooms totalling 61 square metres. Building footprint 71 square metres; open space 186 square metres. This design is infeasible; failing categories: bad proportion, insufficient area. Objective scores, higher is better: density 0.79, daylight 0.43, privacy 0.89, circulation 0.59, carbon 0.69, cost 0.00.
B0066 · random · seed 1scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a adu pair on a 12.2 by 21.7 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 61 square metres. Dwelling U1 (1BR) has 5 rooms totalling 61 square metres. Building footprint 71 square metres; open space 186 square metres. This design is infeasible; failing categories: bad proportion, insufficient area. Objective scores, higher is better: density 0.79, daylight 0.43, privacy 0.89, circulation 0.59, carbon 0.69, cost 0.00.

Objective vector

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

density
0.787
daylight
0.429
privacy
0.891
circulation
0.585
carbon
0.689
cost
0.000

Reported quantities

FAR proxy (GFA / lot)
0.53
site utilisation
0.861
gross floor area, m²
141.1
footprint, m²
70.5
carbon proxy, kgCO₂e/m² (A1–A3)
372
cost index / m² (unitless)
3.32
worst habitable room, daylight
0.206
circulation share of GFA
19%
open space, net of parking
67%
courtyard void, m²
0.0
plumbing stacks
4
footprint corners
4
preferred adjacencies met
50%

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 1.15 < 1.20 mshared_circulation clear dim 1.15 < 1.20 m
  • C06max room aspect passed
  • C07min unit area failed2BR 60.7 < 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
U02BR60.76
U11BR60.75
All 13 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared09.88.55 × 1.15
CORE@1shared circulationshared19.88.55 × 1.15
U0@0#2kitchenU006.62.70 × 2.45
U0@0#0entryU003.61.45 × 2.45
U0@0#1livingU0019.34.15 × 4.65
U0@0#4bedroom primaryU0012.34.40 × 2.80
U0@0#5bedroom secondaryU0012.34.40 × 2.80
U0@0#3bathroomU006.64.40 × 1.50
U1@1#1livingU1125.75.35 × 4.80
U1@1#2kitchenU119.24.00 × 2.30
U1@1#0entryU113.11.35 × 2.30
U1@1#3bathroomU116.63.20 × 2.05
U1@1#4bedroom primaryU1116.23.20 × 5.05

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