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 0

B0066-heuristic-0

HeuristicA · violates 1 of 17 benchmark constraints (2 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 65 square metres. Dwelling U1 (1BR) has 5 rooms totalling 65 square metres. Building footprint 75 square metres; open space 186 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.87, daylight 0.57, privacy 0.77, circulation 0.65, carbon 0.71, cost 0.39.
B0066 · heuristic · seed 0scale 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 65 square metres. Dwelling U1 (1BR) has 5 rooms totalling 65 square metres. Building footprint 75 square metres; open space 186 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.87, daylight 0.57, privacy 0.77, circulation 0.65, carbon 0.71, cost 0.39.

Objective vector

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

density
0.872
daylight
0.574
privacy
0.772
circulation
0.645
carbon
0.705
cost
0.391

Reported quantities

FAR proxy (GFA / lot)
0.57
site utilisation
0.917
gross floor area, m²
150.2
footprint, m²
75.1
carbon proxy, kgCO₂e/m² (A1–A3)
366
cost index / m² (unitless)
2.69
worst habitable room, daylight
0.219
circulation share of GFA
16%
open space, net of parking
66%
courtyard void, m²
0.0
plumbing stacks
1
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 failedliving aspect 2.70 > 2.60bedroom_primary aspect 2.75 > 2.40
  • 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
U02BR65.26
U11BR65.25
All 13 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared09.98.25 × 1.20
CORE@1shared circulationshared19.98.25 × 1.20
U0@0#2kitchenU009.75.10 × 1.90
U0@0#3bathroomU003.71.95 × 1.90
U0@0#0entryU002.31.20 × 1.90
U0@0#1livingU0026.48.25 × 3.20
U0@0#4bedroom primaryU0013.64.85 × 2.80
U0@0#5bedroom secondaryU009.53.40 × 2.80
U1@1#2kitchenU117.84.20 × 1.85
U1@1#3bathroomU115.32.85 × 1.85
U1@1#0entryU112.21.20 × 1.85
U1@1#1livingU1125.28.25 × 3.05
U1@1#4bedroom primaryU1124.88.25 × 3.00

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