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.

B0006 · best infeasible · seed 1

B0006-random-1-1355

Random searchB · violates 3 of 17 benchmark constraints (5 violations). Brief B0006

Plan drawing of a adu pair on a 12.8 by 22.2 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 81 square metres. Dwelling U1 (studio) has 4 rooms totalling 81 square metres. Building footprint 92 square metres; open space 191 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, insufficient area. Objective scores, higher is better: density 0.77, daylight 0.41, privacy 0.84, circulation 0.63, carbon 0.75, cost 0.25.
B0006 · random · seed 1scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a adu pair on a 12.8 by 22.2 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 81 square metres. Dwelling U1 (studio) has 4 rooms totalling 81 square metres. Building footprint 92 square metres; open space 191 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, insufficient area. Objective scores, higher is better: density 0.77, daylight 0.41, privacy 0.84, circulation 0.63, carbon 0.75, cost 0.25.

Objective vector

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

density
0.766
daylight
0.414
privacy
0.842
circulation
0.631
carbon
0.746
cost
0.249

Reported quantities

FAR proxy (GFA / lot)
0.65
site utilisation
0.848
gross floor area, m²
183.4
footprint, m²
91.7
carbon proxy, kgCO₂e/m² (A1–A3)
351
cost index / m² (unitless)
2.91
worst habitable room, daylight
0.117
circulation share of GFA
17%
open space, net of parking
68%
courtyard void, m²
0.0
plumbing stacks
4
footprint corners
4
preferred adjacencies met
67%

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 failed3BR 80.6 < 84.0 m^2
  • C08unit connectivity passed
  • C09street access passed
  • C10habitable daylight passed
  • C11required adjacency failedrequired adjacency entry-living absentrequired adjacency kitchen-living absent
  • C12forbidden door passed
  • C13open space passed
  • C14courtyard provision passed
  • C15programme complete passed
  • C16unit contiguity passed
  • C17vertical support passed

Dwellings and rooms

DwellingTypeArea m²Rooms
U03BR80.68
U1studio80.64
All 14 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared011.09.60 × 1.15
CORE@1shared circulationshared111.09.60 × 1.15
U0@0#4bathroomU003.31.85 × 1.80
U0@0#0entryU003.31.85 × 1.80
U0@0#3kitchenU006.83.70 × 1.85
U0@0#2diningU009.43.70 × 2.55
U0@0#6bedroom secondaryU008.13.70 × 2.20
U0@0#7bedroom secondaryU0014.25.90 × 2.40
U0@0#5bedroom primaryU0017.15.90 × 2.90
U0@0#1livingU0018.35.90 × 3.10
U1@1#1livingU1146.25.50 × 8.40
U1@1#0entryU115.34.10 × 1.30
U1@1#3bathroomU119.64.10 × 2.35
U1@1#2kitchenU1119.54.10 × 4.75

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