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.

B0054 · knee point · seed 2

B0054-sketch-2-1176

Random sketch + repairF′ · meets all 17 benchmark constraints. Brief B0054

Plan drawing of a adu pair on a 12.8 by 23.5 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 116 square metres. Dwelling U1 (1BR) has 5 rooms totalling 116 square metres. Building footprint 128 square metres; open space 180 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.97, daylight 0.48, privacy 0.88, circulation 0.70, carbon 0.82, cost 0.72.
B0054 · sketch · seed 2scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a adu pair on a 12.8 by 23.5 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 116 square metres. Dwelling U1 (1BR) has 5 rooms totalling 116 square metres. Building footprint 128 square metres; open space 180 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.97, daylight 0.48, privacy 0.88, circulation 0.70, carbon 0.82, cost 0.72.

Objective vector

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

density
0.970
daylight
0.484
privacy
0.879
circulation
0.702
carbon
0.819
cost
0.720

Reported quantities

FAR proxy (GFA / lot)
0.85
site utilisation
0.980
gross floor area, m²
256.1
footprint, m²
128.1
carbon proxy, kgCO₂e/m² (A1–A3)
325
cost index / m² (unitless)
2.18
worst habitable room, daylight
0.226
circulation share of GFA
12%
open space, net of parking
47%
courtyard void, m²
0.0
plumbing stacks
1
footprint corners
4
preferred adjacencies met
100%

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
U02BR116.36
U11BR116.35
All 13 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared011.89.05 × 1.30
CORE@1shared circulationshared111.89.05 × 1.30
U0@0#3bathroomU0045.79.05 × 5.05
U0@0#4bedroom primaryU0019.46.05 × 3.20
U0@0#0entryU004.03.20 × 1.25
U0@0#5bedroom secondaryU0010.73.20 × 3.35
U0@0#1livingU0013.12.85 × 4.60
U0@0#2kitchenU0023.43.00 × 7.80
U1@1#3bathroomU1111.43.40 × 3.35
U1@1#0entryU114.01.20 × 3.35
U1@1#1livingU1114.94.45 × 3.35
U1@1#4bedroom primaryU1145.14.75 × 9.50
U1@1#2kitchenU1140.94.30 × 9.50

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