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 · density-optimal · seed 1

B0006-sketch-1-1009

Random sketch + repairF′ · meets all 17 benchmark constraints. 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 88 square metres. Dwelling U1 (studio) has 4 rooms totalling 88 square metres. Building footprint 105 square metres; open space 176 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.96, daylight 0.55, privacy 0.85, circulation 0.53, carbon 0.77, cost 0.37.
B0006 · sketch · seed 1scale bar 5 m · north arrow top right✓ FEASIBLE

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 88 square metres. Dwelling U1 (studio) has 4 rooms totalling 88 square metres. Building footprint 105 square metres; open space 176 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.96, daylight 0.55, privacy 0.85, circulation 0.53, carbon 0.77, cost 0.37.

Objective vector

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

density
0.962
daylight
0.545
privacy
0.853
circulation
0.534
carbon
0.773
cost
0.367

Reported quantities

FAR proxy (GFA / lot)
0.74
site utilisation
0.975
gross floor area, m²
210.9
footprint, m²
105.5
carbon proxy, kgCO₂e/m² (A1–A3)
342
cost index / m² (unitless)
2.73
worst habitable room, daylight
0.222
circulation share of GFA
30%
open space, net of parking
63%
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 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
U03BR88.08
U1studio88.04
All 14 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared017.51.65 × 10.60
CORE@1shared circulationshared117.51.65 × 10.60
U0@0#2diningU0012.62.55 × 4.95
U0@0#3kitchenU009.41.90 × 4.95
U0@0#0entryU005.84.45 × 1.30
U0@0#7bedroom secondaryU0019.44.45 × 4.35
U0@0#6bedroom secondaryU008.53.85 × 2.20
U0@0#1livingU0014.23.85 × 3.70
U0@0#5bedroom primaryU0011.73.85 × 3.05
U0@0#4bathroomU006.43.85 × 1.65
U1@1#0entryU1122.34.80 × 4.65
U1@1#2kitchenU1116.33.50 × 4.65
U1@1#3bathroomU1122.93.85 × 5.95
U1@1#1livingU1126.54.45 × 5.95

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