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 · privacy-optimal · seed 2

B0006-nsga2-2-1443

NSGA-IID · 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 86 square metres. Dwelling U1 (studio) has 4 rooms totalling 86 square metres. Building footprint 99 square metres; open space 181 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.87, daylight 0.38, privacy 0.93, circulation 0.51, carbon 0.76, cost 0.40.
B0006 · nsga2 · seed 2scale 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 86 square metres. Dwelling U1 (studio) has 4 rooms totalling 86 square metres. Building footprint 99 square metres; open space 181 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.87, daylight 0.38, privacy 0.93, circulation 0.51, carbon 0.76, cost 0.40.

Objective vector

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

density
0.875
daylight
0.383
privacy
0.931
circulation
0.512
carbon
0.763
cost
0.404

Reported quantities

FAR proxy (GFA / lot)
0.70
site utilisation
0.919
gross floor area, m²
198.6
footprint, m²
99.3
carbon proxy, kgCO₂e/m² (A1–A3)
345
cost index / m² (unitless)
2.67
worst habitable room, daylight
0.158
circulation share of GFA
23%
open space, net of parking
65%
courtyard void, m²
0.0
plumbing stacks
3
footprint corners
4
preferred adjacencies met
33%

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
U03BR86.48
U1studio86.44
All 14 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared012.99.55 × 1.35
CORE@1shared circulationshared112.99.55 × 1.35
U0@0#2diningU007.32.25 × 3.25
U0@0#4bathroomU006.52.00 × 3.25
U0@0#7bedroom secondaryU009.84.25 × 2.30
U0@0#6bedroom secondaryU009.34.25 × 2.20
U0@0#0entryU005.54.25 × 1.30
U0@0#5bedroom primaryU0018.05.30 × 3.40
U0@0#3kitchenU0011.75.30 × 2.20
U0@0#1livingU0018.35.30 × 3.45
U1@1#3bathroomU1115.83.40 × 4.65
U1@1#2kitchenU1115.03.40 × 4.40
U1@1#1livingU1140.96.15 × 6.65
U1@1#0entryU1114.86.15 × 2.40

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