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.

B0000 · daylight-optimal · seed 0

B0000-nsga2-0-1288

NSGA-IID · meets all 17 benchmark constraints. Brief B0000

Plan drawing of a adu pair on a 16.5 by 19.9 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 71 square metres. Dwelling U1 (1BR) has 5 rooms totalling 71 square metres. Building footprint 85 square metres; open space 244 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.57, daylight 0.82, privacy 0.81, circulation 0.54, carbon 0.74, cost 0.29.
B0000 · nsga2 · seed 0scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a adu pair on a 16.5 by 19.9 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 71 square metres. Dwelling U1 (1BR) has 5 rooms totalling 71 square metres. Building footprint 85 square metres; open space 244 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.57, daylight 0.82, privacy 0.81, circulation 0.54, carbon 0.74, cost 0.29.

Objective vector

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

density
0.569
daylight
0.823
privacy
0.811
circulation
0.536
carbon
0.740
cost
0.292

Reported quantities

FAR proxy (GFA / lot)
0.52
site utilisation
0.720
gross floor area, m²
170.5
footprint, m²
85.3
carbon proxy, kgCO₂e/m² (A1–A3)
354
cost index / m² (unitless)
2.85
worst habitable room, daylight
0.626
circulation share of GFA
23%
open space, net of parking
74%
courtyard void, m²
0.0
plumbing stacks
3
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
U02BR71.36
U11BR71.35
All 13 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared014.01.90 × 7.35
CORE@1shared circulationshared114.01.90 × 7.35
U0@0#5bedroom secondaryU0010.83.10 × 3.50
U0@0#2kitchenU0011.03.15 × 3.50
U0@0#4bedroom primaryU0017.94.65 × 3.85
U0@0#3bathroomU006.21.60 × 3.85
U0@0#0entryU005.53.45 × 1.60
U0@0#1livingU0019.83.45 × 5.75
U1@1#4bedroom primaryU1117.23.15 × 5.45
U1@1#0entryU116.03.15 × 1.90
U1@1#3bathroomU116.03.10 × 1.95
U1@1#2kitchenU116.73.45 × 1.95
U1@1#1livingU1135.46.55 × 5.40

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