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.

B0036 · daylight-optimal · seed 0

B0036-nsga2-0-1306

NSGA-IID · meets all 17 benchmark constraints. Brief B0036

Plan drawing of a adu pair on a 16.3 by 19.9 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 82 square metres. Dwelling U1 (1BR) has 5 rooms totalling 83 square metres. Building footprint 97 square metres; open space 232 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.58, daylight 0.89, privacy 0.88, circulation 0.55, carbon 0.77, cost 0.40.
B0036 · nsga2 · seed 0scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a adu pair on a 16.3 by 19.9 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 82 square metres. Dwelling U1 (1BR) has 5 rooms totalling 83 square metres. Building footprint 97 square metres; open space 232 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.58, daylight 0.89, privacy 0.88, circulation 0.55, carbon 0.77, cost 0.40.

Objective vector

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

density
0.581
daylight
0.890
privacy
0.884
circulation
0.554
carbon
0.765
cost
0.397

Reported quantities

FAR proxy (GFA / lot)
0.60
site utilisation
0.728
gross floor area, m²
195.0
footprint, m²
97.5
carbon proxy, kgCO₂e/m² (A1–A3)
345
cost index / m² (unitless)
2.68
worst habitable room, daylight
0.715
circulation share of GFA
22%
open space, net of parking
65%
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
U02BR82.56
U11BR82.55
All 13 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared015.02.00 × 7.50
CORE@1shared circulationshared115.02.00 × 7.50
U0@0#0entryU005.33.45 × 1.55
U0@0#3bathroomU007.43.45 × 2.15
U0@0#4bedroom primaryU0013.13.45 × 3.80
U0@0#1livingU0024.57.55 × 3.25
U0@0#5bedroom secondaryU0014.93.50 × 4.25
U0@0#2kitchenU0017.24.05 × 4.25
U1@1#2kitchenU1126.76.60 × 4.05
U1@1#0entryU117.62.20 × 3.45
U1@1#1livingU1115.24.40 × 3.45
U1@1#3bathroomU1114.74.40 × 3.35
U1@1#4bedroom primaryU1118.34.40 × 4.15

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