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.

B0066 · privacy-optimal · seed 2

B0066-nsga2-2-1473

NSGA-IID · meets all 17 benchmark constraints. Brief B0066

Plan drawing of a adu pair on a 12.2 by 21.7 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 66 square metres. Dwelling U1 (1BR) has 5 rooms totalling 66 square metres. Building footprint 77 square metres; open space 177 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.91, daylight 0.42, privacy 0.93, circulation 0.55, carbon 0.71, cost 0.41.
B0066 · nsga2 · seed 2scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a adu pair on a 12.2 by 21.7 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 66 square metres. Dwelling U1 (1BR) has 5 rooms totalling 66 square metres. Building footprint 77 square metres; open space 177 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.91, daylight 0.42, privacy 0.93, circulation 0.55, carbon 0.71, cost 0.41.

Objective vector

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

density
0.908
daylight
0.419
privacy
0.932
circulation
0.554
carbon
0.709
cost
0.407

Reported quantities

FAR proxy (GFA / lot)
0.58
site utilisation
0.940
gross floor area, m²
154.0
footprint, m²
77.0
carbon proxy, kgCO₂e/m² (A1–A3)
365
cost index / m² (unitless)
2.67
worst habitable room, daylight
0.216
circulation share of GFA
19%
open space, net of parking
65%
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
U02BR66.26
U11BR66.25
All 13 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared010.88.65 × 1.25
CORE@1shared circulationshared110.88.65 × 1.25
U0@0#0entryU003.31.35 × 2.45
U0@0#2kitchenU007.12.90 × 2.45
U0@0#1livingU0022.14.25 × 5.20
U0@0#3bathroomU006.01.55 × 3.85
U0@0#5bedroom secondaryU0011.02.85 × 3.85
U0@0#4bedroom primaryU0016.74.40 × 3.80
U1@1#3bathroomU1111.15.55 × 2.00
U1@1#2kitchenU1114.45.55 × 2.60
U1@1#1livingU1116.95.55 × 3.05
U1@1#4bedroom primaryU1119.73.10 × 6.35
U1@1#0entryU114.03.10 × 1.30

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