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.

B0045 · best infeasible · seed 1

B0045-nsga2-1-1319

NSGA-IID · violates 1 of 17 benchmark constraints (1 violations). Brief B0045

Plan drawing of a fourplex on a 17.0 by 26.0 metre lot, 2 storeys, 4 dwellings, 26 rooms. Dwelling U0 (2BR) has 6 rooms totalling 73 square metres. Dwelling U1 (2BR) has 6 rooms totalling 74 square metres. Dwelling U2 (2BR) has 6 rooms totalling 72 square metres. Dwelling U3 (2BR) has 6 rooms totalling 76 square metres. Building footprint 166 square metres; open space 273 square metres. This design is infeasible; failing categories: daylight failure. Objective scores, higher is better: density 0.81, daylight 0.58, privacy 0.80, circulation 0.61, carbon 0.80, cost 0.45.
B0045 · nsga2 · seed 1scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a fourplex on a 17.0 by 26.0 metre lot, 2 storeys, 4 dwellings, 26 rooms. Dwelling U0 (2BR) has 6 rooms totalling 73 square metres. Dwelling U1 (2BR) has 6 rooms totalling 74 square metres. Dwelling U2 (2BR) has 6 rooms totalling 72 square metres. Dwelling U3 (2BR) has 6 rooms totalling 76 square metres. Building footprint 166 square metres; open space 273 square metres. This design is infeasible; failing categories: daylight failure. Objective scores, higher is better: density 0.81, daylight 0.58, privacy 0.80, circulation 0.61, carbon 0.80, cost 0.45.

Objective vector

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

density
0.807
daylight
0.580
privacy
0.805
circulation
0.606
carbon
0.801
cost
0.455

Reported quantities

FAR proxy (GFA / lot)
0.75
site utilisation
0.875
gross floor area, m²
332.8
footprint, m²
166.4
carbon proxy, kgCO₂e/m² (A1–A3)
332
cost index / m² (unitless)
2.60
worst habitable room, daylight
0.000
circulation share of GFA
19%
open space, net of parking
62%
courtyard void, m²
0.0
plumbing stacks
5
footprint corners
4
preferred adjacencies met
50%

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 failedliving has 0.00 m of window-capable wall
  • 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
U02BR73.36
U12BR73.96
U22BR71.66
U32BR75.66
All 26 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared019.312.85 × 1.50
CORE@1shared circulationshared119.312.85 × 1.50
U0@0#1livingU0030.23.45 × 8.75
U0@0#3bathroomU005.31.95 × 2.70
U0@0#0entryU004.01.50 × 2.70
U0@0#2kitchenU009.42.95 × 3.20
U0@0#4bedroom primaryU0012.72.95 × 4.30
U0@0#5bedroom secondaryU0011.72.95 × 3.95
U1@0#4bedroom primaryU1014.13.40 × 4.15
U1@0#2kitchenU1013.43.40 × 3.95
U1@0#3bathroomU106.72.00 × 3.35
U1@0#0entryU104.71.40 × 3.35
U1@0#5bedroom secondaryU1011.03.05 × 3.60
U1@0#1livingU1023.93.05 × 7.85
U3@1#1livingU3126.13.35 × 7.80
U3@1#0entryU316.21.70 × 3.65
U3@1#3bathroomU316.01.65 × 3.65
U3@1#2kitchenU3115.63.25 × 4.80
U3@1#5bedroom secondaryU318.43.25 × 2.60
U3@1#4bedroom primaryU3113.23.25 × 4.05
U2@1#5bedroom secondaryU218.73.10 × 2.80
U2@1#1livingU2121.23.10 × 6.85
U2@1#2kitchenU215.63.10 × 1.80
U2@1#4bedroom primaryU2118.43.15 × 5.85
U2@1#3bathroomU216.33.15 × 2.00
U2@1#0entryU2111.33.15 × 3.60

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