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.

B0061 · best infeasible · seed 1

B0061-nsga2-1-1470

NSGA-IID · violates 1 of 17 benchmark constraints (1 violations). Brief B0061

Plan drawing of a courtyard on a 21.1 by 25.6 metre lot, 2 storeys, 5 dwellings, 27 rooms. Dwelling U0 (studio) has 4 rooms totalling 33 square metres. Dwelling U1 (1BR) has 5 rooms totalling 62 square metres. Dwelling U2 (1BR) has 5 rooms totalling 55 square metres. Dwelling U3 (1BR) has 5 rooms totalling 62 square metres. Dwelling U4 (2BR) has 6 rooms totalling 88 square metres. Building footprint 179 square metres; open space 354 square metres. This design is infeasible; failing categories: insufficient area. Objective scores, higher is better: density 0.52, daylight 0.52, privacy 0.80, circulation 0.58, carbon 0.72, cost 0.19.
B0061 · nsga2 · seed 1scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a courtyard on a 21.1 by 25.6 metre lot, 2 storeys, 5 dwellings, 27 rooms. Dwelling U0 (studio) has 4 rooms totalling 33 square metres. Dwelling U1 (1BR) has 5 rooms totalling 62 square metres. Dwelling U2 (1BR) has 5 rooms totalling 55 square metres. Dwelling U3 (1BR) has 5 rooms totalling 62 square metres. Dwelling U4 (2BR) has 6 rooms totalling 88 square metres. Building footprint 179 square metres; open space 354 square metres. This design is infeasible; failing categories: insufficient area. Objective scores, higher is better: density 0.52, daylight 0.52, privacy 0.80, circulation 0.58, carbon 0.72, cost 0.19.

Objective vector

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

density
0.519
daylight
0.525
privacy
0.795
circulation
0.575
carbon
0.721
cost
0.187

Reported quantities

FAR proxy (GFA / lot)
0.66
site utilisation
0.687
gross floor area, m²
357.8
footprint, m²
178.9
carbon proxy, kgCO₂e/m² (A1–A3)
360
cost index / m² (unitless)
3.01
worst habitable room, daylight
0.209
circulation share of GFA
23%
open space, net of parking
67%
courtyard void, m²
44.0
plumbing stacks
8
footprint corners
8
preferred adjacencies met
75%

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 failedstudio 32.6 < 33.0 m^2
  • 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
U0studio32.64
U11BR62.15
U21BR55.15
U31BR62.15
U42BR87.76
All 27 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared029.017.60 × 1.65
CORE@1shared circulationshared129.017.60 × 1.65
U2@0#3bathroomU205.02.80 × 1.80
U2@0#4bedroom primaryU2014.12.80 × 5.05
U2@0#1livingU2024.75.25 × 4.70
U2@0#0entryU202.81.30 × 2.15
U2@0#2kitchenU208.53.95 × 2.15
U0@0#1livingU0014.63.60 × 4.05
U0@0#0entryU002.21.35 × 1.60
U0@0#3bathroomU005.03.10 × 1.60
U0@0#2kitchenU0010.94.45 × 2.45
U4@1#3bathroomU4110.63.60 × 2.95
U4@1#5bedroom secondaryU4111.03.60 × 3.05
U4@1#4bedroom primaryU4117.63.60 × 4.90
U4@1#0entryU415.81.55 × 3.75
U4@1#2kitchenU4110.92.90 × 3.75
U4@1#1livingU4131.84.45 × 7.15
U1@0#4bedroom primaryU1013.32.80 × 4.75
U1@0#2kitchenU1017.22.80 × 6.15
U1@0#3bathroomU107.02.90 × 2.40
U1@0#0entryU106.22.90 × 2.15
U1@0#1livingU1018.42.90 × 6.35
U3@1#1livingU3120.03.45 × 5.80
U3@1#4bedroom primaryU3117.63.45 × 5.10
U3@1#0entryU315.52.25 × 2.45
U3@1#2kitchenU3110.82.25 × 4.80
U3@1#3bathroomU318.22.25 × 3.65

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