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.

B0035 · best infeasible · seed 0

B0035-heuristic-0

HeuristicA · violates 3 of 17 benchmark constraints (5 violations). Brief B0035

Plan drawing of a triplex on a 14.9 by 24.4 metre lot, 2 storeys, 3 dwellings, 20 rooms. Dwelling U0 (2BR) has 6 rooms totalling 54 square metres. Dwelling U1 (2BR) has 6 rooms totalling 57 square metres. Dwelling U2 (2BR) has 6 rooms totalling 111 square metres. Building footprint 125 square metres; open space 242 square metres. This design is infeasible; failing categories: bad proportion, insufficient area. Objective scores, higher is better: density 1.00, daylight 0.60, privacy 0.80, circulation 0.64, carbon 0.77, cost 0.52.
B0035 · heuristic · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a triplex on a 14.9 by 24.4 metre lot, 2 storeys, 3 dwellings, 20 rooms. Dwelling U0 (2BR) has 6 rooms totalling 54 square metres. Dwelling U1 (2BR) has 6 rooms totalling 57 square metres. Dwelling U2 (2BR) has 6 rooms totalling 111 square metres. Building footprint 125 square metres; open space 242 square metres. This design is infeasible; failing categories: bad proportion, insufficient area. Objective scores, higher is better: density 1.00, daylight 0.60, privacy 0.80, circulation 0.64, carbon 0.77, cost 0.52.

Objective vector

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

density
1.000
daylight
0.600
privacy
0.803
circulation
0.641
carbon
0.770
cost
0.518

Reported quantities

FAR proxy (GFA / lot)
0.69
site utilisation
1.000
gross floor area, m²
250.9
footprint, m²
125.5
carbon proxy, kgCO₂e/m² (A1–A3)
343
cost index / m² (unitless)
2.50
worst habitable room, daylight
0.304
circulation share of GFA
15%
open space, net of parking
65%
courtyard void, m²
0.0
plumbing stacks
2
footprint corners
4
preferred adjacencies met
0%

Benchmark constraints

Benchmark rules, not building code.

  • C01geometry valid passed
  • C02no overlap passed
  • C03within buildable passed
  • C04min room area passed
  • C05min room dimension failedshared_circulation clear dim 1.15 < 1.20 mshared_circulation clear dim 1.15 < 1.20 m
  • C06max room aspect failedliving aspect 2.89 > 2.60
  • C07min unit area failed2BR 54.3 < 63.0 m^22BR 57.0 < 63.0 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
U02BR54.36
U12BR57.06
U22BR111.36
All 20 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared014.11.15 × 12.30
CORE@1shared circulationshared114.11.15 × 12.30
U1@0#2kitchenU109.22.55 × 3.60
U1@0#3bathroomU103.82.55 × 1.50
U1@0#0entryU103.12.55 × 1.20
U1@0#1livingU1019.53.10 × 6.30
U1@0#4bedroom primaryU1011.13.40 × 3.25
U1@0#5bedroom secondaryU1010.43.40 × 3.05
U0@0#0entryU003.22.70 × 1.20
U0@0#3bathroomU004.22.70 × 1.55
U0@0#2kitchenU008.82.70 × 3.25
U0@0#1livingU0017.42.90 × 6.00
U0@0#4bedroom primaryU0013.13.45 × 3.80
U0@0#5bedroom secondaryU007.63.45 × 2.20
U2@1#2kitchenU2112.62.05 × 6.15
U2@1#3bathroomU2110.12.05 × 4.95
U2@1#0entryU212.52.05 × 1.20
U2@1#1livingU2152.34.25 × 12.30
U2@1#4bedroom primaryU2117.52.75 × 6.35
U2@1#5bedroom secondaryU2116.42.75 × 5.95

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