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.

B0041 · best infeasible · seed 0

B0041-heuristic-0

HeuristicA · violates 1 of 17 benchmark constraints (2 violations). Brief B0041

Plan drawing of a triplex on a 15.9 by 25.9 metre lot, 2 storeys, 3 dwellings, 20 rooms. Dwelling U0 (2BR) has 6 rooms totalling 98 square metres. Dwelling U1 (2BR) has 6 rooms totalling 82 square metres. Dwelling U2 (2BR) has 6 rooms totalling 180 square metres. Building footprint 199 square metres; open space 222 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.82, daylight 0.53, privacy 0.81, circulation 0.67, carbon 0.85, cost 0.82.
B0041 · heuristic · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a triplex on a 15.9 by 25.9 metre lot, 2 storeys, 3 dwellings, 20 rooms. Dwelling U0 (2BR) has 6 rooms totalling 98 square metres. Dwelling U1 (2BR) has 6 rooms totalling 82 square metres. Dwelling U2 (2BR) has 6 rooms totalling 180 square metres. Building footprint 199 square metres; open space 222 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.82, daylight 0.53, privacy 0.81, circulation 0.67, carbon 0.85, cost 0.82.

Objective vector

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

density
0.819
daylight
0.534
privacy
0.812
circulation
0.670
carbon
0.855
cost
0.819

Reported quantities

FAR proxy (GFA / lot)
0.97
site utilisation
0.882
gross floor area, m²
398.8
footprint, m²
199.4
carbon proxy, kgCO₂e/m² (A1–A3)
312
cost index / m² (unitless)
2.03
worst habitable room, daylight
0.228
circulation share of GFA
13%
open space, net of parking
52%
courtyard void, m²
0.0
plumbing stacks
1
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 passed
  • C06max room aspect failedliving aspect 2.83 > 2.60bedroom_primary aspect 2.41 > 2.40
  • 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
U02BR97.96
U12BR81.96
U22BR179.86
All 20 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared019.61.25 × 15.70
CORE@1shared circulationshared119.61.25 × 15.70
U0@0#2kitchenU0018.93.40 × 5.55
U0@0#3bathroomU006.13.40 × 1.80
U0@0#0entryU004.13.40 × 1.20
U0@0#1livingU0031.63.70 × 8.55
U0@0#4bedroom primaryU0012.44.35 × 2.85
U0@0#5bedroom secondaryU0024.84.35 × 5.70
U1@0#0entryU103.73.10 × 1.20
U1@0#3bathroomU104.73.10 × 1.50
U1@0#2kitchenU1013.83.10 × 4.45
U1@0#1livingU1025.73.60 × 7.15
U1@0#4bedroom primaryU1023.54.75 × 4.95
U1@0#5bedroom secondaryU1010.44.75 × 2.20
U2@1#2kitchenU2117.72.75 × 6.45
U2@1#3bathroomU2122.02.75 × 8.00
U2@1#0entryU213.42.75 × 1.25
U2@1#1livingU2187.15.55 × 15.70
U2@1#4bedroom primaryU2123.93.15 × 7.60
U2@1#5bedroom secondaryU2125.53.15 × 8.10

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