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.

B0050 · best infeasible · seed 2

B0050-random-2-44

Random searchB · violates 1 of 17 benchmark constraints (4 violations). Brief B0050

Plan drawing of a duplex on a 14.0 by 17.5 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (2BR) has 6 rooms totalling 65 square metres. Dwelling U1 (2BR) has 6 rooms totalling 65 square metres. Building footprint 73 square metres; open space 174 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.74, daylight 0.59, privacy 0.94, circulation 0.56, carbon 0.70, cost 0.14.
B0050 · random · seed 2scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a duplex on a 14.0 by 17.5 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (2BR) has 6 rooms totalling 65 square metres. Dwelling U1 (2BR) has 6 rooms totalling 65 square metres. Building footprint 73 square metres; open space 174 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.74, daylight 0.59, privacy 0.94, circulation 0.56, carbon 0.70, cost 0.14.

Objective vector

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

density
0.743
daylight
0.594
privacy
0.942
circulation
0.562
carbon
0.697
cost
0.141

Reported quantities

FAR proxy (GFA / lot)
0.60
site utilisation
0.833
gross floor area, m²
146.9
footprint, m²
73.4
carbon proxy, kgCO₂e/m² (A1–A3)
369
cost index / m² (unitless)
3.08
worst habitable room, daylight
0.222
circulation share of GFA
18%
open space, net of parking
70%
courtyard void, m²
0.0
plumbing stacks
3
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 failedshared_circulation clear dim 1.15 < 1.20 mshared_circulation clear dim 1.15 < 1.20 mbathroom clear dim 1.35 < 1.50 m…and 1 more
  • 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
U02BR64.66
U12BR64.66
All 14 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared08.81.15 × 7.65
CORE@1shared circulationshared18.81.15 × 7.65
U0@0#0entryU005.34.20 × 1.25
U0@0#2kitchenU0010.94.20 × 2.60
U0@0#3bathroomU005.11.35 × 3.80
U0@0#5bedroom secondaryU0010.82.85 × 3.80
U0@0#1livingU0017.64.25 × 4.15
U0@0#4bedroom primaryU0014.94.25 × 3.50
U1@1#3bathroomU114.73.45 × 1.35
U1@1#4bedroom primaryU1113.63.45 × 3.95
U1@1#2kitchenU118.13.45 × 2.35
U1@1#5bedroom secondaryU1111.43.80 × 3.00
U1@1#0entryU113.61.20 × 3.00
U1@1#1livingU1123.35.00 × 4.65

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