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.

B0024 · best infeasible · seed 2

B0024-random-2-1199

Random searchB · violates 5 of 17 benchmark constraints (7 violations). Brief B0024

Plan drawing of a adu pair on a 11.7 by 21.2 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 68 square metres. Dwelling U1 (studio) has 4 rooms totalling 68 square metres. Building footprint 77 square metres; open space 166 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, daylight failure, insufficient area. Objective scores, higher is better: density 0.82, daylight 0.58, privacy 0.84, circulation 0.61, carbon 0.71, cost 0.08.
B0024 · random · seed 2scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a adu pair on a 11.7 by 21.2 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 68 square metres. Dwelling U1 (studio) has 4 rooms totalling 68 square metres. Building footprint 77 square metres; open space 166 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, daylight failure, insufficient area. Objective scores, higher is better: density 0.82, daylight 0.58, privacy 0.84, circulation 0.61, carbon 0.71, cost 0.08.

Objective vector

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

density
0.819
daylight
0.583
privacy
0.843
circulation
0.608
carbon
0.710
cost
0.084

Reported quantities

FAR proxy (GFA / lot)
0.62
site utilisation
0.882
gross floor area, m²
154.8
footprint, m²
77.4
carbon proxy, kgCO₂e/m² (A1–A3)
364
cost index / m² (unitless)
3.17
worst habitable room, daylight
0.000
circulation share of GFA
18%
open space, net of parking
62%
courtyard void, m²
0.0
plumbing stacks
4
footprint corners
4
preferred adjacencies met
67%

Benchmark constraints

Benchmark rules, not building code.

  • C01geometry valid passed
  • C02no overlap passed
  • C03within buildable passed
  • C04min room area faileddining 6.3 < 7.0 m^2
  • C05min room dimension failedbathroom clear dim 1.35 < 1.50 mbedroom_secondary clear dim 1.95 < 2.20 m
  • C06max room aspect passed
  • C07min unit area failed3BR 67.8 < 84.0 m^2
  • C08unit connectivity passed
  • C09street access passed
  • C10habitable daylight failedbedroom_primary has 0.00 m of window-capable wall
  • C11required adjacency failedrequired adjacency kitchen-living absentrequired adjacency entry-living absent
  • C12forbidden door passed
  • C13open space passed
  • C14courtyard provision passed
  • C15programme complete passed
  • C16unit contiguity passed
  • C17vertical support passed

Dwellings and rooms

DwellingTypeArea m²Rooms
U03BR67.88
U1studio67.84
All 14 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared09.67.70 × 1.25
CORE@1shared circulationshared19.67.70 × 1.25
U0@0#6bedroom secondaryU007.63.45 × 2.20
U0@0#0entryU004.13.45 × 1.20
U0@0#1livingU0018.63.45 × 5.40
U0@0#2diningU006.32.20 × 2.85
U0@0#3kitchenU005.82.05 × 2.85
U0@0#5bedroom primaryU0011.62.90 × 4.00
U0@0#4bathroomU005.41.35 × 4.00
U0@0#7bedroom secondaryU008.34.25 × 1.95
U1@1#2kitchenU1114.42.20 × 6.55
U1@1#0entryU115.02.20 × 2.25
U1@1#1livingU1136.65.50 × 6.65
U1@1#3bathroomU1111.85.50 × 2.15

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