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.

B0060 · best infeasible · seed 0

B0060-random-0-636

Random searchB · violates 4 of 17 benchmark constraints (5 violations). Brief B0060

Plan drawing of a adu pair on a 12.6 by 19.3 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 77 square metres. Dwelling U1 (studio) has 4 rooms totalling 77 square metres. Building footprint 89 square metres; open space 154 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, insufficient area. Objective scores, higher is better: density 0.83, daylight 0.51, privacy 0.88, circulation 0.59, carbon 0.74, cost 0.31.
B0060 · random · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a adu pair on a 12.6 by 19.3 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 77 square metres. Dwelling U1 (studio) has 4 rooms totalling 77 square metres. Building footprint 89 square metres; open space 154 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, insufficient area. Objective scores, higher is better: density 0.83, daylight 0.51, privacy 0.88, circulation 0.59, carbon 0.74, cost 0.31.

Objective vector

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

density
0.828
daylight
0.511
privacy
0.875
circulation
0.587
carbon
0.738
cost
0.312

Reported quantities

FAR proxy (GFA / lot)
0.73
site utilisation
0.888
gross floor area, m²
177.7
footprint, m²
88.8
carbon proxy, kgCO₂e/m² (A1–A3)
354
cost index / m² (unitless)
2.82
worst habitable room, daylight
0.145
circulation share of GFA
20%
open space, net of parking
57%
courtyard void, m²
0.0
plumbing stacks
3
footprint corners
4
preferred adjacencies met
33%

Benchmark constraints

Benchmark rules, not building code.

  • C01geometry valid passed
  • C02no overlap passed
  • C03within buildable passed
  • C04min room area passed
  • C05min room dimension failedbathroom clear dim 1.45 < 1.50 m
  • C06max room aspect failedentry aspect 4.31 > 4.00
  • C07min unit area failed3BR 77.1 < 84.0 m^2
  • C08unit connectivity passed
  • C09street access passed
  • C10habitable daylight passed
  • C11required adjacency failedrequired adjacency entry-living absentrequired adjacency kitchen-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
U03BR77.18
U1studio77.14
All 14 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared011.81.25 × 9.40
CORE@1shared circulationshared111.81.25 × 9.40
U0@0#1livingU0017.44.20 × 4.15
U0@0#7bedroom secondaryU009.44.20 × 2.25
U0@0#4bathroomU004.31.45 × 3.00
U0@0#2diningU008.32.75 × 3.00
U0@0#5bedroom primaryU0016.24.00 × 4.05
U0@0#0entryU004.84.00 × 1.20
U0@0#3kitchenU007.51.80 × 4.15
U0@0#6bedroom secondaryU009.12.20 × 4.15
U1@1#3bathroomU117.82.60 × 3.00
U1@1#2kitchenU1116.62.60 × 6.40
U1@1#1livingU1145.45.60 × 8.10
U1@1#0entryU117.35.60 × 1.30

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