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.

B0018 · best infeasible · seed 0

B0018-heuristic-0

HeuristicA · violates 1 of 17 benchmark constraints (1 violations). Brief B0018

Plan drawing of a adu pair on a 17.5 by 21.8 metre lot, 2 storeys, 2 dwellings, 15 rooms. Dwelling U0 (3BR) has 8 rooms totalling 116 square metres. Dwelling U1 (1BR) has 5 rooms totalling 116 square metres. Building footprint 133 square metres; open space 255 square metres. This design is infeasible; failing categories: adjacency violation. Objective scores, higher is better: density 0.84, daylight 0.58, privacy 0.84, circulation 0.65, carbon 0.82, cost 0.73.
B0018 · heuristic · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a adu pair on a 17.5 by 21.8 metre lot, 2 storeys, 2 dwellings, 15 rooms. Dwelling U0 (3BR) has 8 rooms totalling 116 square metres. Dwelling U1 (1BR) has 5 rooms totalling 116 square metres. Building footprint 133 square metres; open space 255 square metres. This design is infeasible; failing categories: adjacency violation. Objective scores, higher is better: density 0.84, daylight 0.58, privacy 0.84, circulation 0.65, carbon 0.82, cost 0.73.

Objective vector

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

density
0.838
daylight
0.583
privacy
0.843
circulation
0.651
carbon
0.820
cost
0.730

Reported quantities

FAR proxy (GFA / lot)
0.70
site utilisation
0.895
gross floor area, m²
265.2
footprint, m²
132.6
carbon proxy, kgCO₂e/m² (A1–A3)
325
cost index / m² (unitless)
2.17
worst habitable room, daylight
0.325
circulation share of GFA
15%
open space, net of parking
61%
courtyard void, m²
0.0
plumbing stacks
1
footprint corners
4
preferred adjacencies met
25%

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 passed
  • C07min unit area passed
  • C08unit connectivity passed
  • C09street access passed
  • C10habitable daylight passed
  • C11required adjacency failedrequired 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
U03BR115.88
U11BR115.85
All 15 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared016.81.65 × 10.20
CORE@1shared circulationshared116.81.65 × 10.20
U0@0#3kitchenU0014.82.35 × 6.30
U0@0#4bathroomU006.02.35 × 2.55
U0@0#0entryU003.22.35 × 1.35
U0@0#1livingU0019.23.20 × 6.00
U0@0#2diningU0013.43.20 × 4.20
U0@0#5bedroom primaryU0031.35.80 × 5.40
U0@0#6bedroom secondaryU0014.55.80 × 2.50
U0@0#7bedroom secondaryU0013.35.80 × 2.30
U1@1#2kitchenU1112.02.30 × 5.20
U1@1#3bathroomU118.12.30 × 3.50
U1@1#0entryU113.52.30 × 1.50
U1@1#1livingU1142.34.15 × 10.20
U1@1#4bedroom primaryU1150.04.90 × 10.20

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