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.

B0042 · best infeasible · seed 0

B0042-heuristic-0~r0

HeuristicA · violates 1 of 17 benchmark constraints (1 violations). Brief B0042

Plan drawing of a adu pair on a 14.8 by 21.3 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 88 square metres. Dwelling U1 (studio) has 4 rooms totalling 88 square metres. Building footprint 104 square metres; open space 223 square metres. This design is infeasible; failing categories: adjacency violation. Objective scores, higher is better: density 1.00, daylight 0.65, privacy 0.84, circulation 0.57, carbon 0.78, cost 0.52.
B0042 · heuristic · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a adu pair on a 14.8 by 21.3 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 88 square metres. Dwelling U1 (studio) has 4 rooms totalling 88 square metres. Building footprint 104 square metres; open space 223 square metres. This design is infeasible; failing categories: adjacency violation. Objective scores, higher is better: density 1.00, daylight 0.65, privacy 0.84, circulation 0.57, carbon 0.78, cost 0.52.

Objective vector

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

density
1.000
daylight
0.650
privacy
0.837
circulation
0.566
carbon
0.777
cost
0.524

Reported quantities

FAR proxy (GFA / lot)
0.66
site utilisation
1.000
gross floor area, m²
207.4
footprint, m²
103.7
carbon proxy, kgCO₂e/m² (A1–A3)
340
cost index / m² (unitless)
2.49
worst habitable room, daylight
0.358
circulation share of GFA
21%
open space, net of parking
57%
courtyard void, m²
0.0
plumbing stacks
2
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 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
U03BR87.88
U1studio87.84
All 14 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared015.81.65 × 9.60
CORE@1shared circulationshared115.81.65 × 9.60
U0@0#3kitchenU009.11.90 × 4.80
U0@0#4bathroomU004.81.90 × 2.55
U0@0#0entryU004.31.90 × 2.25
U0@0#1livingU0023.53.45 × 6.80
U0@0#2diningU009.73.45 × 2.80
U0@0#5bedroom primaryU0015.03.80 × 3.95
U0@0#6bedroom secondaryU0011.23.80 × 2.95
U0@0#7bedroom secondaryU0010.33.80 × 2.70
U1@1#2kitchenU1119.74.10 × 4.80
U1@1#3bathroomU1112.14.10 × 2.95
U1@1#0entryU117.64.10 × 1.85
U1@1#1livingU1148.55.05 × 9.60

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