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.

B0048 · best infeasible · seed 0

B0048-heuristic-0

HeuristicA · violates 2 of 17 benchmark constraints (2 violations). Brief B0048

Plan drawing of a adu pair on a 14.2 by 18.4 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 80 square metres. Dwelling U1 (studio) has 4 rooms totalling 80 square metres. Building footprint 90 square metres; open space 170 square metres. This design is infeasible; failing categories: adjacency violation, insufficient area. Objective scores, higher is better: density 0.96, daylight 0.63, privacy 0.84, circulation 0.64, carbon 0.75, cost 0.52.
B0048 · heuristic · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a adu pair on a 14.2 by 18.4 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 80 square metres. Dwelling U1 (studio) has 4 rooms totalling 80 square metres. Building footprint 90 square metres; open space 170 square metres. This design is infeasible; failing categories: adjacency violation, insufficient area. Objective scores, higher is better: density 0.96, daylight 0.63, privacy 0.84, circulation 0.64, carbon 0.75, cost 0.52.

Objective vector

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

density
0.958
daylight
0.626
privacy
0.839
circulation
0.642
carbon
0.748
cost
0.517

Reported quantities

FAR proxy (GFA / lot)
0.69
site utilisation
0.973
gross floor area, m²
179.3
footprint, m²
89.6
carbon proxy, kgCO₂e/m² (A1–A3)
351
cost index / m² (unitless)
2.50
worst habitable room, daylight
0.146
circulation share of GFA
15%
open space, net of parking
66%
courtyard void, m²
0.0
plumbing stacks
1
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 failed3BR 79.7 < 84.0 m^2
  • 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
U03BR79.78
U1studio79.74
All 14 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared010.01.20 × 8.30
CORE@1shared circulationshared110.01.20 × 8.30
U0@0#3kitchenU0014.72.85 × 5.15
U0@0#4bathroomU005.32.85 × 1.85
U0@0#0entryU003.72.85 × 1.30
U0@0#1livingU0018.93.20 × 5.90
U0@0#2diningU007.73.20 × 2.40
U0@0#5bedroom primaryU0012.13.55 × 3.40
U0@0#6bedroom secondaryU009.13.55 × 2.55
U0@0#7bedroom secondaryU008.33.55 × 2.35
U1@1#2kitchenU1114.63.15 × 4.65
U1@1#3bathroomU117.73.15 × 2.45
U1@1#0entryU113.83.15 × 1.20
U1@1#1livingU1153.56.45 × 8.30

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