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.

B0012 · cost-optimal · seed 0

B0012-heuristic-0~r15

HeuristicA · meets all 17 benchmark constraints. Brief B0012

Plan drawing of a adu pair on a 16.6 by 21.5 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 103 square metres. Dwelling U1 (1BR) has 5 rooms totalling 103 square metres. Building footprint 126 square metres; open space 231 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 1.00, daylight 0.69, privacy 0.78, circulation 0.59, carbon 0.82, cost 0.72.
B0012 · heuristic · seed 0scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a adu pair on a 16.6 by 21.5 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 103 square metres. Dwelling U1 (1BR) has 5 rooms totalling 103 square metres. Building footprint 126 square metres; open space 231 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 1.00, daylight 0.69, privacy 0.78, circulation 0.59, carbon 0.82, cost 0.72.

Objective vector

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

density
1.000
daylight
0.689
privacy
0.779
circulation
0.591
carbon
0.822
cost
0.722

Reported quantities

FAR proxy (GFA / lot)
0.71
site utilisation
1.000
gross floor area, m²
252.2
footprint, m²
126.1
carbon proxy, kgCO₂e/m² (A1–A3)
324
cost index / m² (unitless)
2.18
worst habitable room, daylight
0.573
circulation share of GFA
20%
open space, net of parking
56%
courtyard void, m²
0.0
plumbing stacks
1
footprint corners
4
preferred adjacencies met
0%

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 passed
  • C12forbidden door passed
  • C13open space passed
  • C14courtyard provision passed
  • C15programme complete passed
  • C16unit contiguity passed
  • C17vertical support passed

Dwellings and rooms

DwellingTypeArea m²Rooms
U02BR103.36
U11BR103.35
All 13 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared022.82.35 × 9.70
CORE@1shared circulationshared122.82.35 × 9.70
U0@0#2kitchenU0014.52.20 × 6.60
U0@0#3bathroomU003.92.20 × 1.75
U0@0#0entryU003.02.20 × 1.35
U0@0#1livingU0047.54.90 × 9.70
U0@0#4bedroom primaryU0019.73.55 × 5.55
U0@0#5bedroom secondaryU0014.73.55 × 4.15
U1@1#2kitchenU1111.92.15 × 5.55
U1@1#3bathroomU116.22.15 × 2.90
U1@1#0entryU112.72.15 × 1.25
U1@1#1livingU1137.83.90 × 9.70
U1@1#4bedroom primaryU1144.64.60 × 9.70

Side by side