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.

B0016 · best infeasible · seed 0

B0016-heuristic-0~r0

HeuristicA · violates 1 of 17 benchmark constraints (1 violations). Brief B0016

Plan drawing of a rowhouse on a 22.6 by 27.6 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 180 square metres. Dwelling U1 (3BR) has 11 rooms totalling 247 square metres. Dwelling U2 (2BR) has 9 rooms totalling 149 square metres. Building footprint 288 square metres; open space 334 square metres. This design is infeasible; failing categories: adjacency violation. Objective scores, higher is better: density 0.96, daylight 0.51, privacy 0.86, circulation 0.46, carbon 0.90, cost 0.74.
B0016 · heuristic · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a rowhouse on a 22.6 by 27.6 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 180 square metres. Dwelling U1 (3BR) has 11 rooms totalling 247 square metres. Dwelling U2 (2BR) has 9 rooms totalling 149 square metres. Building footprint 288 square metres; open space 334 square metres. This design is infeasible; failing categories: adjacency violation. Objective scores, higher is better: density 0.96, daylight 0.51, privacy 0.86, circulation 0.46, carbon 0.90, cost 0.74.

Objective vector

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

density
0.957
daylight
0.512
privacy
0.860
circulation
0.455
carbon
0.903
cost
0.736

Reported quantities

FAR proxy (GFA / lot)
0.92
site utilisation
0.972
gross floor area, m²
576.6
footprint, m²
288.3
carbon proxy, kgCO₂e/m² (A1–A3)
295
cost index / m² (unitless)
2.16
worst habitable room, daylight
0.179
circulation share of GFA
47%
open space, net of parking
54%
courtyard void, m²
0.0
plumbing stacks
7
footprint corners
4
preferred adjacencies met
63%

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 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
U02BR180.39
U13BR247.311
U22BR149.09
All 29 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0045.46.05 × 7.50
STAIR:U0@1circulationU0145.46.05 × 7.50
U0@0#2kitchenU006.53.00 × 2.15
U0@0#3bathroomU003.21.50 × 2.15
U0@0#0entryU003.31.55 × 2.15
U0@0#1livingU0031.86.05 × 5.25
U0@1#5bedroom primaryU0111.03.10 × 3.55
U0@1#6bedroom secondaryU0110.52.95 × 3.55
U0@1#7bathroomU0123.36.05 × 3.85
STAIR:U1@0circulationU1045.28.30 × 5.45
STAIR:U1@1circulationU1145.28.30 × 5.45
U1@0#0entryU105.21.20 × 4.30
U1@0#1livingU1011.82.75 × 4.30
U1@0#2diningU109.72.25 × 4.30
U1@0#3kitchenU109.02.10 × 4.30
U1@0#4bathroomU1042.78.30 × 5.15
U1@1#6bedroom primaryU1111.02.90 × 3.80
U1@1#7bedroom secondaryU119.32.45 × 3.80
U1@1#8bedroom secondaryU1111.22.95 × 3.80
U1@1#9bathroomU1146.98.30 × 5.65
STAIR:U2@0circulationU2037.85.00 × 7.55
STAIR:U2@1circulationU2137.85.00 × 7.55
U2@0#0entryU203.01.20 × 2.50
U2@0#3bathroomU203.81.50 × 2.50
U2@0#2kitchenU205.82.30 × 2.50
U2@0#1livingU2024.35.00 × 4.85
U2@1#5bedroom primaryU2111.12.80 × 3.95
U2@1#6bedroom secondaryU218.72.20 × 3.95
U2@1#7bathroomU2117.05.00 × 3.40

Side by side