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.

B0046 · best infeasible · seed 0

B0046-heuristic-0~r0

HeuristicA · violates 2 of 17 benchmark constraints (9 violations). Brief B0046

Plan drawing of a rowhouse on a 19.9 by 22.1 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 99 square metres. Dwelling U1 (3BR) has 11 rooms totalling 152 square metres. Dwelling U2 (2BR) has 9 rooms totalling 95 square metres. Building footprint 173 square metres; open space 270 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion. Objective scores, higher is better: density 0.88, daylight 0.56, privacy 0.86, circulation 0.46, carbon 0.81, cost 0.32.
B0046 · heuristic · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a rowhouse on a 19.9 by 22.1 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 99 square metres. Dwelling U1 (3BR) has 11 rooms totalling 152 square metres. Dwelling U2 (2BR) has 9 rooms totalling 95 square metres. Building footprint 173 square metres; open space 270 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion. Objective scores, higher is better: density 0.88, daylight 0.56, privacy 0.86, circulation 0.46, carbon 0.81, cost 0.32.

Objective vector

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

density
0.877
daylight
0.556
privacy
0.860
circulation
0.458
carbon
0.810
cost
0.323

Reported quantities

FAR proxy (GFA / lot)
0.79
site utilisation
0.920
gross floor area, m²
346.0
footprint, m²
173.0
carbon proxy, kgCO₂e/m² (A1–A3)
328
cost index / m² (unitless)
2.80
worst habitable room, daylight
0.241
circulation share of GFA
42%
open space, net of parking
61%
courtyard void, m²
0.0
plumbing stacks
8
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 failedbedroom_secondary clear dim 1.80 < 2.20 mentry clear dim 1.05 < 1.20 mdining clear dim 1.70 < 2.20 m…and 5 more
  • 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
U02BR98.59
U13BR152.211
U22BR95.39
All 29 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0022.54.50 × 5.00
STAIR:U0@1circulationU0122.54.50 × 5.00
U0@0#2kitchenU005.81.80 × 3.25
U0@0#3bathroomU004.91.50 × 3.25
U0@0#0entryU003.91.20 × 3.25
U0@0#1livingU0012.24.50 × 2.70
U0@1#5bedroom primaryU0112.02.70 × 4.45
U0@1#6bedroom secondaryU018.01.80 × 4.45
U0@1#7bathroomU016.84.50 × 1.50
STAIR:U1@0circulationU1024.36.95 × 3.50
STAIR:U1@1circulationU1124.36.95 × 3.50
U1@0#0entryU104.41.05 × 4.15
U1@0#1livingU1011.22.70 × 4.15
U1@0#2diningU107.11.70 × 4.15
U1@0#3kitchenU106.21.50 × 4.15
U1@0#4bathroomU1022.96.95 × 3.30
U1@1#6bedroom primaryU1112.82.55 × 5.00
U1@1#7bedroom secondaryU1111.02.20 × 5.00
U1@1#8bedroom secondaryU1111.02.20 × 5.00
U1@1#9bathroomU1117.06.95 × 2.45
STAIR:U2@0circulationU2020.04.35 × 4.60
STAIR:U2@1circulationU2120.04.35 × 4.60
U2@0#0entryU204.41.20 × 3.65
U2@0#3bathroomU204.91.35 × 3.65
U2@0#2kitchenU206.61.80 × 3.65
U2@0#1livingU2011.74.35 × 2.70
U2@1#5bedroom primaryU2111.42.50 × 4.55
U2@1#6bedroom secondaryU218.41.85 × 4.55
U2@1#7bathroomU217.84.35 × 1.80

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