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-random-0-1039

Random searchB · violates 2 of 17 benchmark constraints (6 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 115 square metres. Dwelling U1 (3BR) has 11 rooms totalling 223 square metres. Dwelling U2 (2BR) has 9 rooms totalling 85 square metres. Building footprint 211 square metres; open space 406 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.56, daylight 0.63, privacy 0.93, circulation 0.47, carbon 0.85, cost 0.52.
B0016 · random · 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 115 square metres. Dwelling U1 (3BR) has 11 rooms totalling 223 square metres. Dwelling U2 (2BR) has 9 rooms totalling 85 square metres. Building footprint 211 square metres; open space 406 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.56, daylight 0.63, privacy 0.93, circulation 0.47, carbon 0.85, cost 0.52.

Objective vector

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

density
0.558
daylight
0.630
privacy
0.929
circulation
0.470
carbon
0.848
cost
0.521

Reported quantities

FAR proxy (GFA / lot)
0.68
site utilisation
0.713
gross floor area, m²
422.8
footprint, m²
211.4
carbon proxy, kgCO₂e/m² (A1–A3)
315
cost index / m² (unitless)
2.49
worst habitable room, daylight
0.328
circulation share of GFA
27%
open space, net of parking
66%
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 failedbedroom_primary clear dim 2.25 < 2.70 mkitchen clear dim 1.65 < 1.80 mentry clear dim 1.15 < 1.20 m
  • C06max room aspect failedbedroom_primary aspect 3.18 > 2.40kitchen aspect 3.70 > 3.00bedroom_primary aspect 2.56 > 2.40
  • 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
U02BR115.19
U13BR223.211
U22BR84.59
All 29 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0013.61.90 × 7.15
STAIR:U0@1circulationU0113.61.90 × 7.15
U0@0#1livingU0026.83.75 × 7.15
U0@0#3bathroomU004.82.40 × 2.00
U0@0#2kitchenU008.42.40 × 3.50
U0@0#0entryU004.02.40 × 1.65
U0@1#5bedroom primaryU0116.12.25 × 7.15
U0@1#6bedroom secondaryU0116.83.90 × 4.30
U0@1#7bathroomU0111.13.90 × 2.85
STAIR:U1@0circulationU1026.72.15 × 12.40
STAIR:U1@1circulationU1126.72.15 × 12.40
U1@0#3kitchenU1010.11.65 × 6.10
U1@0#0entryU106.11.65 × 3.70
U1@0#4bathroomU104.31.65 × 2.60
U1@0#2diningU1019.55.20 × 3.75
U1@0#1livingU1045.05.20 × 8.65
U1@1#7bedroom secondaryU1119.73.75 × 5.25
U1@1#8bedroom secondaryU1126.83.75 × 7.15
U1@1#9bathroomU1113.83.10 × 4.45
U1@1#6bedroom primaryU1124.63.10 × 7.95
STAIR:U2@0circulationU2011.32.15 × 5.25
STAIR:U2@1circulationU2111.32.15 × 5.25
U2@0#1livingU2017.63.35 × 5.25
U2@0#0entryU202.92.55 × 1.15
U2@0#2kitchenU206.42.55 × 2.50
U2@0#3bathroomU204.12.55 × 1.60
U2@1#5bedroom primaryU2116.33.10 × 5.25
U2@1#6bedroom secondaryU2110.12.80 × 3.60
U2@1#7bathroomU214.62.80 × 1.65

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