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.

B0010 · best infeasible · seed 0

B0010-heuristic-0~r0

HeuristicA · violates 3 of 17 benchmark constraints (8 violations). Brief B0010

Plan drawing of a rowhouse on a 24.4 by 28.2 metre lot, 2 storeys, 4 dwellings, 36 rooms. Dwelling U0 (2BR) has 9 rooms totalling 108 square metres. Dwelling U1 (2BR) has 9 rooms totalling 123 square metres. Dwelling U2 (2BR) has 9 rooms totalling 126 square metres. Dwelling U3 (2BR) has 9 rooms totalling 109 square metres. Building footprint 232 square metres; open space 450 square metres. This design is infeasible; failing categories: bad proportion, insufficient area. Objective scores, higher is better: density 0.61, daylight 0.49, privacy 0.85, circulation 0.46, carbon 0.83, cost 0.39.
B0010 · heuristic · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a rowhouse on a 24.4 by 28.2 metre lot, 2 storeys, 4 dwellings, 36 rooms. Dwelling U0 (2BR) has 9 rooms totalling 108 square metres. Dwelling U1 (2BR) has 9 rooms totalling 123 square metres. Dwelling U2 (2BR) has 9 rooms totalling 126 square metres. Dwelling U3 (2BR) has 9 rooms totalling 109 square metres. Building footprint 232 square metres; open space 450 square metres. This design is infeasible; failing categories: bad proportion, insufficient area. Objective scores, higher is better: density 0.61, daylight 0.49, privacy 0.85, circulation 0.46, carbon 0.83, cost 0.39.

Objective vector

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

density
0.613
daylight
0.492
privacy
0.854
circulation
0.461
carbon
0.833
cost
0.392

Reported quantities

FAR proxy (GFA / lot)
0.68
site utilisation
0.748
gross floor area, m²
464.9
footprint, m²
232.4
carbon proxy, kgCO₂e/m² (A1–A3)
320
cost index / m² (unitless)
2.69
worst habitable room, daylight
0.250
circulation share of GFA
43%
open space, net of parking
66%
courtyard void, m²
0.0
plumbing stacks
10
footprint corners
4
preferred adjacencies met
50%

Benchmark constraints

Benchmark rules, not building code.

  • C01geometry valid passed
  • C02no overlap passed
  • C03within buildable passed
  • C04min room area failedliving 10.9 < 11.0 m^2
  • C05min room dimension failedbedroom_secondary clear dim 2.00 < 2.20 mliving clear dim 2.40 < 2.70 mkitchen clear dim 1.75 < 1.80 m…and 3 more
  • C06max room aspect failedentry aspect 4.05 > 4.00
  • 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
U02BR107.69
U12BR122.59
U22BR126.09
U32BR108.89
All 36 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0022.14.70 × 4.70
STAIR:U0@1circulationU0122.14.70 × 4.70
U0@0#2kitchenU005.71.95 × 2.90
U0@0#3bathroomU004.31.50 × 2.90
U0@0#0entryU003.61.25 × 2.90
U0@0#1livingU0018.14.70 × 3.85
U0@1#5bedroom primaryU0113.42.70 × 4.95
U0@1#6bedroom secondaryU019.92.00 × 4.95
U0@1#7bathroomU018.54.70 × 1.80
STAIR:U1@0circulationU1027.05.35 × 5.05
STAIR:U1@1circulationU1127.05.35 × 5.05
U1@0#0entryU105.51.20 × 4.60
U1@0#1livingU1011.02.40 × 4.60
U1@0#2kitchenU108.11.75 × 4.60
U1@0#3bathroomU109.65.35 × 1.80
U1@1#5bedroom primaryU1113.83.00 × 4.60
U1@1#6bedroom secondaryU1110.82.35 × 4.60
U1@1#7bathroomU119.65.35 × 1.80
STAIR:U2@0circulationU2027.85.50 × 5.05
STAIR:U2@1circulationU2127.85.50 × 5.05
U2@0#0entryU204.01.00 × 4.05
U2@0#1livingU2010.92.70 × 4.05
U2@0#2kitchenU207.31.80 × 4.05
U2@0#3bathroomU2012.95.50 × 2.35
U2@1#5bedroom primaryU2113.53.00 × 4.50
U2@1#6bedroom secondaryU2111.32.50 × 4.50
U2@1#7bathroomU2110.45.50 × 1.90
STAIR:U3@0circulationU3015.74.75 × 3.30
STAIR:U3@1circulationU3115.74.75 × 3.30
U3@0#0entryU303.31.20 × 2.75
U3@0#3bathroomU304.11.50 × 2.75
U3@0#2kitchenU305.62.05 × 2.75
U3@0#1livingU3025.64.75 × 5.40
U3@1#5bedroom primaryU3114.32.60 × 5.50
U3@1#6bedroom secondaryU3111.82.15 × 5.50
U3@1#7bathroomU3112.64.75 × 2.65

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