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.

B0052 · best infeasible · seed 1

B0052-random-1-629

Random searchB · violates 3 of 17 benchmark constraints (6 violations). Brief B0052

Plan drawing of a rowhouse on a 30.4 by 30.6 metre lot, 2 storeys, 4 dwellings, 36 rooms. Dwelling U0 (2BR) has 9 rooms totalling 167 square metres. Dwelling U1 (2BR) has 9 rooms totalling 252 square metres. Dwelling U2 (2BR) has 9 rooms totalling 245 square metres. Dwelling U3 (2BR) has 9 rooms totalling 136 square metres. Building footprint 400 square metres; open space 522 square metres. This design is infeasible; failing categories: bad proportion, daylight failure. Objective scores, higher is better: density 0.60, daylight 0.61, privacy 0.91, circulation 0.51, carbon 0.92, cost 0.76.
B0052 · random · seed 1scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a rowhouse on a 30.4 by 30.6 metre lot, 2 storeys, 4 dwellings, 36 rooms. Dwelling U0 (2BR) has 9 rooms totalling 167 square metres. Dwelling U1 (2BR) has 9 rooms totalling 252 square metres. Dwelling U2 (2BR) has 9 rooms totalling 245 square metres. Dwelling U3 (2BR) has 9 rooms totalling 136 square metres. Building footprint 400 square metres; open space 522 square metres. This design is infeasible; failing categories: bad proportion, daylight failure. Objective scores, higher is better: density 0.60, daylight 0.61, privacy 0.91, circulation 0.51, carbon 0.92, cost 0.76.

Objective vector

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

density
0.605
daylight
0.612
privacy
0.911
circulation
0.509
carbon
0.919
cost
0.755

Reported quantities

FAR proxy (GFA / lot)
0.86
site utilisation
0.743
gross floor area, m²
800.6
footprint, m²
400.3
carbon proxy, kgCO₂e/m² (A1–A3)
289
cost index / m² (unitless)
2.13
worst habitable room, daylight
0.000
circulation share of GFA
24%
open space, net of parking
57%
courtyard void, m²
0.0
plumbing stacks
10
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 failedentry clear dim 1.05 < 1.20 m
  • C06max room aspect failedbedroom_primary aspect 2.98 > 2.40entry aspect 4.35 > 4.00bathroom aspect 3.07 > 3.00…and 1 more
  • C07min unit area passed
  • C08unit connectivity passed
  • C09street access passed
  • C10habitable daylight failedkitchen has 0.00 m of window-capable wall
  • 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
U02BR167.49
U12BR252.49
U22BR245.09
U32BR135.89
All 36 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0018.52.00 × 9.25
STAIR:U0@1circulationU0118.52.00 × 9.25
U0@0#1livingU0042.14.55 × 9.25
U0@0#2kitchenU0014.12.50 × 5.65
U0@0#3bathroomU004.82.50 × 1.90
U0@0#0entryU004.32.50 × 1.70
U0@1#5bedroom primaryU0128.73.10 × 9.25
U0@1#7bathroomU0111.13.95 × 2.80
U0@1#6bedroom secondaryU0125.53.95 × 6.45
STAIR:U1@0circulationU1026.43.10 × 8.50
STAIR:U1@1circulationU1126.43.10 × 8.50
U1@0#3bathroomU1017.24.35 × 3.95
U1@0#2kitchenU1019.84.35 × 4.55
U1@0#1livingU1050.37.40 × 6.80
U1@0#0entryU1012.67.40 × 1.70
U1@1#7bathroomU1125.77.15 × 3.60
U1@1#6bedroom secondaryU1135.07.15 × 4.90
U1@1#5bedroom primaryU1139.14.60 × 8.50
STAIR:U2@0circulationU2024.32.95 × 8.25
STAIR:U2@1circulationU2124.32.95 × 8.25
U2@0#1livingU2059.07.15 × 8.25
U2@0#2kitchenU2018.14.75 × 3.80
U2@0#3bathroomU207.64.75 × 1.60
U2@0#0entryU2013.54.75 × 2.85
U2@1#6bedroom secondaryU2140.04.85 × 8.25
U2@1#5bedroom primaryU2141.97.05 × 5.95
U2@1#7bathroomU2116.27.05 × 2.30
STAIR:U3@0circulationU307.51.00 × 7.50
STAIR:U3@1circulationU317.51.00 × 7.50
U3@0#0entryU304.84.55 × 1.05
U3@0#1livingU3029.34.55 × 6.45
U3@0#2kitchenU3017.13.50 × 4.90
U3@0#3bathroomU309.13.50 × 2.60
U3@1#7bathroomU3111.84.30 × 2.75
U3@1#6bedroom secondaryU3120.44.30 × 4.75
U3@1#5bedroom primaryU3128.13.75 × 7.50

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