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 · daylight-optimal · seed 0

B0052-heuristic-0~r28

HeuristicA · meets all 17 benchmark constraints. 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 208 square metres. Dwelling U1 (2BR) has 9 rooms totalling 239 square metres. Dwelling U2 (2BR) has 9 rooms totalling 236 square metres. Dwelling U3 (2BR) has 9 rooms totalling 201 square metres. Building footprint 442 square metres; open space 493 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.72, daylight 0.76, privacy 0.85, circulation 0.48, carbon 0.93, cost 0.86.
B0052 · heuristic · seed 0scale bar 5 m · north arrow top right✓ FEASIBLE

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 208 square metres. Dwelling U1 (2BR) has 9 rooms totalling 239 square metres. Dwelling U2 (2BR) has 9 rooms totalling 236 square metres. Dwelling U3 (2BR) has 9 rooms totalling 201 square metres. Building footprint 442 square metres; open space 493 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.72, daylight 0.76, privacy 0.85, circulation 0.48, carbon 0.93, cost 0.86.

Objective vector

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

density
0.724
daylight
0.758
privacy
0.855
circulation
0.478
carbon
0.934
cost
0.855

Reported quantities

FAR proxy (GFA / lot)
0.95
site utilisation
0.821
gross floor area, m²
884.4
footprint, m²
442.2
carbon proxy, kgCO₂e/m² (A1–A3)
284
cost index / m² (unitless)
1.97
worst habitable room, daylight
0.187
circulation share of GFA
60%
open space, net of parking
52%
courtyard void, m²
0.0
plumbing stacks
8
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 passed
  • C05min room dimension passed
  • C06max room aspect passed
  • 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
U02BR207.99
U12BR239.39
U22BR235.99
U32BR201.39
All 36 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0063.06.30 × 10.00
STAIR:U0@1circulationU0163.06.30 × 10.00
U0@0#2kitchenU0010.33.00 × 3.45
U0@0#3bathroomU005.21.50 × 3.45
U0@0#0entryU006.21.80 × 3.45
U0@0#1livingU0019.26.30 × 3.05
U0@1#5bedroom primaryU0113.43.05 × 4.40
U0@1#6bedroom secondaryU0114.33.25 × 4.40
U0@1#7bathroomU0113.26.30 × 2.10
STAIR:U1@0circulationU1067.17.25 × 9.25
STAIR:U1@1circulationU1167.17.25 × 9.25
U1@0#0entryU105.81.20 × 4.80
U1@0#1livingU1015.63.25 × 4.80
U1@0#2kitchenU1013.42.80 × 4.80
U1@0#3bathroomU1017.87.25 × 2.45
U1@1#5bedroom primaryU1118.54.25 × 4.35
U1@1#6bedroom secondaryU1113.13.00 × 4.35
U1@1#7bathroomU1121.07.25 × 2.90
STAIR:U2@0circulationU2066.17.15 × 9.25
STAIR:U2@1circulationU2166.17.15 × 9.25
U2@0#0entryU205.81.20 × 4.80
U2@0#1livingU2014.22.95 × 4.80
U2@0#2kitchenU2014.43.00 × 4.80
U2@0#3bathroomU2017.57.15 × 2.45
U2@1#5bedroom primaryU2118.24.10 × 4.45
U2@1#6bedroom secondaryU2113.63.05 × 4.45
U2@1#7bathroomU2120.07.15 × 2.80
STAIR:U3@0circulationU3056.46.10 × 9.25
STAIR:U3@1circulationU3156.46.10 × 9.25
U3@0#0entryU306.71.60 × 4.20
U3@0#3bathroomU306.31.50 × 4.20
U3@0#2kitchenU3012.63.00 × 4.20
U3@0#1livingU3018.66.10 × 3.05
U3@1#5bedroom primaryU3115.93.05 × 5.20
U3@1#6bedroom secondaryU3115.93.05 × 5.20
U3@1#7bathroomU3112.56.10 × 2.05

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