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.

B0058 · knee point · seed 0

B0058-heuristic-0~r40

HeuristicA · meets all 17 benchmark constraints. Brief B0058

Plan drawing of a rowhouse on a 29.5 by 30.6 metre lot, 2 storeys, 4 dwellings, 36 rooms. Dwelling U0 (2BR) has 9 rooms totalling 226 square metres. Dwelling U1 (2BR) has 9 rooms totalling 233 square metres. Dwelling U2 (2BR) has 9 rooms totalling 246 square metres. Dwelling U3 (2BR) has 9 rooms totalling 228 square metres. Building footprint 466 square metres; open space 428 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.94, daylight 0.82, privacy 0.85, circulation 0.48, carbon 0.94, cost 0.86.
B0058 · heuristic · seed 0scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a rowhouse on a 29.5 by 30.6 metre lot, 2 storeys, 4 dwellings, 36 rooms. Dwelling U0 (2BR) has 9 rooms totalling 226 square metres. Dwelling U1 (2BR) has 9 rooms totalling 233 square metres. Dwelling U2 (2BR) has 9 rooms totalling 246 square metres. Dwelling U3 (2BR) has 9 rooms totalling 228 square metres. Building footprint 466 square metres; open space 428 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.94, daylight 0.82, privacy 0.85, circulation 0.48, carbon 0.94, cost 0.86.

Objective vector

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

density
0.940
daylight
0.819
privacy
0.854
circulation
0.475
carbon
0.941
cost
0.861

Reported quantities

FAR proxy (GFA / lot)
1.03
site utilisation
0.961
gross floor area, m²
932.2
footprint, m²
466.1
carbon proxy, kgCO₂e/m² (A1–A3)
281
cost index / m² (unitless)
1.96
worst habitable room, daylight
0.219
circulation share of GFA
66%
open space, net of parking
48%
courtyard void, m²
0.0
plumbing stacks
9
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
U02BR225.79
U12BR233.09
U22BR245.99
U32BR227.59
All 36 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0075.06.15 × 12.20
STAIR:U0@1circulationU0175.06.15 × 12.20
U0@0#2kitchenU009.33.10 × 3.00
U0@0#3bathroomU004.51.50 × 3.00
U0@0#0entryU004.71.55 × 3.00
U0@0#1livingU0019.46.15 × 3.15
U0@1#5bedroom primaryU0112.23.00 × 4.05
U0@1#6bedroom secondaryU0112.83.15 × 4.05
U0@1#7bathroomU0112.96.15 × 2.10
STAIR:U1@0circulationU1075.96.35 × 11.95
STAIR:U1@1circulationU1175.96.35 × 11.95
U1@0#0entryU105.11.20 × 4.25
U1@0#1livingU1011.92.80 × 4.25
U1@0#2kitchenU1010.02.35 × 4.25
U1@0#3bathroomU1013.76.35 × 2.15
U1@1#5bedroom primaryU1114.13.35 × 4.20
U1@1#6bedroom secondaryU1112.63.00 × 4.20
U1@1#7bathroomU1114.06.35 × 2.20
STAIR:U2@0circulationU2078.16.70 × 11.65
STAIR:U2@1circulationU2178.16.70 × 11.65
U2@0#0entryU205.31.20 × 4.45
U2@0#1livingU2012.52.80 × 4.45
U2@0#2kitchenU2012.02.70 × 4.45
U2@0#3bathroomU2015.16.70 × 2.25
U2@1#5bedroom primaryU2112.23.05 × 4.00
U2@1#6bedroom secondaryU2114.63.65 × 4.00
U2@1#7bathroomU2118.16.70 × 2.70
STAIR:U3@0circulationU3067.36.20 × 10.85
STAIR:U3@1circulationU3167.36.20 × 10.85
U3@0#0entryU307.31.65 × 4.45
U3@0#3bathroomU306.71.50 × 4.45
U3@0#2kitchenU3013.63.05 × 4.45
U3@0#1livingU3018.96.20 × 3.05
U3@1#5bedroom primaryU3117.33.20 × 5.40
U3@1#6bedroom secondaryU3116.23.00 × 5.40
U3@1#7bathroomU3113.06.20 × 2.10

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