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.

B0040 · circulation-optimal · seed 0

B0040-sketch-0-1198

Random sketch + repairF′ · meets all 17 benchmark constraints. Brief B0040

Plan drawing of a rowhouse on a 20.7 by 22.5 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 149 square metres. Dwelling U1 (3BR) has 11 rooms totalling 111 square metres. Dwelling U2 (2BR) has 9 rooms totalling 107 square metres. Building footprint 183 square metres; open space 280 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.81, daylight 0.61, privacy 0.93, circulation 0.54, carbon 0.81, cost 0.58.
B0040 · sketch · seed 0scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a rowhouse on a 20.7 by 22.5 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 149 square metres. Dwelling U1 (3BR) has 11 rooms totalling 111 square metres. Dwelling U2 (2BR) has 9 rooms totalling 107 square metres. Building footprint 183 square metres; open space 280 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.81, daylight 0.61, privacy 0.93, circulation 0.54, carbon 0.81, cost 0.58.

Objective vector

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

density
0.811
daylight
0.612
privacy
0.934
circulation
0.542
carbon
0.812
cost
0.581

Reported quantities

FAR proxy (GFA / lot)
0.79
site utilisation
0.877
gross floor area, m²
366.2
footprint, m²
183.1
carbon proxy, kgCO₂e/m² (A1–A3)
328
cost index / m² (unitless)
2.40
worst habitable room, daylight
0.231
circulation share of GFA
20%
open space, net of parking
61%
courtyard void, m²
0.0
plumbing stacks
3
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
U02BR149.09
U13BR110.611
U22BR106.79
All 29 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU009.66.65 × 1.45
STAIR:U0@1circulationU019.66.65 × 1.45
U0@0#1livingU0018.45.25 × 3.50
U0@0#0entryU004.91.40 × 3.50
U0@0#3bathroomU0027.24.35 × 6.25
U0@0#2kitchenU0014.42.30 × 6.25
U0@1#6bedroom secondaryU0123.36.65 × 3.50
U0@1#7bathroomU0116.06.65 × 2.40
U0@1#5bedroom primaryU0125.66.65 × 3.85
STAIR:U1@0circulationU106.31.10 × 5.70
STAIR:U1@1circulationU116.31.10 × 5.70
U1@0#1livingU1011.74.05 × 2.90
U1@0#3kitchenU1011.34.05 × 2.80
U1@0#0entryU108.31.45 × 5.70
U1@0#2diningU1010.73.10 × 3.45
U1@0#4bathroomU107.03.10 × 2.25
U1@1#8bedroom secondaryU1118.03.15 × 5.70
U1@1#6bedroom primaryU1112.23.25 × 3.75
U1@1#7bedroom secondaryU118.32.20 × 3.75
U1@1#9bathroomU1110.65.45 × 1.95
STAIR:U2@0circulationU2012.19.70 × 1.25
STAIR:U2@1circulationU2112.19.70 × 1.25
U2@0#0entryU205.51.30 × 4.25
U2@0#1livingU2016.13.80 × 4.25
U2@0#2kitchenU2012.52.95 × 4.25
U2@0#3bathroomU207.01.65 × 4.25
U2@1#6bedroom secondaryU2110.82.55 × 4.25
U2@1#5bedroom primaryU2115.33.60 × 4.25
U2@1#7bathroomU2115.13.55 × 4.25

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