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.

B0016 · carbon-optimal · seed 0

B0016-sketch-0-1183

Random sketch + repairF′ · meets all 17 benchmark constraints. Brief B0016

Plan drawing of a rowhouse on a 22.6 by 27.6 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 107 square metres. Dwelling U1 (3BR) has 11 rooms totalling 165 square metres. Dwelling U2 (2BR) has 9 rooms totalling 303 square metres. Building footprint 287 square metres; open space 343 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.95, daylight 0.67, privacy 0.87, circulation 0.48, carbon 0.90, cost 0.84.
B0016 · sketch · seed 0scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a rowhouse on a 22.6 by 27.6 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 107 square metres. Dwelling U1 (3BR) has 11 rooms totalling 165 square metres. Dwelling U2 (2BR) has 9 rooms totalling 303 square metres. Building footprint 287 square metres; open space 343 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.95, daylight 0.67, privacy 0.87, circulation 0.48, carbon 0.90, cost 0.84.

Objective vector

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

density
0.952
daylight
0.666
privacy
0.872
circulation
0.482
carbon
0.901
cost
0.843

Reported quantities

FAR proxy (GFA / lot)
0.92
site utilisation
0.969
gross floor area, m²
574.7
footprint, m²
287.3
carbon proxy, kgCO₂e/m² (A1–A3)
296
cost index / m² (unitless)
1.99
worst habitable room, daylight
0.179
circulation share of GFA
40%
open space, net of parking
54%
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
U02BR107.19
U13BR164.711
U22BR302.99
All 29 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0013.22.25 × 5.85
STAIR:U0@1circulationU0113.22.25 × 5.85
U0@0#3bathroomU008.03.20 × 2.50
U0@0#2kitchenU0010.73.20 × 3.35
U0@0#0entryU0010.53.70 × 2.85
U0@0#1livingU0011.13.70 × 3.00
U0@1#7bathroomU0120.46.90 × 2.95
U0@1#5bedroom primaryU0111.64.00 × 2.90
U0@1#6bedroom secondaryU018.42.90 × 2.90
STAIR:U1@0circulationU1010.31.15 × 9.00
STAIR:U1@1circulationU1110.31.15 × 9.00
U1@0#3kitchenU1014.82.60 × 5.70
U1@0#1livingU1018.23.20 × 5.70
U1@0#2diningU109.12.20 × 4.15
U1@0#0entryU103.42.20 × 1.55
U1@0#4bathroomU1026.48.00 × 3.30
U1@1#7bedroom secondaryU119.22.75 × 3.35
U1@1#9bathroomU1115.52.75 × 5.65
U1@1#6bedroom primaryU1118.95.25 × 3.60
U1@1#8bedroom secondaryU1128.45.25 × 5.40
STAIR:U2@0circulationU2069.410.20 × 6.80
STAIR:U2@1circulationU2169.410.20 × 6.80
U2@0#2kitchenU2013.63.10 × 4.40
U2@0#1livingU2011.33.10 × 3.65
U2@0#0entryU2031.03.85 × 8.05
U2@0#3bathroomU2026.23.25 × 8.05
U2@1#6bedroom secondaryU2117.64.45 × 3.95
U2@1#5bedroom primaryU2122.75.75 × 3.95
U2@1#7bathroomU2141.810.20 × 4.10

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