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 · knee point · seed 0

B0040-sketch-0-640

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 154 square metres. Dwelling U1 (3BR) has 11 rooms totalling 115 square metres. Dwelling U2 (2BR) has 9 rooms totalling 111 square metres. Building footprint 190 square metres; open space 272 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.86, daylight 0.61, privacy 0.93, circulation 0.52, carbon 0.82, cost 0.52.
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 154 square metres. Dwelling U1 (3BR) has 11 rooms totalling 115 square metres. Dwelling U2 (2BR) has 9 rooms totalling 111 square metres. Building footprint 190 square metres; open space 272 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.86, daylight 0.61, privacy 0.93, circulation 0.52, carbon 0.82, cost 0.52.

Objective vector

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

density
0.865
daylight
0.607
privacy
0.933
circulation
0.520
carbon
0.821
cost
0.520

Reported quantities

FAR proxy (GFA / lot)
0.82
site utilisation
0.912
gross floor area, m²
380.8
footprint, m²
190.4
carbon proxy, kgCO₂e/m² (A1–A3)
325
cost index / m² (unitless)
2.49
worst habitable room, daylight
0.219
circulation share of GFA
22%
open space, net of parking
59%
courtyard void, m²
0.0
plumbing stacks
5
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
U02BR153.99
U13BR115.411
U22BR111.49
All 29 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0011.86.75 × 1.75
STAIR:U0@1circulationU0111.86.75 × 1.75
U0@0#1livingU0015.05.35 × 2.80
U0@0#0entryU003.91.40 × 2.80
U0@0#3bathroomU0030.14.40 × 6.85
U0@0#2kitchenU0016.12.35 × 6.85
U0@1#6bedroom secondaryU0137.86.75 × 5.60
U0@1#7bathroomU0110.32.55 × 4.05
U0@1#5bedroom primaryU0117.04.20 × 4.05
STAIR:U1@0circulationU108.11.40 × 5.80
STAIR:U1@1circulationU118.11.40 × 5.80
U1@0#1livingU1011.84.00 × 2.95
U1@0#3kitchenU1011.44.00 × 2.85
U1@0#0entryU108.41.45 × 5.80
U1@0#2diningU1010.83.10 × 3.50
U1@0#4bathroomU107.13.10 × 2.30
U1@1#6bedroom primaryU1112.33.25 × 3.80
U1@1#7bedroom secondaryU118.42.20 × 3.80
U1@1#9bathroomU1110.95.45 × 2.00
U1@1#8bedroom secondaryU1118.03.10 × 5.80
STAIR:U2@0circulationU2012.49.95 × 1.25
STAIR:U2@1circulationU2112.49.95 × 1.25
U2@0#0entryU205.71.30 × 4.35
U2@0#1livingU2016.33.75 × 4.35
U2@0#2kitchenU2013.93.20 × 4.35
U2@0#3bathroomU207.41.70 × 4.35
U2@1#6bedroom secondaryU2115.23.50 × 4.35
U2@1#5bedroom primaryU2114.13.25 × 4.35
U2@1#7bathroomU2113.93.20 × 4.35

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