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.

B0046 · knee point · seed 0

B0046-sketch-0-1149

Random sketch + repairF′ · meets all 17 benchmark constraints. Brief B0046

Plan drawing of a rowhouse on a 19.9 by 22.1 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 193 square metres. Dwelling U1 (3BR) has 11 rooms totalling 94 square metres. Dwelling U2 (2BR) has 9 rooms totalling 79 square metres. Building footprint 183 square metres; open space 260 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.96, daylight 0.60, privacy 0.94, circulation 0.49, carbon 0.82, cost 0.50.
B0046 · sketch · seed 0scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a rowhouse on a 19.9 by 22.1 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 193 square metres. Dwelling U1 (3BR) has 11 rooms totalling 94 square metres. Dwelling U2 (2BR) has 9 rooms totalling 79 square metres. Building footprint 183 square metres; open space 260 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.96, daylight 0.60, privacy 0.94, circulation 0.49, carbon 0.82, cost 0.50.

Objective vector

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

density
0.960
daylight
0.596
privacy
0.936
circulation
0.492
carbon
0.818
cost
0.497

Reported quantities

FAR proxy (GFA / lot)
0.83
site utilisation
0.974
gross floor area, m²
366.2
footprint, m²
183.1
carbon proxy, kgCO₂e/m² (A1–A3)
325
cost index / m² (unitless)
2.53
worst habitable room, daylight
0.206
circulation share of GFA
29%
open space, net of parking
58%
courtyard void, m²
0.0
plumbing stacks
5
footprint corners
4
preferred adjacencies met
75%

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
U02BR193.29
U13BR94.211
U22BR78.89
All 29 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0024.32.05 × 11.85
STAIR:U0@1circulationU0124.32.05 × 11.85
U0@0#2kitchenU0031.83.95 × 8.05
U0@0#0entryU0017.32.15 × 8.05
U0@0#3bathroomU0010.62.80 × 3.80
U0@0#1livingU0012.53.30 × 3.80
U0@1#6bedroom secondaryU0124.76.10 × 4.05
U0@1#5bedroom primaryU0121.46.10 × 3.50
U0@1#7bathroomU0126.26.10 × 4.30
STAIR:U1@0circulationU107.71.20 × 6.45
STAIR:U1@1circulationU117.71.20 × 6.45
U1@0#4bathroomU104.91.75 × 2.80
U1@0#2diningU1012.24.35 × 2.80
U1@0#1livingU1013.03.55 × 3.65
U1@0#0entryU103.22.55 × 1.25
U1@0#3kitchenU106.12.55 × 2.40
U1@1#8bedroom secondaryU1114.36.10 × 2.35
U1@1#6bedroom primaryU1112.93.15 × 4.10
U1@1#9bathroomU114.62.95 × 1.55
U1@1#7bedroom secondaryU117.52.95 × 2.55
STAIR:U2@0circulationU208.87.30 × 1.20
STAIR:U2@1circulationU218.87.30 × 1.20
U2@0#3bathroomU207.11.70 × 4.20
U2@0#2kitchenU207.81.85 × 4.20
U2@0#1livingU2011.33.75 × 3.00
U2@0#0entryU204.53.75 × 1.20
U2@1#6bedroom secondaryU218.13.05 × 2.65
U2@1#7bathroomU214.73.05 × 1.55
U2@1#5bedroom primaryU2117.94.25 × 4.20

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