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 · daylight-optimal · seed 0

B0040-sketch-0-1197

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 150 square metres. Dwelling U1 (3BR) has 11 rooms totalling 112 square metres. Dwelling U2 (2BR) has 9 rooms totalling 108 square metres. Building footprint 185 square metres; open space 280 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.83, daylight 0.63, privacy 0.91, circulation 0.54, carbon 0.81, cost 0.50.
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 150 square metres. Dwelling U1 (3BR) has 11 rooms totalling 112 square metres. Dwelling U2 (2BR) has 9 rooms totalling 108 square metres. Building footprint 185 square metres; open space 280 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.83, daylight 0.63, privacy 0.91, circulation 0.54, carbon 0.81, cost 0.50.

Objective vector

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

density
0.828
daylight
0.632
privacy
0.910
circulation
0.538
carbon
0.814
cost
0.498

Reported quantities

FAR proxy (GFA / lot)
0.80
site utilisation
0.888
gross floor area, m²
370.7
footprint, m²
185.4
carbon proxy, kgCO₂e/m² (A1–A3)
327
cost index / m² (unitless)
2.53
worst habitable room, daylight
0.219
circulation share of GFA
20%
open space, net of parking
60%
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
U02BR149.89
U13BR112.411
U22BR108.59
All 29 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU009.86.75 × 1.45
STAIR:U0@1circulationU019.86.75 × 1.45
U0@0#0entryU003.91.40 × 2.80
U0@0#1livingU0015.05.35 × 2.80
U0@0#3bathroomU0030.14.40 × 6.85
U0@0#2kitchenU0016.12.35 × 6.85
U0@1#6bedroom secondaryU0129.06.75 × 4.30
U0@1#7bathroomU0113.62.55 × 5.35
U0@1#5bedroom primaryU0122.54.20 × 5.35
STAIR:U1@0circulationU106.21.10 × 5.65
STAIR:U1@1circulationU116.21.10 × 5.65
U1@0#1livingU1012.04.15 × 2.90
U1@0#3kitchenU1011.44.15 × 2.75
U1@0#0entryU108.51.50 × 5.65
U1@0#2diningU1010.93.20 × 3.40
U1@0#4bathroomU107.23.20 × 2.25
U1@1#6bedroom primaryU1112.43.35 × 3.70
U1@1#7bedroom secondaryU118.52.30 × 3.70
U1@1#9bathroomU1111.05.65 × 1.95
U1@1#8bedroom secondaryU1118.13.20 × 5.65
STAIR:U2@0circulationU2012.49.95 × 1.25
STAIR:U2@1circulationU2112.49.95 × 1.25
U2@0#0entryU205.51.30 × 4.20
U2@0#1livingU2015.83.75 × 4.20
U2@0#2kitchenU2013.23.15 × 4.20
U2@0#3bathroomU207.31.75 × 4.20
U2@1#6bedroom secondaryU2111.82.80 × 4.20
U2@1#5bedroom primaryU2115.13.60 × 4.20
U2@1#7bathroomU2114.93.55 × 4.20

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