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 · knee point · seed 1

B0016-sketch-1-1168

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 109 square metres. Dwelling U1 (3BR) has 11 rooms totalling 116 square metres. Dwelling U2 (2BR) has 9 rooms totalling 338 square metres. Building footprint 282 square metres; open space 334 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.92, daylight 0.69, privacy 0.92, circulation 0.57, carbon 0.89, cost 0.79.
B0016 · sketch · seed 1scale 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 109 square metres. Dwelling U1 (3BR) has 11 rooms totalling 116 square metres. Dwelling U2 (2BR) has 9 rooms totalling 338 square metres. Building footprint 282 square metres; open space 334 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.92, daylight 0.69, privacy 0.92, circulation 0.57, carbon 0.89, cost 0.79.

Objective vector

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

density
0.922
daylight
0.685
privacy
0.915
circulation
0.567
carbon
0.894
cost
0.794

Reported quantities

FAR proxy (GFA / lot)
0.90
site utilisation
0.949
gross floor area, m²
563.0
footprint, m²
281.5
carbon proxy, kgCO₂e/m² (A1–A3)
298
cost index / m² (unitless)
2.07
worst habitable room, daylight
0.185
circulation share of GFA
18%
open space, net of parking
55%
courtyard void, m²
0.0
plumbing stacks
4
footprint corners
4
preferred adjacencies met
63%

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
U02BR108.69
U13BR116.311
U22BR338.19
All 29 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU007.51.05 × 7.10
STAIR:U0@1circulationU017.51.05 × 7.10
U0@0#1livingU0018.43.40 × 5.40
U0@0#2kitchenU0017.33.20 × 5.40
U0@0#0entryU004.02.35 × 1.70
U0@0#3bathroomU007.24.25 × 1.70
U0@1#5bedroom primaryU0112.22.70 × 4.50
U0@1#6bedroom secondaryU0117.63.90 × 4.50
U0@1#7bathroomU0117.26.60 × 2.60
STAIR:U1@0circulationU109.51.25 × 7.60
STAIR:U1@1circulationU119.51.25 × 7.60
U1@0#0entryU106.03.45 × 1.75
U1@0#4bathroomU105.22.95 × 1.75
U1@0#1livingU1022.16.40 × 3.45
U1@0#3kitchenU108.03.35 × 2.40
U1@0#2diningU107.33.05 × 2.40
U1@1#6bedroom primaryU1112.42.85 × 4.35
U1@1#8bedroom secondaryU119.32.85 × 3.25
U1@1#9bathroomU1115.13.55 × 4.25
U1@1#7bedroom secondaryU1111.93.55 × 3.35
STAIR:U2@0circulationU2027.21.85 × 14.70
STAIR:U2@1circulationU2127.21.85 × 14.70
U2@0#3bathroomU2089.76.10 × 14.70
U2@0#2kitchenU2019.93.55 × 5.60
U2@0#1livingU2027.33.55 × 7.70
U2@0#0entryU205.03.55 × 1.40
U2@1#5bedroom primaryU2145.49.65 × 4.70
U2@1#7bathroomU2144.99.65 × 4.65
U2@1#6bedroom secondaryU2151.69.65 × 5.35

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