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.

B0032 · circulation-optimal · seed 1

B0032-cpsat-1-5

CP-SATE · meets all 17 benchmark constraints. Brief B0032

Plan drawing of a duplex on a 13.9 by 23.0 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (2BR) has 6 rooms totalling 85 square metres. Dwelling U1 (2BR) has 6 rooms totalling 78 square metres. Building footprint 89 square metres; open space 233 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.91, daylight 0.81, privacy 0.82, circulation 0.76, carbon 0.69, cost 0.22.
B0032 · cpsat · seed 1scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a duplex on a 13.9 by 23.0 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (2BR) has 6 rooms totalling 85 square metres. Dwelling U1 (2BR) has 6 rooms totalling 78 square metres. Building footprint 89 square metres; open space 233 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.91, daylight 0.81, privacy 0.82, circulation 0.76, carbon 0.69, cost 0.22.

Objective vector

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

density
0.906
daylight
0.811
privacy
0.823
circulation
0.765
carbon
0.689
cost
0.222

Reported quantities

FAR proxy (GFA / lot)
0.54
site utilisation
0.939
gross floor area, m²
171.5
footprint, m²
89.3
carbon proxy, kgCO₂e/m² (A1–A3)
372
cost index / m² (unitless)
2.96
worst habitable room, daylight
0.605
circulation share of GFA
10%
open space, net of parking
72%
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
U02BR85.36
U12BR78.36
All 14 rooms
RoomTypeDwellingStoreyw × h m
U0@0#0entryU004.53.00 × 1.50
U0@0#1livingU0021.03.00 × 7.00
U0@0#2kitchenU007.53.00 × 2.50
U0@0#3bathroomU005.02.50 × 2.00
U0@0#4bedroom primaryU0018.03.00 × 6.00
U0@0#5bedroom secondaryU0029.34.50 × 6.50
U1@1#0entryU114.02.00 × 2.00
U1@1#1livingU1115.83.50 × 4.50
U1@1#2kitchenU1118.82.50 × 7.50
U1@1#3bathroomU113.81.50 × 2.50
U1@1#4bedroom primaryU1120.34.50 × 4.50
U1@1#5bedroom secondaryU1115.84.50 × 3.50
CORE@0shared circulationshared04.02.00 × 2.00
CORE@1shared circulationshared14.02.00 × 2.00

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