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.

B0060 · density-optimal · seed 1

B0060-cpsat-1-46

CP-SATE · meets all 17 benchmark constraints. Brief B0060

Plan drawing of a adu pair on a 12.6 by 19.3 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 96 square metres. Dwelling U1 (studio) has 4 rooms totalling 96 square metres. Building footprint 100 square metres; open space 144 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 1.00, daylight 0.54, privacy 0.87, circulation 0.75, carbon 0.78, cost 0.51.
B0060 · cpsat · seed 1scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a adu pair on a 12.6 by 19.3 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 96 square metres. Dwelling U1 (studio) has 4 rooms totalling 96 square metres. Building footprint 100 square metres; open space 144 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 1.00, daylight 0.54, privacy 0.87, circulation 0.75, carbon 0.78, cost 0.51.

Objective vector

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

density
1.000
daylight
0.535
privacy
0.865
circulation
0.747
carbon
0.781
cost
0.508

Reported quantities

FAR proxy (GFA / lot)
0.82
site utilisation
1.000
gross floor area, m²
200.0
footprint, m²
100.0
carbon proxy, kgCO₂e/m² (A1–A3)
339
cost index / m² (unitless)
2.51
worst habitable room, daylight
0.342
circulation share of GFA
9%
open space, net of parking
52%
courtyard void, m²
0.0
plumbing stacks
2
footprint corners
4
preferred adjacencies met
67%

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
U03BR95.58
U1studio95.54
All 14 rooms
RoomTypeDwellingStoreyw × h m
U0@0#0entryU004.51.50 × 3.00
U0@0#1livingU0021.03.00 × 7.00
U0@0#2diningU0017.53.50 × 5.00
U0@0#3kitchenU006.02.00 × 3.00
U0@0#4bathroomU007.03.50 × 2.00
U0@0#5bedroom primaryU0024.53.50 × 7.00
U0@0#6bedroom secondaryU007.52.50 × 3.00
U0@0#7bedroom secondaryU007.52.50 × 3.00
U1@1#0entryU113.81.50 × 2.50
U1@1#1livingU1122.55.00 × 4.50
U1@1#2kitchenU1150.05.00 × 10.00
U1@1#3bathroomU1119.33.50 × 5.50
CORE@0shared circulationshared04.51.50 × 3.00
CORE@1shared circulationshared14.51.50 × 3.00

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