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.

B0006 · circulation-optimal · seed 1

B0006-cpsat-1-43

CP-SATE · meets all 17 benchmark constraints. Brief B0006

Plan drawing of a adu pair on a 12.8 by 22.2 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 98 square metres. Dwelling U1 (studio) has 4 rooms totalling 61 square metres. Building footprint 105 square metres; open space 181 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.69, daylight 0.63, privacy 0.78, circulation 0.76, carbon 0.70, cost 0.16.
B0006 · cpsat · seed 1scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a adu pair on a 12.8 by 22.2 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 98 square metres. Dwelling U1 (studio) has 4 rooms totalling 61 square metres. Building footprint 105 square metres; open space 181 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.69, daylight 0.63, privacy 0.78, circulation 0.76, carbon 0.70, cost 0.16.

Objective vector

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

density
0.692
daylight
0.630
privacy
0.784
circulation
0.760
carbon
0.702
cost
0.158

Reported quantities

FAR proxy (GFA / lot)
0.61
site utilisation
0.800
gross floor area, m²
173.0
footprint, m²
105.0
carbon proxy, kgCO₂e/m² (A1–A3)
367
cost index / m² (unitless)
3.05
worst habitable room, daylight
0.464
circulation share of GFA
12%
open space, net of parking
63%
courtyard void, m²
0.0
plumbing stacks
4
footprint corners
4
preferred adjacencies met
33%

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
U03BR98.38
U1studio61.34
All 14 rooms
RoomTypeDwellingStoreyw × h m
U0@0#0entryU003.82.50 × 1.50
U0@0#1livingU0018.03.00 × 6.00
U0@0#2diningU007.52.50 × 3.00
U0@0#3kitchenU0011.02.00 × 5.50
U0@0#4bathroomU006.81.50 × 4.50
U0@0#5bedroom primaryU0022.54.50 × 5.00
U0@0#6bedroom secondaryU0015.02.50 × 6.00
U0@0#7bedroom secondaryU0013.82.50 × 5.50
U1@1#0entryU113.82.50 × 1.50
U1@1#1livingU1147.34.50 × 10.50
U1@1#2kitchenU116.32.50 × 2.50
U1@1#3bathroomU114.02.00 × 2.00
CORE@0shared circulationshared06.81.50 × 4.50
CORE@1shared circulationshared16.81.50 × 4.50

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