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.

B0059 · circulation-optimal · seed 1

B0059-cpsat-1-14

CP-SATE · meets all 17 benchmark constraints. Brief B0059

Plan drawing of a triplex on a 16.8 by 22.7 metre lot, 2 storeys, 3 dwellings, 18 rooms. Dwelling U0 (1BR) has 5 rooms totalling 70 square metres. Dwelling U1 (1BR) has 5 rooms totalling 90 square metres. Dwelling U2 (2BR) has 6 rooms totalling 130 square metres. Building footprint 169 square metres; open space 214 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.80, daylight 0.66, privacy 0.72, circulation 0.77, carbon 0.79, cost 0.56.
B0059 · cpsat · seed 1scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a triplex on a 16.8 by 22.7 metre lot, 2 storeys, 3 dwellings, 18 rooms. Dwelling U0 (1BR) has 5 rooms totalling 70 square metres. Dwelling U1 (1BR) has 5 rooms totalling 90 square metres. Dwelling U2 (2BR) has 6 rooms totalling 130 square metres. Building footprint 169 square metres; open space 214 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.80, daylight 0.66, privacy 0.72, circulation 0.77, carbon 0.79, cost 0.56.

Objective vector

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

density
0.796
daylight
0.662
privacy
0.724
circulation
0.770
carbon
0.789
cost
0.561

Reported quantities

FAR proxy (GFA / lot)
0.80
site utilisation
0.867
gross floor area, m²
306.8
footprint, m²
169.0
carbon proxy, kgCO₂e/m² (A1–A3)
336
cost index / m² (unitless)
2.43
worst habitable room, daylight
0.412
circulation share of GFA
9%
open space, net of parking
56%
courtyard void, m²
0.0
plumbing stacks
3
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
U01BR70.35
U11BR90.55
U22BR129.56
All 18 rooms
RoomTypeDwellingStoreyw × h m
U0@0#0entryU002.31.50 × 1.50
U0@0#1livingU0015.03.00 × 5.00
U0@0#2kitchenU0032.04.00 × 8.00
U0@0#3bathroomU006.01.50 × 4.00
U0@0#4bedroom primaryU0015.03.00 × 5.00
U1@0#0entryU104.53.00 × 1.50
U1@0#1livingU1018.03.00 × 6.00
U1@0#2kitchenU1036.06.00 × 6.00
U1@0#3bathroomU104.02.00 × 2.00
U1@0#4bedroom primaryU1028.04.00 × 7.00
U2@1#0entryU214.53.00 × 1.50
U2@1#1livingU2122.53.00 × 7.50
U2@1#2kitchenU2111.02.00 × 5.50
U2@1#3bathroomU2158.54.50 × 13.00
U2@1#4bedroom primaryU2118.03.00 × 6.00
U2@1#5bedroom secondaryU2115.02.50 × 6.00
CORE@0shared circulationshared08.31.50 × 5.50
CORE@1shared circulationshared18.31.50 × 5.50

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