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.

B0000 · carbon-optimal · seed 0

B0000-cpsat-0-15

CP-SATE · meets all 17 benchmark constraints. Brief B0000

Plan drawing of a adu pair on a 16.5 by 19.9 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 108 square metres. Dwelling U1 (1BR) has 5 rooms totalling 106 square metres. Building footprint 112 square metres; open space 218 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.91, daylight 0.52, privacy 0.89, circulation 0.73, carbon 0.81, cost 0.60.
B0000 · cpsat · seed 0scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a adu pair on a 16.5 by 19.9 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (2BR) has 6 rooms totalling 108 square metres. Dwelling U1 (1BR) has 5 rooms totalling 106 square metres. Building footprint 112 square metres; open space 218 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.91, daylight 0.52, privacy 0.89, circulation 0.73, carbon 0.81, cost 0.60.

Objective vector

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

density
0.910
daylight
0.518
privacy
0.891
circulation
0.733
carbon
0.813
cost
0.596

Reported quantities

FAR proxy (GFA / lot)
0.68
site utilisation
0.941
gross floor area, m²
223.0
footprint, m²
112.5
carbon proxy, kgCO₂e/m² (A1–A3)
327
cost index / m² (unitless)
2.38
worst habitable room, daylight
0.304
circulation share of GFA
11%
open space, net of parking
66%
courtyard void, m²
0.0
plumbing stacks
2
footprint corners
4
preferred adjacencies met
100%

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
U02BR107.56
U11BR105.55
All 13 rooms
RoomTypeDwellingStoreyw × h m
U0@0#0entryU003.81.50 × 2.50
U0@0#1livingU0015.84.50 × 3.50
U0@0#2kitchenU006.32.50 × 2.50
U0@0#3bathroomU005.31.50 × 3.50
U0@0#4bedroom primaryU0018.06.00 × 3.00
U0@0#5bedroom secondaryU0058.56.50 × 9.00
U1@1#0entryU1111.02.00 × 5.50
U1@1#1livingU1131.53.50 × 9.00
U1@1#2kitchenU1127.03.00 × 9.00
U1@1#3bathroomU1124.04.00 × 6.00
U1@1#4bedroom primaryU1112.04.00 × 3.00
CORE@0shared circulationshared05.02.00 × 2.50
CORE@1shared circulationshared15.02.00 × 2.50

Side by side