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.

B0033 · best infeasible · seed 0

B0033-anneal-0-1463

Simulated annealingC · violates 4 of 17 benchmark constraints (4 violations). Brief B0033

Plan drawing of a fourplex on a 15.0 by 23.9 metre lot, 2 storeys, 4 dwellings, 22 rooms. Dwelling U0 (studio) has 4 rooms totalling 37 square metres. Dwelling U1 (1BR) has 5 rooms totalling 69 square metres. Dwelling U2 (1BR) has 5 rooms totalling 43 square metres. Dwelling U3 (2BR) has 6 rooms totalling 63 square metres. Building footprint 119 square metres; open space 239 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, insufficient area, no street access. Objective scores, higher is better: density 0.99, daylight 0.66, privacy 0.76, circulation 0.64, carbon 0.74, cost 0.26.
B0033 · anneal · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a fourplex on a 15.0 by 23.9 metre lot, 2 storeys, 4 dwellings, 22 rooms. Dwelling U0 (studio) has 4 rooms totalling 37 square metres. Dwelling U1 (1BR) has 5 rooms totalling 69 square metres. Dwelling U2 (1BR) has 5 rooms totalling 43 square metres. Dwelling U3 (2BR) has 6 rooms totalling 63 square metres. Building footprint 119 square metres; open space 239 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, insufficient area, no street access. Objective scores, higher is better: density 0.99, daylight 0.66, privacy 0.76, circulation 0.64, carbon 0.74, cost 0.26.

Objective vector

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

density
0.993
daylight
0.656
privacy
0.759
circulation
0.644
carbon
0.743
cost
0.255

Reported quantities

FAR proxy (GFA / lot)
0.67
site utilisation
0.995
gross floor area, m²
238.7
footprint, m²
119.3
carbon proxy, kgCO₂e/m² (A1–A3)
353
cost index / m² (unitless)
2.90
worst habitable room, daylight
0.393
circulation share of GFA
17%
open space, net of parking
67%
courtyard void, m²
0.0
plumbing stacks
4
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 failedbathroom clear dim 1.40 < 1.50 m
  • C06max room aspect passed
  • C07min unit area failed1BR 43.1 < 46.0 m^2
  • C08unit connectivity passed
  • C09street access failedentry not reachable from the street
  • C10habitable daylight passed
  • C11required adjacency failedrequired adjacency kitchen-living absent
  • C12forbidden door passed
  • C13open space passed
  • C14courtyard provision passed
  • C15programme complete passed
  • C16unit contiguity passed
  • C17vertical support passed

Dwellings and rooms

DwellingTypeArea m²Rooms
U0studio37.44
U11BR68.95
U21BR43.15
U32BR63.26
All 22 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared013.01.20 × 10.85
CORE@1shared circulationshared113.01.20 × 10.85
U1@0#4bedroom primaryU1014.22.70 × 5.25
U1@0#0entryU105.82.70 × 2.15
U1@0#2kitchenU109.32.70 × 3.45
U1@0#3bathroomU1014.83.65 × 4.05
U1@0#1livingU1024.83.65 × 6.80
U0@0#2kitchenU007.91.90 × 4.15
U0@0#3bathroomU004.01.55 × 2.60
U0@0#0entryU002.41.55 × 1.55
U0@0#1livingU0023.13.45 × 6.70
U3@1#5bedroom secondaryU3110.62.75 × 3.85
U3@1#2kitchenU317.22.75 × 2.60
U3@1#4bedroom primaryU3119.43.00 × 6.45
U3@1#3bathroomU314.62.30 × 2.00
U3@1#0entryU313.51.75 × 2.00
U3@1#1livingU3118.04.05 × 4.45
U2@1#1livingU2113.94.65 × 3.00
U2@1#0entryU212.71.95 × 1.40
U2@1#3bathroomU213.82.70 × 1.40
U2@1#2kitchenU219.52.15 × 4.40
U2@1#4bedroom primaryU2113.23.00 × 4.40

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