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.

B0061 · best infeasible · seed 0

B0061-anneal-0-1460

Simulated annealingC · violates 2 of 17 benchmark constraints (2 violations). Brief B0061

Plan drawing of a courtyard on a 21.1 by 25.6 metre lot, 2 storeys, 5 dwellings, 27 rooms. Dwelling U0 (studio) has 4 rooms totalling 34 square metres. Dwelling U1 (1BR) has 5 rooms totalling 73 square metres. Dwelling U2 (1BR) has 5 rooms totalling 46 square metres. Dwelling U3 (1BR) has 5 rooms totalling 73 square metres. Dwelling U4 (2BR) has 6 rooms totalling 80 square metres. Building footprint 197 square metres; open space 335 square metres. This design is infeasible; failing categories: bad proportion, no street access. Objective scores, higher is better: density 0.63, daylight 0.48, privacy 0.80, circulation 0.49, carbon 0.75, cost 0.29.
B0061 · anneal · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a courtyard on a 21.1 by 25.6 metre lot, 2 storeys, 5 dwellings, 27 rooms. Dwelling U0 (studio) has 4 rooms totalling 34 square metres. Dwelling U1 (1BR) has 5 rooms totalling 73 square metres. Dwelling U2 (1BR) has 5 rooms totalling 46 square metres. Dwelling U3 (1BR) has 5 rooms totalling 73 square metres. Dwelling U4 (2BR) has 6 rooms totalling 80 square metres. Building footprint 197 square metres; open space 335 square metres. This design is infeasible; failing categories: bad proportion, no street access. Objective scores, higher is better: density 0.63, daylight 0.48, privacy 0.80, circulation 0.49, carbon 0.75, cost 0.29.

Objective vector

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

density
0.626
daylight
0.475
privacy
0.797
circulation
0.492
carbon
0.750
cost
0.286

Reported quantities

FAR proxy (GFA / lot)
0.73
site utilisation
0.757
gross floor area, m²
394.1
footprint, m²
197.0
carbon proxy, kgCO₂e/m² (A1–A3)
350
cost index / m² (unitless)
2.86
worst habitable room, daylight
0.143
circulation share of GFA
33%
open space, net of parking
64%
courtyard void, m²
51.8
plumbing stacks
8
footprint corners
8
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 failedliving aspect 2.64 > 2.60
  • C07min unit area passed
  • C08unit connectivity passed
  • C09street access failedentry not reachable from the street
  • 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
U0studio33.84
U11BR72.65
U21BR46.25
U31BR72.65
U42BR80.06
All 27 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared044.417.75 × 2.50
CORE@1shared circulationshared144.417.75 × 2.50
U2@0#4bedroom primaryU2013.03.25 × 4.00
U2@0#2kitchenU208.33.25 × 2.55
U2@0#3bathroomU204.02.05 × 1.95
U2@0#0entryU203.41.75 × 1.95
U2@0#1livingU2017.53.80 × 4.60
U0@0#2kitchenU007.23.50 × 2.05
U0@0#3bathroomU005.33.50 × 1.50
U0@0#0entryU004.43.50 × 1.25
U0@0#1livingU0017.03.55 × 4.80
U4@1#4bedroom primaryU4112.13.45 × 3.50
U4@1#1livingU4112.93.45 × 3.75
U4@1#0entryU4114.13.45 × 4.10
U4@1#3bathroomU417.23.60 × 2.00
U4@1#2kitchenU4110.63.60 × 2.95
U4@1#5bedroom secondaryU4123.03.60 × 6.40
U1@0#0entryU108.13.05 × 2.65
U1@0#4bedroom primaryU1013.43.05 × 4.40
U1@0#3bathroomU1013.13.05 × 4.30
U1@0#1livingU1025.53.35 × 7.60
U1@0#2kitchenU1012.63.35 × 3.75
U3@1#0entryU3111.32.75 × 4.10
U3@1#1livingU3119.92.75 × 7.25
U3@1#4bedroom primaryU3118.13.65 × 4.95
U3@1#3bathroomU319.33.65 × 2.55
U3@1#2kitchenU3114.13.65 × 3.85

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