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.

B0037 · best infeasible · seed 0

B0037-anneal-0-738

Simulated annealingC · violates 2 of 17 benchmark constraints (3 violations). Brief B0037

Plan drawing of a courtyard on a 19.7 by 27.7 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 46 square metres. Dwelling U2 (1BR) has 5 rooms totalling 73 square metres. Dwelling U3 (1BR) has 5 rooms totalling 73 square metres. Dwelling U4 (2BR) has 6 rooms totalling 80 square metres. Building footprint 173 square metres; open space 363 square metres. This design is infeasible; failing categories: insufficient area, no street access. Objective scores, higher is better: density 0.47, daylight 0.59, privacy 0.75, circulation 0.59, carbon 0.71, cost 0.25.
B0037 · anneal · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a courtyard on a 19.7 by 27.7 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 46 square metres. Dwelling U2 (1BR) has 5 rooms totalling 73 square metres. Dwelling U3 (1BR) has 5 rooms totalling 73 square metres. Dwelling U4 (2BR) has 6 rooms totalling 80 square metres. Building footprint 173 square metres; open space 363 square metres. This design is infeasible; failing categories: insufficient area, no street access. Objective scores, higher is better: density 0.47, daylight 0.59, privacy 0.75, circulation 0.59, carbon 0.71, cost 0.25.

Objective vector

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

density
0.471
daylight
0.593
privacy
0.749
circulation
0.590
carbon
0.712
cost
0.247

Reported quantities

FAR proxy (GFA / lot)
0.63
site utilisation
0.656
gross floor area, m²
346.2
footprint, m²
173.1
carbon proxy, kgCO₂e/m² (A1–A3)
364
cost index / m² (unitless)
2.92
worst habitable room, daylight
0.205
circulation share of GFA
21%
open space, net of parking
68%
courtyard void, m²
36.0
plumbing stacks
6
footprint corners
8
preferred adjacencies met
50%

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 failed1BR 45.5 < 46.0 m^2
  • C08unit connectivity passed
  • C09street access failedentry not reachable from the streetentry 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
U0studio34.04
U11BR45.55
U21BR72.95
U31BR72.95
U42BR79.56
All 27 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared020.715.30 × 1.35
CORE@1shared circulationshared120.715.30 × 1.35
U1@0#0entryU104.53.25 × 1.40
U1@0#1livingU1017.93.25 × 5.50
U1@0#4bedroom primaryU1011.23.35 × 3.35
U1@0#3bathroomU105.43.35 × 1.60
U1@0#2kitchenU106.53.35 × 1.95
U0@0#3bathroomU005.33.55 × 1.50
U0@0#1livingU0013.03.55 × 3.65
U0@0#2kitchenU009.03.05 × 2.95
U0@0#0entryU006.73.05 × 2.20
U4@1#4bedroom primaryU4113.83.45 × 4.00
U4@1#1livingU4127.83.45 × 8.05
U4@1#3bathroomU415.23.15 × 1.65
U4@1#2kitchenU4112.33.15 × 3.90
U4@1#0entryU419.03.15 × 2.85
U4@1#5bedroom secondaryU4111.53.15 × 3.65
U2@0#1livingU2017.93.00 × 5.95
U2@0#2kitchenU2018.33.00 × 6.10
U2@0#3bathroomU2010.43.05 × 3.40
U2@0#0entryU207.03.05 × 2.30
U2@0#4bedroom primaryU2019.43.05 × 6.35
U3@1#4bedroom primaryU3130.36.05 × 5.00
U3@1#2kitchenU3110.74.75 × 2.25
U3@1#0entryU312.91.30 × 2.25
U3@1#3bathroomU318.91.85 × 4.80
U3@1#1livingU3120.24.20 × 4.80

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