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.

B0031 · best infeasible · seed 0

B0031-anneal-0-737

Simulated annealingC · violates 4 of 17 benchmark constraints (6 violations). Brief B0031

Plan drawing of a courtyard on a 16.2 by 25.5 metre lot, 2 storeys, 4 dwellings, 25 rooms. Dwelling U0 (1BR) has 5 rooms totalling 64 square metres. Dwelling U1 (2BR) has 6 rooms totalling 67 square metres. Dwelling U2 (2BR) has 6 rooms totalling 64 square metres. Dwelling U3 (2BR) has 6 rooms totalling 67 square metres. Building footprint 148 square metres; open space 262 square metres. This design is infeasible; failing categories: bad proportion, daylight failure, open space failure. Objective scores, higher is better: density 0.69, daylight 0.37, privacy 0.75, circulation 0.61, carbon 0.69, cost 0.23.
B0031 · anneal · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a courtyard on a 16.2 by 25.5 metre lot, 2 storeys, 4 dwellings, 25 rooms. Dwelling U0 (1BR) has 5 rooms totalling 64 square metres. Dwelling U1 (2BR) has 6 rooms totalling 67 square metres. Dwelling U2 (2BR) has 6 rooms totalling 64 square metres. Dwelling U3 (2BR) has 6 rooms totalling 67 square metres. Building footprint 148 square metres; open space 262 square metres. This design is infeasible; failing categories: bad proportion, daylight failure, open space failure. Objective scores, higher is better: density 0.69, daylight 0.37, privacy 0.75, circulation 0.61, carbon 0.69, cost 0.23.

Objective vector

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

density
0.693
daylight
0.373
privacy
0.753
circulation
0.612
carbon
0.688
cost
0.226

Reported quantities

FAR proxy (GFA / lot)
0.72
site utilisation
0.800
gross floor area, m²
296.0
footprint, m²
148.0
carbon proxy, kgCO₂e/m² (A1–A3)
372
cost index / m² (unitless)
2.95
worst habitable room, daylight
0.000
circulation share of GFA
19%
open space, net of parking
64%
courtyard void, m²
23.0
plumbing stacks
5
footprint corners
8
preferred adjacencies met
75%

Benchmark constraints

Benchmark rules, not building code.

  • C01geometry valid passed
  • C02no overlap passed
  • C03within buildable passed
  • C04min room area passed
  • C05min room dimension failedentry clear dim 1.05 < 1.20 m
  • C06max room aspect failedliving aspect 2.72 > 2.60living aspect 2.64 > 2.60kitchen aspect 4.00 > 3.00
  • C07min unit area passed
  • C08unit connectivity passed
  • C09street access passed
  • C10habitable daylight failedbedroom_primary has 0.00 m of window-capable wall
  • C11required adjacency passed
  • C12forbidden door passed
  • C13open space passed
  • C14courtyard provision failedcourtyard narrowest extent 2.0 m
  • C15programme complete passed
  • C16unit contiguity passed
  • C17vertical support passed

Dwellings and rooms

DwellingTypeArea m²Rooms
U01BR63.65
U12BR67.56
U22BR63.66
U32BR67.56
All 25 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared017.013.60 × 1.25
CORE@1shared circulationshared117.013.60 × 1.25
U1@0#4bedroom primaryU1016.93.35 × 5.05
U1@0#3bathroomU107.23.35 × 2.15
U1@0#0entryU104.43.35 × 1.30
U1@0#5bedroom secondaryU108.93.35 × 2.65
U1@0#2kitchenU1010.32.70 × 3.80
U1@0#1livingU1019.82.70 × 7.35
U3@1#0entryU3110.52.80 × 3.75
U3@1#1livingU3120.72.80 × 7.40
U3@1#3bathroomU314.93.25 × 1.50
U3@1#2kitchenU3111.13.25 × 3.40
U3@1#5bedroom secondaryU319.33.25 × 2.85
U3@1#4bedroom primaryU3111.13.25 × 3.40
U0@0#2kitchenU0019.42.20 × 8.80
U0@0#0entryU005.22.20 × 2.35
U0@0#4bedroom primaryU0015.83.50 × 4.50
U0@0#3bathroomU0010.33.50 × 2.95
U0@0#1livingU0012.93.50 × 3.70
U2@1#5bedroom secondaryU2111.42.25 × 5.05
U2@1#2kitchenU217.42.25 × 3.30
U2@1#3bathroomU216.32.25 × 2.80
U2@1#0entryU213.63.45 × 1.05
U2@1#1livingU2122.63.45 × 6.55
U2@1#4bedroom primaryU2112.23.45 × 3.55

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