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.

B0045 · best infeasible · seed 0

B0045-anneal-0-742

Simulated annealingC · violates 3 of 17 benchmark constraints (5 violations). Brief B0045

Plan drawing of a fourplex on a 17.0 by 26.0 metre lot, 2 storeys, 4 dwellings, 26 rooms. Dwelling U0 (2BR) has 6 rooms totalling 72 square metres. Dwelling U1 (2BR) has 6 rooms totalling 79 square metres. Dwelling U2 (2BR) has 6 rooms totalling 63 square metres. Dwelling U3 (2BR) has 6 rooms totalling 88 square metres. Building footprint 166 square metres; open space 273 square metres. This design is infeasible; failing categories: bad proportion, no street access. Objective scores, higher is better: density 0.81, daylight 0.58, privacy 0.85, circulation 0.62, carbon 0.79, cost 0.40.
B0045 · anneal · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a fourplex on a 17.0 by 26.0 metre lot, 2 storeys, 4 dwellings, 26 rooms. Dwelling U0 (2BR) has 6 rooms totalling 72 square metres. Dwelling U1 (2BR) has 6 rooms totalling 79 square metres. Dwelling U2 (2BR) has 6 rooms totalling 63 square metres. Dwelling U3 (2BR) has 6 rooms totalling 88 square metres. Building footprint 166 square metres; open space 273 square metres. This design is infeasible; failing categories: bad proportion, no street access. Objective scores, higher is better: density 0.81, daylight 0.58, privacy 0.85, circulation 0.62, carbon 0.79, cost 0.40.

Objective vector

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

density
0.807
daylight
0.577
privacy
0.846
circulation
0.619
carbon
0.795
cost
0.396

Reported quantities

FAR proxy (GFA / lot)
0.75
site utilisation
0.875
gross floor area, m²
332.8
footprint, m²
166.4
carbon proxy, kgCO₂e/m² (A1–A3)
334
cost index / m² (unitless)
2.69
worst habitable room, daylight
0.180
circulation share of GFA
15%
open space, net of parking
62%
courtyard void, m²
0.0
plumbing stacks
6
footprint corners
4
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 failedbedroom_secondary clear dim 2.10 < 2.20 m
  • C06max room aspect failedbedroom_primary aspect 2.93 > 2.40living aspect 2.91 > 2.60living aspect 2.80 > 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
U02BR72.26
U12BR78.76
U22BR63.26
U32BR87.76
All 26 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared015.51.20 × 12.90
CORE@1shared circulationshared115.51.20 × 12.90
U0@0#0entryU004.52.20 × 2.05
U0@0#2kitchenU0010.12.20 × 4.60
U0@0#5bedroom secondaryU008.12.20 × 3.70
U0@0#3bathroomU005.62.20 × 2.55
U0@0#1livingU0028.93.40 × 8.50
U0@0#4bedroom primaryU0015.03.40 × 4.40
U1@0#2kitchenU1012.52.95 × 4.25
U1@0#4bedroom primaryU1025.52.95 × 8.65
U1@0#1livingU1017.53.15 × 5.55
U1@0#3bathroomU104.91.90 × 2.60
U1@0#0entryU103.31.25 × 2.60
U1@0#5bedroom secondaryU1015.03.15 × 4.75
U3@1#0entryU316.73.95 × 1.70
U3@1#3bathroomU316.73.95 × 1.70
U3@1#5bedroom secondaryU3117.03.95 × 4.30
U3@1#4bedroom primaryU3120.53.95 × 5.20
U3@1#1livingU3123.72.85 × 8.30
U3@1#2kitchenU3113.12.85 × 4.60
U2@1#4bedroom primaryU2114.12.80 × 5.05
U2@1#1livingU2122.02.80 × 7.85
U2@1#5bedroom secondaryU217.72.10 × 3.65
U2@1#0entryU215.42.10 × 2.55
U2@1#3bathroomU214.12.10 × 1.95
U2@1#2kitchenU2110.02.10 × 4.75

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