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.

B0051 · best infeasible · seed 1

B0051-anneal-1-713

Simulated annealingC · violates 2 of 17 benchmark constraints (2 violations). Brief B0051

Plan drawing of a fourplex on a 12.0 by 29.2 metre lot, 2 storeys, 4 dwellings, 26 rooms. Dwelling U0 (2BR) has 6 rooms totalling 69 square metres. Dwelling U1 (2BR) has 6 rooms totalling 63 square metres. Dwelling U2 (2BR) has 6 rooms totalling 68 square metres. Dwelling U3 (2BR) has 6 rooms totalling 64 square metres. Building footprint 144 square metres; open space 199 square metres. This design is infeasible; failing categories: bad proportion, no street access. Objective scores, higher is better: density 0.86, daylight 0.36, privacy 0.88, circulation 0.66, carbon 0.77, cost 0.16.
B0051 · anneal · seed 1scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a fourplex on a 12.0 by 29.2 metre lot, 2 storeys, 4 dwellings, 26 rooms. Dwelling U0 (2BR) has 6 rooms totalling 69 square metres. Dwelling U1 (2BR) has 6 rooms totalling 63 square metres. Dwelling U2 (2BR) has 6 rooms totalling 68 square metres. Dwelling U3 (2BR) has 6 rooms totalling 64 square metres. Building footprint 144 square metres; open space 199 square metres. This design is infeasible; failing categories: bad proportion, no street access. Objective scores, higher is better: density 0.86, daylight 0.36, privacy 0.88, circulation 0.66, carbon 0.77, cost 0.16.

Objective vector

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

density
0.864
daylight
0.363
privacy
0.885
circulation
0.656
carbon
0.775
cost
0.163

Reported quantities

FAR proxy (GFA / lot)
0.82
site utilisation
0.912
gross floor area, m²
287.1
footprint, m²
143.6
carbon proxy, kgCO₂e/m² (A1–A3)
341
cost index / m² (unitless)
3.05
worst habitable room, daylight
0.157
circulation share of GFA
15%
open space, net of parking
50%
courtyard void, m²
0.0
plumbing stacks
8
footprint corners
4
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 failedbathroom clear dim 1.45 < 1.50 m
  • C06max room aspect passed
  • 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
U02BR68.96
U12BR63.16
U22BR68.16
U32BR63.96
All 26 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared011.68.25 × 1.40
CORE@1shared circulationshared111.68.25 × 1.40
U1@0#1livingU1026.65.65 × 4.70
U1@0#4bedroom primaryU1012.44.20 × 2.95
U1@0#3bathroomU104.31.45 × 2.95
U1@0#2kitchenU106.12.60 × 2.35
U1@0#0entryU103.32.60 × 1.25
U1@0#5bedroom secondaryU1010.52.60 × 4.05
U0@0#5bedroom secondaryU008.73.30 × 2.65
U0@0#3bathroomU004.11.55 × 2.65
U0@0#1livingU0027.64.85 × 5.70
U0@0#4bedroom primaryU0011.23.40 × 3.30
U0@0#0entryU004.93.40 × 1.45
U0@0#2kitchenU0012.23.40 × 3.60
U3@1#0entryU316.93.30 × 2.10
U3@1#1livingU3113.73.30 × 4.15
U3@1#3bathroomU315.03.30 × 1.50
U3@1#5bedroom secondaryU3111.94.95 × 2.40
U3@1#2kitchenU3111.14.95 × 2.25
U3@1#4bedroom primaryU3115.34.95 × 3.10
U2@1#5bedroom secondaryU2112.34.25 × 2.90
U2@1#4bedroom primaryU2114.04.25 × 3.30
U2@1#3bathroomU218.74.25 × 2.05
U2@1#1livingU2122.44.00 × 5.60
U2@1#0entryU214.51.70 × 2.65
U2@1#2kitchenU216.12.30 × 2.65

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