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.

B0047 · privacy-optimal · seed 1

B0047-anneal-1-301

Simulated annealingC · meets all 17 benchmark constraints. Brief B0047

Plan drawing of a triplex on a 13.2 by 21.0 metre lot, 2 storeys, 3 dwellings, 17 rooms. Dwelling U0 (studio) has 4 rooms totalling 44 square metres. Dwelling U1 (1BR) has 5 rooms totalling 52 square metres. Dwelling U2 (2BR) has 6 rooms totalling 96 square metres. Building footprint 107 square metres; open space 167 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.84, daylight 0.49, privacy 0.88, circulation 0.56, carbon 0.75, cost 0.35.
B0047 · anneal · seed 1scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a triplex on a 13.2 by 21.0 metre lot, 2 storeys, 3 dwellings, 17 rooms. Dwelling U0 (studio) has 4 rooms totalling 44 square metres. Dwelling U1 (1BR) has 5 rooms totalling 52 square metres. Dwelling U2 (2BR) has 6 rooms totalling 96 square metres. Building footprint 107 square metres; open space 167 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.84, daylight 0.49, privacy 0.88, circulation 0.56, carbon 0.75, cost 0.35.

Objective vector

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

density
0.841
daylight
0.492
privacy
0.882
circulation
0.556
carbon
0.755
cost
0.354

Reported quantities

FAR proxy (GFA / lot)
0.77
site utilisation
0.896
gross floor area, m²
214.6
footprint, m²
107.3
carbon proxy, kgCO₂e/m² (A1–A3)
348
cost index / m² (unitless)
2.75
worst habitable room, daylight
0.172
circulation share of GFA
22%
open space, net of parking
61%
courtyard void, m²
0.0
plumbing stacks
3
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 passed
  • C06max room aspect passed
  • C07min unit area passed
  • C08unit connectivity passed
  • C09street access passed
  • 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
U0studio43.64
U11BR52.25
U22BR95.86
All 17 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared011.58.55 × 1.35
CORE@1shared circulationshared111.58.55 × 1.35
U1@0#1livingU1020.45.60 × 3.65
U1@0#2kitchenU1010.34.20 × 2.45
U1@0#0entryU103.41.40 × 2.45
U1@0#3bathroomU104.92.95 × 1.65
U1@0#4bedroom primaryU1013.12.95 × 4.45
U0@0#0entryU007.44.50 × 1.65
U0@0#1livingU0015.54.50 × 3.45
U0@0#2kitchenU0013.04.05 × 3.20
U0@0#3bathroomU007.74.05 × 1.90
U2@1#0entryU2112.74.30 × 2.95
U2@1#1livingU2127.34.30 × 6.35
U2@1#2kitchenU218.24.30 × 1.90
U2@1#5bedroom secondaryU2115.34.25 × 3.60
U2@1#3bathroomU219.14.25 × 2.15
U2@1#4bedroom primaryU2123.24.25 × 5.45

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