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.

B0065 · knee point · seed 2

B0065-anneal-2-342

Simulated annealingC · meets all 17 benchmark constraints. Brief B0065

Plan drawing of a triplex on a 16.4 by 19.0 metre lot, 2 storeys, 3 dwellings, 17 rooms. Dwelling U0 (studio) has 4 rooms totalling 49 square metres. Dwelling U1 (1BR) has 5 rooms totalling 58 square metres. Dwelling U2 (2BR) has 6 rooms totalling 107 square metres. Building footprint 122 square metres; open space 195 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.99, daylight 0.59, privacy 0.83, circulation 0.58, carbon 0.78, cost 0.39.
B0065 · anneal · seed 2scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a triplex on a 16.4 by 19.0 metre lot, 2 storeys, 3 dwellings, 17 rooms. Dwelling U0 (studio) has 4 rooms totalling 49 square metres. Dwelling U1 (1BR) has 5 rooms totalling 58 square metres. Dwelling U2 (2BR) has 6 rooms totalling 107 square metres. Building footprint 122 square metres; open space 195 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.99, daylight 0.59, privacy 0.83, circulation 0.58, carbon 0.78, cost 0.39.

Objective vector

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

density
0.994
daylight
0.593
privacy
0.832
circulation
0.579
carbon
0.781
cost
0.387

Reported quantities

FAR proxy (GFA / lot)
0.79
site utilisation
0.996
gross floor area, m²
244.8
footprint, m²
122.4
carbon proxy, kgCO₂e/m² (A1–A3)
339
cost index / m² (unitless)
2.70
worst habitable room, daylight
0.238
circulation share of GFA
21%
open space, net of parking
61%
courtyard void, m²
0.0
plumbing stacks
4
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
U0studio48.84
U11BR57.75
U22BR106.66
All 17 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared015.81.65 × 9.60
CORE@1shared circulationshared115.81.65 × 9.60
U1@0#1livingU1015.95.90 × 2.70
U1@0#2kitchenU108.43.35 × 2.50
U1@0#0entryU106.42.55 × 2.50
U1@0#3bathroomU109.15.20 × 1.75
U1@0#4bedroom primaryU1017.95.20 × 3.45
U0@0#0entryU008.23.40 × 2.40
U0@0#3bathroomU006.83.40 × 2.00
U0@0#1livingU0014.73.35 × 4.40
U0@0#2kitchenU0019.14.35 × 4.40
U2@1#1livingU2135.47.30 × 4.85
U2@1#5bedroom secondaryU2123.54.95 × 4.75
U2@1#3bathroomU2111.22.35 × 4.75
U2@1#2kitchenU2111.23.80 × 2.95
U2@1#0entryU215.33.80 × 1.40
U2@1#4bedroom primaryU2119.93.80 × 5.25

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