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.

B0008 · knee point · seed 1

B0008-anneal-1-283

Simulated annealingC · meets all 17 benchmark constraints. Brief B0008

Plan drawing of a duplex on a 17.5 by 22.1 metre lot, 2 storeys, 2 dwellings, 12 rooms. Dwelling U0 (1BR) has 5 rooms totalling 103 square metres. Dwelling U1 (1BR) has 5 rooms totalling 103 square metres. Building footprint 114 square metres; open space 272 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.90, daylight 0.82, privacy 0.86, circulation 0.67, carbon 0.80, cost 0.60.
B0008 · anneal · seed 1scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a duplex on a 17.5 by 22.1 metre lot, 2 storeys, 2 dwellings, 12 rooms. Dwelling U0 (1BR) has 5 rooms totalling 103 square metres. Dwelling U1 (1BR) has 5 rooms totalling 103 square metres. Building footprint 114 square metres; open space 272 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.90, daylight 0.82, privacy 0.86, circulation 0.67, carbon 0.80, cost 0.60.

Objective vector

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

density
0.903
daylight
0.816
privacy
0.862
circulation
0.666
carbon
0.803
cost
0.595

Reported quantities

FAR proxy (GFA / lot)
0.59
site utilisation
0.937
gross floor area, m²
228.4
footprint, m²
114.2
carbon proxy, kgCO₂e/m² (A1–A3)
331
cost index / m² (unitless)
2.38
worst habitable room, daylight
0.676
circulation share of GFA
15%
open space, net of parking
70%
courtyard void, m²
0.0
plumbing stacks
2
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
U01BR102.85
U11BR102.85
All 12 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared011.41.25 × 9.10
CORE@1shared circulationshared111.41.25 × 9.10
U0@0#0entryU004.63.15 × 1.45
U0@0#3bathroomU004.73.15 × 1.50
U0@0#4bedroom primaryU0019.43.15 × 6.15
U0@0#1livingU0050.18.15 × 6.15
U0@0#2kitchenU0024.08.15 × 2.95
U1@1#4bedroom primaryU1131.65.80 × 5.45
U1@1#3bathroomU1121.25.80 × 3.65
U1@1#1livingU1127.85.50 × 5.05
U1@1#2kitchenU1116.44.05 × 4.05
U1@1#0entryU115.91.45 × 4.05

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