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.

B0062 · density-optimal · seed 0

B0062-heuristic-0~r0

HeuristicA · meets all 17 benchmark constraints. Brief B0062

Plan drawing of a duplex on a 16.1 by 18.5 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (1BR) has 5 rooms totalling 97 square metres. Dwelling U1 (2BR) has 6 rooms totalling 97 square metres. Building footprint 115 square metres; open space 177 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 1.00, daylight 0.56, privacy 0.76, circulation 0.61, carbon 0.80, cost 0.67.
B0062 · heuristic · seed 0scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a duplex on a 16.1 by 18.5 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (1BR) has 5 rooms totalling 97 square metres. Dwelling U1 (2BR) has 6 rooms totalling 97 square metres. Building footprint 115 square metres; open space 177 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 1.00, daylight 0.56, privacy 0.76, circulation 0.61, carbon 0.80, cost 0.67.

Objective vector

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

density
1.000
daylight
0.556
privacy
0.764
circulation
0.607
carbon
0.804
cost
0.673

Reported quantities

FAR proxy (GFA / lot)
0.77
site utilisation
1.000
gross floor area, m²
230.6
footprint, m²
115.3
carbon proxy, kgCO₂e/m² (A1–A3)
331
cost index / m² (unitless)
2.26
worst habitable room, daylight
0.331
circulation share of GFA
19%
open space, net of parking
61%
courtyard void, m²
0.0
plumbing stacks
1
footprint corners
4
preferred adjacencies met
0%

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
U01BR97.25
U12BR97.26
All 13 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared018.11.95 × 9.30
CORE@1shared circulationshared118.11.95 × 9.30
U0@0#2kitchenU0012.32.10 × 5.85
U0@0#3bathroomU003.42.10 × 1.60
U0@0#0entryU003.92.10 × 1.85
U0@0#1livingU0035.83.85 × 9.30
U0@0#4bedroom primaryU0041.94.50 × 9.30
U1@1#2kitchenU1113.02.80 × 4.65
U1@1#3bathroomU118.82.80 × 3.15
U1@1#0entryU114.22.80 × 1.50
U1@1#1livingU1141.44.45 × 9.30
U1@1#4bedroom primaryU1117.13.20 × 5.35
U1@1#5bedroom secondaryU1112.63.20 × 3.95

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