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.

B0014 · privacy-optimal · seed 2

B0014-sketch-2-1186

Random sketch + repairF′ · meets all 17 benchmark constraints. Brief B0014

Plan drawing of a duplex on a 15.1 by 21.0 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (2BR) has 6 rooms totalling 89 square metres. Dwelling U1 (2BR) has 6 rooms totalling 89 square metres. Building footprint 101 square metres; open space 212 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.81, daylight 0.81, privacy 0.97, circulation 0.56, carbon 0.77, cost 0.34.
B0014 · sketch · seed 2scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a duplex on a 15.1 by 21.0 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (2BR) has 6 rooms totalling 89 square metres. Dwelling U1 (2BR) has 6 rooms totalling 89 square metres. Building footprint 101 square metres; open space 212 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.81, daylight 0.81, privacy 0.97, circulation 0.56, carbon 0.77, cost 0.34.

Objective vector

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

density
0.813
daylight
0.813
privacy
0.969
circulation
0.560
carbon
0.770
cost
0.339

Reported quantities

FAR proxy (GFA / lot)
0.64
site utilisation
0.879
gross floor area, m²
202.7
footprint, m²
101.3
carbon proxy, kgCO₂e/m² (A1–A3)
343
cost index / m² (unitless)
2.77
worst habitable room, daylight
0.595
circulation share of GFA
19%
open space, net of parking
68%
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
U02BR88.96
U12BR88.96
All 14 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared012.41.40 × 8.85
CORE@1shared circulationshared112.41.40 × 8.85
U0@0#1livingU0032.25.60 × 5.75
U0@0#2kitchenU0017.45.60 × 3.10
U0@0#0entryU006.41.35 × 4.75
U0@0#5bedroom secondaryU0014.73.10 × 4.75
U0@0#4bedroom primaryU0011.72.85 × 4.10
U0@0#3bathroomU006.61.60 × 4.10
U1@1#0entryU117.42.55 × 2.90
U1@1#2kitchenU118.62.95 × 2.90
U1@1#1livingU1132.75.50 × 5.95
U1@1#5bedroom secondaryU1115.04.55 × 3.30
U1@1#3bathroomU118.64.55 × 1.90
U1@1#4bedroom primaryU1116.64.55 × 3.65

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