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.

B0017 · best infeasible · seed 2

B0017-nsga2-2-1292

NSGA-IID · violates 1 of 17 benchmark constraints (2 violations). Brief B0017

Plan drawing of a triplex on a 16.3 by 19.4 metre lot, 2 storeys, 3 dwellings, 20 rooms. Dwelling U0 (2BR) has 6 rooms totalling 60 square metres. Dwelling U1 (2BR) has 6 rooms totalling 58 square metres. Dwelling U2 (2BR) has 6 rooms totalling 118 square metres. Building footprint 131 square metres; open space 187 square metres. This design is infeasible; failing categories: insufficient area. Objective scores, higher is better: density 1.00, daylight 0.59, privacy 0.83, circulation 0.68, carbon 0.79, cost 0.43.
B0017 · nsga2 · seed 2scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a triplex on a 16.3 by 19.4 metre lot, 2 storeys, 3 dwellings, 20 rooms. Dwelling U0 (2BR) has 6 rooms totalling 60 square metres. Dwelling U1 (2BR) has 6 rooms totalling 58 square metres. Dwelling U2 (2BR) has 6 rooms totalling 118 square metres. Building footprint 131 square metres; open space 187 square metres. This design is infeasible; failing categories: insufficient area. Objective scores, higher is better: density 1.00, daylight 0.59, privacy 0.83, circulation 0.68, carbon 0.79, cost 0.43.

Objective vector

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

density
1.000
daylight
0.591
privacy
0.826
circulation
0.676
carbon
0.787
cost
0.428

Reported quantities

FAR proxy (GFA / lot)
0.83
site utilisation
1.000
gross floor area, m²
261.4
footprint, m²
130.7
carbon proxy, kgCO₂e/m² (A1–A3)
337
cost index / m² (unitless)
2.64
worst habitable room, daylight
0.360
circulation share of GFA
15%
open space, net of parking
54%
courtyard void, m²
0.0
plumbing stacks
4
footprint corners
4
preferred adjacencies met
67%

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 failed2BR 60.4 < 63.0 m^22BR 57.9 < 63.0 m^2
  • 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
U02BR60.46
U12BR57.96
U22BR118.36
All 20 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared012.41.25 × 9.90
CORE@1shared circulationshared112.41.25 × 9.90
U0@0#5bedroom secondaryU009.32.95 × 3.15
U0@0#3bathroomU004.92.95 × 1.65
U0@0#4bedroom primaryU0015.02.95 × 5.10
U0@0#2kitchenU008.21.90 × 4.30
U0@0#0entryU005.41.25 × 4.30
U0@0#1livingU0017.63.15 × 5.60
U1@0#2kitchenU106.92.30 × 3.00
U1@0#0entryU102.82.30 × 1.20
U1@0#3bathroomU104.52.30 × 1.95
U1@0#5bedroom secondaryU108.62.30 × 3.75
U1@0#1livingU1022.03.55 × 6.20
U1@0#4bedroom primaryU1013.13.55 × 3.70
U2@1#3bathroomU2111.02.15 × 5.10
U2@1#5bedroom secondaryU2117.33.40 × 5.10
U2@1#4bedroom primaryU2126.65.55 × 4.80
U2@1#1livingU2140.66.40 × 6.35
U2@1#2kitchenU2116.94.75 × 3.55
U2@1#0entryU215.91.65 × 3.55

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