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.

B0029 · best infeasible · seed 0

B0029-heuristic-0

HeuristicA · violates 1 of 17 benchmark constraints (1 violations). Brief B0029

Plan drawing of a triplex on a 14.1 by 21.5 metre lot, 2 storeys, 3 dwellings, 17 rooms. Dwelling U0 (studio) has 4 rooms totalling 51 square metres. Dwelling U1 (1BR) has 5 rooms totalling 52 square metres. Dwelling U2 (2BR) has 6 rooms totalling 102 square metres. Building footprint 118 square metres; open space 181 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.88, daylight 0.64, privacy 0.75, circulation 0.62, carbon 0.77, cost 0.49.
B0029 · heuristic · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a triplex on a 14.1 by 21.5 metre lot, 2 storeys, 3 dwellings, 17 rooms. Dwelling U0 (studio) has 4 rooms totalling 51 square metres. Dwelling U1 (1BR) has 5 rooms totalling 52 square metres. Dwelling U2 (2BR) has 6 rooms totalling 102 square metres. Building footprint 118 square metres; open space 181 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.88, daylight 0.64, privacy 0.75, circulation 0.62, carbon 0.77, cost 0.49.

Objective vector

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

density
0.881
daylight
0.637
privacy
0.745
circulation
0.623
carbon
0.768
cost
0.491

Reported quantities

FAR proxy (GFA / lot)
0.78
site utilisation
0.922
gross floor area, m²
235.6
footprint, m²
117.8
carbon proxy, kgCO₂e/m² (A1–A3)
344
cost index / m² (unitless)
2.54
worst habitable room, daylight
0.437
circulation share of GFA
18%
open space, net of parking
56%
courtyard void, m²
0.0
plumbing stacks
2
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 failedliving aspect 3.13 > 2.60
  • 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
U0studio50.74
U11BR51.65
U22BR102.36
All 17 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared015.51.30 × 11.90
CORE@1shared circulationshared115.51.30 × 11.90
U1@0#2kitchenU107.42.75 × 2.70
U1@0#3bathroomU104.32.75 × 1.55
U1@0#0entryU104.82.75 × 1.75
U1@0#1livingU1017.12.85 × 6.00
U1@0#4bedroom primaryU1018.03.00 × 6.00
U0@0#0entryU003.73.10 × 1.20
U0@0#3bathroomU004.83.10 × 1.55
U0@0#2kitchenU009.83.10 × 3.15
U0@0#1livingU0032.55.50 × 5.90
U2@1#2kitchenU2112.22.05 × 5.95
U2@1#3bathroomU219.72.05 × 4.75
U2@1#0entryU212.52.05 × 1.20
U2@1#1livingU2145.23.80 × 11.90
U2@1#4bedroom primaryU2116.82.75 × 6.10
U2@1#5bedroom secondaryU2115.92.75 × 5.80

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