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.

B0065 · best infeasible · seed 0

B0065-heuristic-0~r0

HeuristicA · violates 1 of 17 benchmark constraints (1 violations). Brief B0065

Plan drawing of a triplex on a 16.4 by 19.0 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 56 square metres. Dwelling U2 (2BR) has 6 rooms totalling 106 square metres. Building footprint 123 square metres; open space 195 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 1.00, daylight 0.43, privacy 0.74, circulation 0.63, carbon 0.77, cost 0.51.
B0065 · heuristic · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a triplex on a 16.4 by 19.0 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 56 square metres. Dwelling U2 (2BR) has 6 rooms totalling 106 square metres. Building footprint 123 square metres; open space 195 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 1.00, daylight 0.43, privacy 0.74, circulation 0.63, carbon 0.77, cost 0.51.

Objective vector

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

density
1.000
daylight
0.429
privacy
0.736
circulation
0.626
carbon
0.772
cost
0.514

Reported quantities

FAR proxy (GFA / lot)
0.79
site utilisation
1.000
gross floor area, m²
245.8
footprint, m²
122.9
carbon proxy, kgCO₂e/m² (A1–A3)
342
cost index / m² (unitless)
2.50
worst habitable room, daylight
0.135
circulation share of GFA
17%
open space, net of parking
61%
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 3.61 > 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
U0studio50.64
U11BR55.65
U22BR106.26
All 17 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared016.612.80 × 1.30
CORE@1shared circulationshared116.612.80 × 1.30
U1@0#4bedroom primaryU1018.86.70 × 2.80
U1@0#1livingU1021.46.70 × 3.20
U1@0#2kitchenU107.83.40 × 2.30
U1@0#3bathroomU104.82.10 × 2.30
U1@0#0entryU102.81.20 × 2.30
U0@0#1livingU0031.76.10 × 5.20
U0@0#0entryU003.71.20 × 3.10
U0@0#3bathroomU006.01.95 × 3.10
U0@0#2kitchenU009.12.95 × 3.10
U2@1#4bedroom primaryU2118.16.60 × 2.75
U2@1#5bedroom secondaryU2117.16.20 × 2.75
U2@1#1livingU2145.412.80 × 3.55
U2@1#2kitchenU2111.35.65 × 2.00
U2@1#3bathroomU2111.55.75 × 2.00
U2@1#0entryU212.81.40 × 2.00

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