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.

B0011 · best infeasible · seed 1

B0011-random-1-1016

Random searchB · violates 3 of 17 benchmark constraints (3 violations). Brief B0011

Plan drawing of a triplex on a 16.0 by 22.4 metre lot, 2 storeys, 3 dwellings, 18 rooms. Dwelling U0 (1BR) has 5 rooms totalling 43 square metres. Dwelling U1 (1BR) has 5 rooms totalling 53 square metres. Dwelling U2 (2BR) has 6 rooms totalling 95 square metres. Building footprint 110 square metres; open space 254 square metres. This design is infeasible; failing categories: adjacency violation, insufficient area, no street access. Objective scores, higher is better: density 0.71, daylight 0.78, privacy 0.78, circulation 0.62, carbon 0.76, cost 0.30.
B0011 · random · seed 1scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a triplex on a 16.0 by 22.4 metre lot, 2 storeys, 3 dwellings, 18 rooms. Dwelling U0 (1BR) has 5 rooms totalling 43 square metres. Dwelling U1 (1BR) has 5 rooms totalling 53 square metres. Dwelling U2 (2BR) has 6 rooms totalling 95 square metres. Building footprint 110 square metres; open space 254 square metres. This design is infeasible; failing categories: adjacency violation, insufficient area, no street access. Objective scores, higher is better: density 0.71, daylight 0.78, privacy 0.78, circulation 0.62, carbon 0.76, cost 0.30.

Objective vector

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

density
0.710
daylight
0.776
privacy
0.782
circulation
0.619
carbon
0.762
cost
0.300

Reported quantities

FAR proxy (GFA / lot)
0.61
site utilisation
0.812
gross floor area, m²
219.7
footprint, m²
109.9
carbon proxy, kgCO₂e/m² (A1–A3)
346
cost index / m² (unitless)
2.84
worst habitable room, daylight
0.633
circulation share of GFA
19%
open space, net of parking
65%
courtyard void, m²
0.0
plumbing stacks
4
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 failed1BR 42.8 < 46.0 m^2
  • C08unit connectivity passed
  • C09street access failedentry not reachable from the street
  • C10habitable daylight passed
  • C11required adjacency failedrequired adjacency kitchen-living absent
  • C12forbidden door passed
  • C13open space passed
  • C14courtyard provision passed
  • C15programme complete passed
  • C16unit contiguity passed
  • C17vertical support passed

Dwellings and rooms

DwellingTypeArea m²Rooms
U01BR42.85
U11BR52.65
U22BR95.36
All 18 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared014.51.70 × 8.55
CORE@1shared circulationshared114.51.70 × 8.55
U1@0#2kitchenU109.03.10 × 2.90
U1@0#1livingU1017.53.10 × 5.65
U1@0#4bedroom primaryU1016.03.05 × 5.25
U1@0#0entryU105.03.05 × 1.65
U1@0#3bathroomU105.03.05 × 1.65
U0@0#3bathroomU004.31.95 × 2.20
U0@0#0entryU004.71.95 × 2.40
U0@0#2kitchenU007.71.95 × 3.95
U0@0#1livingU0014.93.05 × 4.90
U0@0#4bedroom primaryU0011.13.05 × 3.65
U2@1#2kitchenU2113.64.40 × 3.10
U2@1#4bedroom primaryU2124.04.40 × 5.45
U2@1#1livingU2134.86.75 × 5.15
U2@1#5bedroom secondaryU2116.04.70 × 3.40
U2@1#0entryU212.82.05 × 1.35
U2@1#3bathroomU214.22.05 × 2.05

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