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.

B0018 · best infeasible · seed 1

B0018-random-1-1217

Random searchB · violates 1 of 17 benchmark constraints (1 violations). Brief B0018

Plan drawing of a adu pair on a 17.5 by 21.8 metre lot, 2 storeys, 2 dwellings, 15 rooms. Dwelling U0 (3BR) has 8 rooms totalling 99 square metres. Dwelling U1 (1BR) has 5 rooms totalling 99 square metres. Building footprint 118 square metres; open space 270 square metres. This design is infeasible; failing categories: adjacency violation. Objective scores, higher is better: density 0.68, daylight 0.65, privacy 0.86, circulation 0.59, carbon 0.80, cost 0.45.
B0018 · random · seed 1scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a adu pair on a 17.5 by 21.8 metre lot, 2 storeys, 2 dwellings, 15 rooms. Dwelling U0 (3BR) has 8 rooms totalling 99 square metres. Dwelling U1 (1BR) has 5 rooms totalling 99 square metres. Building footprint 118 square metres; open space 270 square metres. This design is infeasible; failing categories: adjacency violation. Objective scores, higher is better: density 0.68, daylight 0.65, privacy 0.86, circulation 0.59, carbon 0.80, cost 0.45.

Objective vector

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

density
0.682
daylight
0.652
privacy
0.865
circulation
0.586
carbon
0.796
cost
0.453

Reported quantities

FAR proxy (GFA / lot)
0.62
site utilisation
0.794
gross floor area, m²
235.2
footprint, m²
117.6
carbon proxy, kgCO₂e/m² (A1–A3)
334
cost index / m² (unitless)
2.60
worst habitable room, daylight
0.507
circulation share of GFA
21%
open space, net of parking
65%
courtyard void, m²
0.0
plumbing stacks
4
footprint corners
4
preferred adjacencies met
25%

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 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
U03BR98.78
U11BR98.75
All 15 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared018.91.80 × 10.50
CORE@1shared circulationshared118.91.80 × 10.50
U0@0#3kitchenU0012.62.25 × 5.60
U0@0#5bedroom primaryU0019.63.50 × 5.60
U0@0#6bedroom secondaryU0013.52.75 × 4.90
U0@0#7bedroom secondaryU0014.73.00 × 4.90
U0@0#1livingU0023.23.65 × 6.35
U0@0#4bathroomU003.81.95 × 1.95
U0@0#0entryU003.31.70 × 1.95
U0@0#2diningU008.03.65 × 2.20
U1@1#1livingU1137.84.35 × 8.70
U1@1#3bathroomU117.84.35 × 1.80
U1@1#2kitchenU1114.95.05 × 2.95
U1@1#0entryU118.65.05 × 1.70
U1@1#4bedroom primaryU1129.55.05 × 5.85

Side by side