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.

B0048 · best infeasible · seed 2

B0048-random-2-952

Random searchB · violates 4 of 17 benchmark constraints (6 violations). Brief B0048

Plan drawing of a adu pair on a 14.2 by 18.4 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 74 square metres. Dwelling U1 (studio) has 4 rooms totalling 74 square metres. Building footprint 88 square metres; open space 171 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, insufficient area, no street access. Objective scores, higher is better: density 0.93, daylight 0.58, privacy 0.80, circulation 0.58, carbon 0.75, cost 0.32.
B0048 · random · seed 2scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a adu pair on a 14.2 by 18.4 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 74 square metres. Dwelling U1 (studio) has 4 rooms totalling 74 square metres. Building footprint 88 square metres; open space 171 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, insufficient area, no street access. Objective scores, higher is better: density 0.93, daylight 0.58, privacy 0.80, circulation 0.58, carbon 0.75, cost 0.32.

Objective vector

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

density
0.931
daylight
0.584
privacy
0.799
circulation
0.578
carbon
0.745
cost
0.317

Reported quantities

FAR proxy (GFA / lot)
0.67
site utilisation
0.955
gross floor area, m²
176.0
footprint, m²
88.0
carbon proxy, kgCO₂e/m² (A1–A3)
352
cost index / m² (unitless)
2.81
worst habitable room, daylight
0.292
circulation share of GFA
20%
open space, net of parking
66%
courtyard void, m²
0.0
plumbing stacks
3
footprint corners
4
preferred adjacencies met
33%

Benchmark constraints

Benchmark rules, not building code.

  • C01geometry valid passed
  • C02no overlap passed
  • C03within buildable passed
  • C04min room area passed
  • C05min room dimension faileddining clear dim 1.90 < 2.20 mbedroom_secondary clear dim 1.95 < 2.20 mentry clear dim 1.15 < 1.20 m
  • C06max room aspect passed
  • C07min unit area failed3BR 74.0 < 84.0 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
U03BR74.08
U1studio74.04
All 14 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared014.01.75 × 8.00
CORE@1shared circulationshared114.01.75 × 8.00
U0@0#0entryU003.01.90 × 1.60
U0@0#4bathroomU003.82.40 × 1.60
U0@0#1livingU0019.44.30 × 4.50
U0@0#2diningU008.24.30 × 1.90
U0@0#6bedroom secondaryU0011.63.00 × 3.85
U0@0#7bedroom secondaryU007.51.95 × 3.85
U0@0#5bedroom primaryU0012.93.10 × 4.15
U0@0#3kitchenU007.71.85 × 4.15
U1@1#2kitchenU1116.83.70 × 4.55
U1@1#3bathroomU118.53.70 × 2.30
U1@1#0entryU114.33.70 × 1.15
U1@1#1livingU1144.45.55 × 8.00

Side by side