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.

B0010 · best infeasible · seed 2

B0010-random-2-44

Random searchB · violates 2 of 17 benchmark constraints (3 violations). Brief B0010

Plan drawing of a rowhouse on a 24.4 by 28.2 metre lot, 2 storeys, 4 dwellings, 36 rooms. Dwelling U0 (2BR) has 9 rooms totalling 112 square metres. Dwelling U1 (2BR) has 9 rooms totalling 99 square metres. Dwelling U2 (2BR) has 9 rooms totalling 109 square metres. Dwelling U3 (2BR) has 9 rooms totalling 133 square metres. Building footprint 226 square metres; open space 456 square metres. This design is infeasible; failing categories: bad proportion, daylight failure. Objective scores, higher is better: density 0.58, daylight 0.65, privacy 0.88, circulation 0.48, carbon 0.83, cost 0.44.
B0010 · random · seed 2scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a rowhouse on a 24.4 by 28.2 metre lot, 2 storeys, 4 dwellings, 36 rooms. Dwelling U0 (2BR) has 9 rooms totalling 112 square metres. Dwelling U1 (2BR) has 9 rooms totalling 99 square metres. Dwelling U2 (2BR) has 9 rooms totalling 109 square metres. Dwelling U3 (2BR) has 9 rooms totalling 133 square metres. Building footprint 226 square metres; open space 456 square metres. This design is infeasible; failing categories: bad proportion, daylight failure. Objective scores, higher is better: density 0.58, daylight 0.65, privacy 0.88, circulation 0.48, carbon 0.83, cost 0.44.

Objective vector

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

density
0.582
daylight
0.655
privacy
0.883
circulation
0.480
carbon
0.833
cost
0.443

Reported quantities

FAR proxy (GFA / lot)
0.66
site utilisation
0.729
gross floor area, m²
452.6
footprint, m²
226.3
carbon proxy, kgCO₂e/m² (A1–A3)
320
cost index / m² (unitless)
2.61
worst habitable room, daylight
0.000
circulation share of GFA
26%
open space, net of parking
67%
courtyard void, m²
0.0
plumbing stacks
8
footprint corners
4
preferred adjacencies met
63%

Benchmark constraints

Benchmark rules, not building code.

  • C01geometry valid passed
  • C02no overlap passed
  • C03within buildable passed
  • C04min room area passed
  • C05min room dimension failedentry clear dim 1.10 < 1.20 mbathroom clear dim 1.40 < 1.50 m
  • C06max room aspect passed
  • C07min unit area passed
  • C08unit connectivity passed
  • C09street access passed
  • C10habitable daylight failedkitchen has 0.00 m of window-capable wall
  • 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
U02BR112.29
U12BR98.89
U22BR108.69
U32BR133.09
All 36 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0015.32.15 × 7.10
STAIR:U0@1circulationU0115.32.15 × 7.10
U0@0#1livingU0022.03.10 × 7.10
U0@0#0entryU004.82.65 × 1.80
U0@0#3bathroomU004.82.65 × 1.80
U0@0#2kitchenU009.32.65 × 3.50
U0@1#5bedroom primaryU0121.33.00 × 7.10
U0@1#7bathroomU017.22.75 × 2.60
U0@1#6bedroom secondaryU0112.42.75 × 4.50
STAIR:U1@0circulationU1012.21.95 × 6.25
STAIR:U1@1circulationU1112.21.95 × 6.25
U1@0#1livingU1020.63.30 × 6.25
U1@0#2kitchenU109.12.65 × 3.45
U1@0#0entryU102.92.65 × 1.10
U1@0#3bathroomU104.52.65 × 1.70
U1@1#5bedroom primaryU1120.33.25 × 6.25
U1@1#6bedroom secondaryU1111.12.70 × 4.10
U1@1#7bathroomU115.82.70 × 2.15
STAIR:U2@0circulationU2010.21.70 × 6.00
STAIR:U2@1circulationU2110.21.70 × 6.00
U2@0#0entryU204.22.70 × 1.55
U2@0#3bathroomU203.82.70 × 1.40
U2@0#2kitchenU208.22.70 × 3.05
U2@0#1livingU2027.94.65 × 6.00
U2@1#7bathroomU217.23.80 × 1.90
U2@1#6bedroom secondaryU2115.63.80 × 4.10
U2@1#5bedroom primaryU2121.33.55 × 6.00
STAIR:U3@0circulationU3013.61.85 × 7.35
STAIR:U3@1circulationU3113.61.85 × 7.35
U3@0#1livingU3028.85.15 × 5.60
U3@0#3bathroomU309.05.15 × 1.75
U3@0#0entryU304.22.05 × 2.05
U3@0#2kitchenU3010.92.05 × 5.30
U3@1#5bedroom primaryU3123.93.25 × 7.35
U3@1#6bedroom secondaryU3119.83.95 × 5.00
U3@1#7bathroomU319.33.95 × 2.35

Side by side