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.

B0022 · best infeasible · seed 0

B0022-heuristic-0

HeuristicA · violates 5 of 17 benchmark constraints (19 violations). Brief B0022

Plan drawing of a rowhouse on a 18.3 by 25.5 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 102 square metres. Dwelling U1 (3BR) has 11 rooms totalling 166 square metres. Dwelling U2 (2BR) has 9 rooms totalling 98 square metres. Building footprint 183 square metres; open space 284 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, daylight failure, insufficient area. Objective scores, higher is better: density 0.69, daylight 0.44, privacy 0.86, circulation 0.45, carbon 0.82, cost 0.37.
B0022 · heuristic · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a rowhouse on a 18.3 by 25.5 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 102 square metres. Dwelling U1 (3BR) has 11 rooms totalling 166 square metres. Dwelling U2 (2BR) has 9 rooms totalling 98 square metres. Building footprint 183 square metres; open space 284 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, daylight failure, insufficient area. Objective scores, higher is better: density 0.69, daylight 0.44, privacy 0.86, circulation 0.45, carbon 0.82, cost 0.37.

Objective vector

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

density
0.694
daylight
0.440
privacy
0.864
circulation
0.449
carbon
0.822
cost
0.373

Reported quantities

FAR proxy (GFA / lot)
0.78
site utilisation
0.801
gross floor area, m²
365.4
footprint, m²
182.7
carbon proxy, kgCO₂e/m² (A1–A3)
324
cost index / m² (unitless)
2.72
worst habitable room, daylight
0.000
circulation share of GFA
44%
open space, net of parking
61%
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 failedliving 10.9 < 11.0 m^2bedroom_primary 10.9 < 11.0 m^2
  • C05min room dimension failedbathroom clear dim 1.25 < 1.50 mentry clear dim 1.15 < 1.20 mbedroom_primary clear dim 2.40 < 2.70 m…and 10 more
  • C06max room aspect failedentry aspect 4.04 > 4.00bedroom_secondary aspect 2.74 > 2.60
  • C07min unit area passed
  • C08unit connectivity passed
  • C09street access passed
  • C10habitable daylight failedliving has 0.00 m of window-capable wall
  • 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
U02BR101.69
U13BR165.811
U22BR98.09
All 29 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0022.54.20 × 5.35
STAIR:U0@1circulationU0122.54.20 × 5.35
U0@0#2kitchenU005.61.80 × 3.10
U0@0#3bathroomU003.91.25 × 3.10
U0@0#0entryU003.61.15 × 3.10
U0@0#1livingU0015.34.20 × 3.65
U0@1#5bedroom primaryU0111.22.40 × 4.65
U0@1#6bedroom secondaryU018.41.80 × 4.65
U0@1#7bathroomU018.84.20 × 2.10
STAIR:U1@0circulationU1033.96.85 × 4.95
STAIR:U1@1circulationU1133.96.85 × 4.95
U1@0#0entryU105.31.15 × 4.65
U1@0#1livingU1010.92.35 × 4.65
U1@0#2diningU108.41.80 × 4.65
U1@0#3kitchenU107.21.55 × 4.65
U1@0#4bathroomU1017.16.85 × 2.50
U1@1#6bedroom primaryU1111.22.70 × 4.15
U1@1#7bedroom secondaryU118.11.95 × 4.15
U1@1#8bedroom secondaryU119.12.20 × 4.15
U1@1#9bathroomU1120.66.85 × 3.00
STAIR:U2@0circulationU2017.64.05 × 4.35
STAIR:U2@1circulationU2117.64.05 × 4.35
U2@0#0entryU203.51.10 × 3.20
U2@0#3bathroomU203.71.15 × 3.20
U2@0#2kitchenU205.81.80 × 3.20
U2@0#1livingU2018.44.05 × 4.55
U2@1#5bedroom primaryU2110.92.35 × 4.65
U2@1#6bedroom secondaryU217.91.70 × 4.65
U2@1#7bathroomU2112.64.05 × 3.10

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