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.

B0046 · best infeasible · seed 1

B0046-anneal-1-1090

Simulated annealingC · violates 2 of 17 benchmark constraints (3 violations). Brief B0046

Plan drawing of a rowhouse on a 19.9 by 22.1 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 70 square metres. Dwelling U1 (3BR) has 11 rooms totalling 119 square metres. Dwelling U2 (2BR) has 9 rooms totalling 95 square metres. Building footprint 142 square metres; open space 300 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.62, daylight 0.64, privacy 0.90, circulation 0.56, carbon 0.76, cost 0.17.
B0046 · anneal · seed 1scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a rowhouse on a 19.9 by 22.1 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 70 square metres. Dwelling U1 (3BR) has 11 rooms totalling 119 square metres. Dwelling U2 (2BR) has 9 rooms totalling 95 square metres. Building footprint 142 square metres; open space 300 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.62, daylight 0.64, privacy 0.90, circulation 0.56, carbon 0.76, cost 0.17.

Objective vector

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

density
0.622
daylight
0.638
privacy
0.895
circulation
0.564
carbon
0.762
cost
0.167

Reported quantities

FAR proxy (GFA / lot)
0.64
site utilisation
0.754
gross floor area, m²
283.6
footprint, m²
141.8
carbon proxy, kgCO₂e/m² (A1–A3)
346
cost index / m² (unitless)
3.04
worst habitable room, daylight
0.198
circulation share of GFA
18%
open space, net of parking
68%
courtyard void, m²
0.0
plumbing stacks
7
footprint corners
4
preferred adjacencies met
50%

Benchmark constraints

Benchmark rules, not building code.

  • C01geometry valid passed
  • C02no overlap passed
  • C03within buildable passed
  • C04min room area passed
  • C05min room dimension failedbathroom clear dim 1.35 < 1.50 mbathroom clear dim 1.45 < 1.50 m
  • C06max room aspect failedbedroom_secondary aspect 2.67 > 2.60
  • C07min unit area passed
  • C08unit connectivity passed
  • C09street access passed
  • C10habitable daylight passed
  • 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
U02BR70.29
U13BR119.011
U22BR94.59
All 29 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU004.11.05 × 3.90
STAIR:U0@1circulationU014.11.05 × 3.90
U0@0#3bathroomU003.71.90 × 1.95
U0@0#0entryU002.51.30 × 1.95
U0@0#2kitchenU006.23.20 × 1.95
U0@0#1livingU0018.54.75 × 3.90
U0@1#6bedroom secondaryU0113.13.35 × 3.90
U0@1#5bedroom primaryU0111.93.05 × 3.90
U0@1#7bathroomU016.01.55 × 3.90
STAIR:U1@0circulationU1010.51.15 × 9.15
STAIR:U1@1circulationU1110.51.15 × 9.15
U1@0#1livingU1023.83.05 × 7.80
U1@0#4bathroomU104.13.05 × 1.35
U1@0#0entryU103.32.30 × 1.45
U1@0#3kitchenU107.52.30 × 3.25
U1@0#2diningU1010.22.30 × 4.45
U1@1#7bedroom secondaryU117.72.80 × 2.75
U1@1#6bedroom primaryU1117.92.80 × 6.40
U1@1#9bathroomU116.02.55 × 2.35
U1@1#8bedroom secondaryU1117.32.55 × 6.80
STAIR:U2@0circulationU206.61.25 × 5.25
STAIR:U2@1circulationU216.61.25 × 5.25
U2@0#2kitchenU209.71.85 × 5.25
U2@0#1livingU2023.44.45 × 5.25
U2@0#3bathroomU203.71.45 × 2.55
U2@0#0entryU203.91.45 × 2.70
U2@1#7bathroomU2111.02.10 × 5.25
U2@1#5bedroom primaryU2116.03.05 × 5.25
U2@1#6bedroom secondaryU2113.72.60 × 5.25

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