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.

B0016 · best infeasible · seed 1

B0016-anneal-1-699

Simulated annealingC · violates 1 of 17 benchmark constraints (1 violations). Brief B0016

Plan drawing of a rowhouse on a 22.6 by 27.6 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 113 square metres. Dwelling U1 (3BR) has 11 rooms totalling 214 square metres. Dwelling U2 (2BR) has 9 rooms totalling 128 square metres. Building footprint 227 square metres; open space 400 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.64, daylight 0.70, privacy 0.92, circulation 0.55, carbon 0.85, cost 0.56.
B0016 · anneal · seed 1scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a rowhouse on a 22.6 by 27.6 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 113 square metres. Dwelling U1 (3BR) has 11 rooms totalling 214 square metres. Dwelling U2 (2BR) has 9 rooms totalling 128 square metres. Building footprint 227 square metres; open space 400 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.64, daylight 0.70, privacy 0.92, circulation 0.55, carbon 0.85, cost 0.56.

Objective vector

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

density
0.641
daylight
0.699
privacy
0.917
circulation
0.546
carbon
0.853
cost
0.560

Reported quantities

FAR proxy (GFA / lot)
0.73
site utilisation
0.767
gross floor area, m²
454.7
footprint, m²
227.4
carbon proxy, kgCO₂e/m² (A1–A3)
313
cost index / m² (unitless)
2.43
worst habitable room, daylight
0.158
circulation share of GFA
20%
open space, net of parking
64%
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 passed
  • C06max room aspect failedbedroom_secondary aspect 2.60 > 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
U02BR112.89
U13BR213.811
U22BR128.19
All 29 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU009.61.75 × 5.50
STAIR:U0@1circulationU019.61.75 × 5.50
U0@0#2kitchenU0015.72.85 × 5.50
U0@0#1livingU0018.43.35 × 5.50
U0@0#3bathroomU009.42.30 × 4.10
U0@0#0entryU003.22.30 × 1.40
U0@1#5bedroom primaryU0119.03.45 × 5.50
U0@1#7bathroomU018.65.05 × 1.70
U0@1#6bedroom secondaryU0119.25.05 × 3.80
STAIR:U1@0circulationU1018.21.55 × 11.75
STAIR:U1@1circulationU1118.21.55 × 11.75
U1@0#3kitchenU1016.62.35 × 7.05
U1@0#0entryU1011.02.35 × 4.70
U1@0#4bathroomU105.91.95 × 3.05
U1@0#2diningU109.93.25 × 3.05
U1@0#1livingU1045.25.20 × 8.70
U1@1#7bedroom secondaryU1121.97.55 × 2.90
U1@1#8bedroom secondaryU1111.62.20 × 5.25
U1@1#9bathroomU1128.15.35 × 5.25
U1@1#6bedroom primaryU1127.27.55 × 3.60
STAIR:U2@0circulationU207.21.15 × 6.25
STAIR:U2@1circulationU217.21.15 × 6.25
U2@0#1livingU2034.75.55 × 6.25
U2@0#3bathroomU205.93.55 × 1.65
U2@0#0entryU206.93.55 × 1.95
U2@0#2kitchenU209.43.55 × 2.65
U2@1#5bedroom primaryU2130.34.85 × 6.25
U2@1#6bedroom secondaryU2115.74.25 × 3.70
U2@1#7bathroomU2110.84.25 × 2.55

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