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.

B0034 · daylight-optimal · seed 2

B0034-anneal-2-1014

Simulated annealingC · meets all 17 benchmark constraints. Brief B0034

Plan drawing of a rowhouse on a 25.0 by 30.3 metre lot, 2 storeys, 4 dwellings, 36 rooms. Dwelling U0 (2BR) has 9 rooms totalling 80 square metres. Dwelling U1 (2BR) has 9 rooms totalling 127 square metres. Dwelling U2 (2BR) has 9 rooms totalling 105 square metres. Dwelling U3 (2BR) has 9 rooms totalling 144 square metres. Building footprint 229 square metres; open space 528 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.42, daylight 0.78, privacy 0.89, circulation 0.54, carbon 0.83, cost 0.45.
B0034 · anneal · seed 2scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a rowhouse on a 25.0 by 30.3 metre lot, 2 storeys, 4 dwellings, 36 rooms. Dwelling U0 (2BR) has 9 rooms totalling 80 square metres. Dwelling U1 (2BR) has 9 rooms totalling 127 square metres. Dwelling U2 (2BR) has 9 rooms totalling 105 square metres. Dwelling U3 (2BR) has 9 rooms totalling 144 square metres. Building footprint 229 square metres; open space 528 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.42, daylight 0.78, privacy 0.89, circulation 0.54, carbon 0.83, cost 0.45.

Objective vector

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

density
0.420
daylight
0.779
privacy
0.891
circulation
0.543
carbon
0.832
cost
0.447

Reported quantities

FAR proxy (GFA / lot)
0.60
site utilisation
0.623
gross floor area, m²
457.2
footprint, m²
228.6
carbon proxy, kgCO₂e/m² (A1–A3)
320
cost index / m² (unitless)
2.61
worst habitable room, daylight
0.433
circulation share of GFA
22%
open space, net of parking
70%
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 passed
  • C06max room aspect passed
  • 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
U02BR80.39
U12BR127.39
U22BR105.19
U32BR144.49
All 36 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU007.21.30 × 5.50
STAIR:U0@1circulationU017.21.30 × 5.50
U0@0#2kitchenU007.42.80 × 2.65
U0@0#3bathroomU004.31.50 × 2.85
U0@0#0entryU003.71.30 × 2.85
U0@0#1livingU0017.63.20 × 5.50
U0@1#7bathroomU014.12.75 × 1.50
U0@1#6bedroom secondaryU0111.02.75 × 4.00
U0@1#5bedroom primaryU0117.93.25 × 5.50
STAIR:U1@0circulationU108.91.50 × 5.95
STAIR:U1@1circulationU118.91.50 × 5.95
U1@0#0entryU1011.31.90 × 5.95
U1@0#1livingU1026.84.50 × 5.95
U1@0#2kitchenU1010.22.80 × 3.65
U1@0#3bathroomU106.42.80 × 2.30
U1@1#5bedroom primaryU1120.75.30 × 3.90
U1@1#7bathroomU1110.95.30 × 2.05
U1@1#6bedroom secondaryU1123.23.90 × 5.95
STAIR:U2@0circulationU2010.27.30 × 1.40
STAIR:U2@1circulationU2110.27.30 × 1.40
U2@0#0entryU203.12.30 × 1.35
U2@0#2kitchenU206.62.30 × 2.85
U2@0#3bathroomU203.72.30 × 1.60
U2@0#1livingU2029.05.00 × 5.80
U2@1#5bedroom primaryU2112.54.45 × 2.80
U2@1#7bathroomU2113.34.45 × 3.00
U2@1#6bedroom secondaryU2116.52.85 × 5.80
STAIR:U3@0circulationU3011.51.70 × 6.75
STAIR:U3@1circulationU3111.51.70 × 6.75
U3@0#1livingU3037.55.55 × 6.75
U3@0#3bathroomU306.23.45 × 1.80
U3@0#0entryU305.73.45 × 1.65
U3@0#2kitchenU3011.43.45 × 3.30
U3@1#6bedroom secondaryU3123.63.50 × 6.75
U3@1#7bathroomU3112.95.50 × 2.35
U3@1#5bedroom primaryU3124.25.50 × 4.40

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