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 · cost-optimal · seed 0

B0010-anneal-0-1423

Simulated annealingC · meets all 17 benchmark constraints. 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 140 square metres. Dwelling U1 (2BR) has 9 rooms totalling 146 square metres. Dwelling U2 (2BR) has 9 rooms totalling 163 square metres. Dwelling U3 (2BR) has 9 rooms totalling 162 square metres. Building footprint 306 square metres; open space 376 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.98, daylight 0.65, privacy 0.91, circulation 0.47, carbon 0.88, cost 0.65.
B0010 · anneal · seed 0scale bar 5 m · north arrow top right✓ FEASIBLE

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 140 square metres. Dwelling U1 (2BR) has 9 rooms totalling 146 square metres. Dwelling U2 (2BR) has 9 rooms totalling 163 square metres. Dwelling U3 (2BR) has 9 rooms totalling 162 square metres. Building footprint 306 square metres; open space 376 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.98, daylight 0.65, privacy 0.91, circulation 0.47, carbon 0.88, cost 0.65.

Objective vector

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

density
0.976
daylight
0.652
privacy
0.910
circulation
0.468
carbon
0.883
cost
0.654

Reported quantities

FAR proxy (GFA / lot)
0.89
site utilisation
0.984
gross floor area, m²
611.5
footprint, m²
305.8
carbon proxy, kgCO₂e/m² (A1–A3)
302
cost index / m² (unitless)
2.29
worst habitable room, daylight
0.250
circulation share of GFA
32%
open space, net of parking
56%
courtyard void, m²
0.0
plumbing stacks
8
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 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
U02BR139.69
U12BR146.29
U22BR163.49
U32BR162.49
All 36 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0028.64.05 × 7.05
STAIR:U0@1circulationU0128.64.05 × 7.05
U0@0#2kitchenU0019.02.70 × 7.05
U0@0#3bathroomU006.03.15 × 1.90
U0@0#1livingU0012.33.15 × 3.90
U0@0#0entryU003.93.15 × 1.25
U0@1#5bedroom primaryU0120.82.95 × 7.05
U0@1#7bathroomU014.52.90 × 1.55
U0@1#6bedroom secondaryU0115.92.90 × 5.50
STAIR:U1@0circulationU1023.03.20 × 7.20
STAIR:U1@1circulationU1123.03.20 × 7.20
U1@0#2kitchenU109.92.45 × 4.05
U1@0#0entryU107.72.45 × 3.15
U1@0#3bathroomU1010.64.50 × 2.35
U1@0#1livingU1021.84.50 × 4.85
U1@1#7bathroomU114.32.60 × 1.65
U1@1#6bedroom secondaryU1114.42.60 × 5.55
U1@1#5bedroom primaryU1131.34.35 × 7.20
STAIR:U2@0circulationU2022.92.85 × 8.05
STAIR:U2@1circulationU2122.92.85 × 8.05
U2@0#1livingU2023.43.55 × 6.60
U2@0#0entryU205.13.55 × 1.45
U2@0#2kitchenU2016.13.75 × 4.30
U2@0#3bathroomU2014.13.75 × 3.75
U2@1#5bedroom primaryU2120.23.70 × 5.45
U2@1#7bathroomU219.63.70 × 2.60
U2@1#6bedroom secondaryU2129.03.60 × 8.05
STAIR:U3@0circulationU3013.51.65 × 8.20
STAIR:U3@1circulationU3113.51.65 × 8.20
U3@0#2kitchenU3028.74.55 × 6.30
U3@0#3bathroomU308.64.55 × 1.90
U3@0#0entryU304.63.70 × 1.25
U3@0#1livingU3025.73.70 × 6.95
U3@1#5bedroom primaryU3111.63.10 × 3.75
U3@1#7bathroomU3113.83.10 × 4.45
U3@1#6bedroom secondaryU3142.25.15 × 8.20

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