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 · density-optimal · seed 0

B0010-anneal-0-1471

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 150 square metres. Dwelling U2 (2BR) has 9 rooms totalling 167 square metres. Dwelling U3 (2BR) has 9 rooms totalling 162 square metres. Building footprint 310 square metres; open space 378 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.99, daylight 0.62, privacy 0.89, circulation 0.46, carbon 0.88, cost 0.63.
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 150 square metres. Dwelling U2 (2BR) has 9 rooms totalling 167 square metres. Dwelling U3 (2BR) has 9 rooms totalling 162 square metres. Building footprint 310 square metres; open space 378 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.99, daylight 0.62, privacy 0.89, circulation 0.46, carbon 0.88, cost 0.63.

Objective vector

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

density
0.995
daylight
0.624
privacy
0.889
circulation
0.464
carbon
0.884
cost
0.633

Reported quantities

FAR proxy (GFA / lot)
0.90
site utilisation
0.997
gross floor area, m²
619.1
footprint, m²
309.6
carbon proxy, kgCO₂e/m² (A1–A3)
302
cost index / m² (unitless)
2.32
worst habitable room, daylight
0.158
circulation share of GFA
29%
open space, net of parking
55%
courtyard void, m²
0.0
plumbing stacks
9
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
U12BR149.89
U22BR167.49
U32BR162.49
All 36 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0010.21.45 × 7.05
STAIR:U0@1circulationU0110.21.45 × 7.05
U0@0#3bathroomU0029.64.20 × 7.05
U0@0#2kitchenU008.14.25 × 1.90
U0@0#1livingU0016.64.25 × 3.90
U0@0#0entryU005.34.25 × 1.25
U0@1#6bedroom secondaryU0130.74.35 × 7.05
U0@1#7bathroomU016.44.10 × 1.55
U0@1#5bedroom primaryU0122.64.10 × 5.50
STAIR:U1@0circulationU1026.33.65 × 7.20
STAIR:U1@1circulationU1126.33.65 × 7.20
U1@0#0entryU1010.92.50 × 4.35
U1@0#2kitchenU107.12.50 × 2.85
U1@0#3bathroomU1010.84.25 × 2.55
U1@0#1livingU1019.84.25 × 4.65
U1@1#7bathroomU114.12.50 × 1.65
U1@1#6bedroom secondaryU1113.92.50 × 5.55
U1@1#5bedroom primaryU1130.64.25 × 7.20
STAIR:U2@0circulationU2026.63.30 × 8.05
STAIR:U2@1circulationU2126.63.30 × 8.05
U2@0#1livingU2025.23.90 × 6.45
U2@0#0entryU206.23.90 × 1.60
U2@0#2kitchenU2013.83.20 × 4.30
U2@0#3bathroomU2012.03.20 × 3.75
U2@1#7bathroomU219.13.50 × 2.60
U2@1#5bedroom primaryU2119.13.50 × 5.45
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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