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 · carbon-optimal · seed 0

B0010-anneal-0-1487

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 0.63, 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 0.63, 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
0.627
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
30%
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#3bathroomU0031.44.45 × 7.05
U0@0#2kitchenU007.64.00 × 1.90
U0@0#1livingU0015.64.00 × 3.90
U0@0#0entryU005.04.00 × 1.25
U0@1#6bedroom secondaryU0133.54.75 × 7.05
U0@1#7bathroomU015.73.70 × 1.55
U0@1#5bedroom primaryU0120.43.70 × 5.50
STAIR:U1@0circulationU1023.43.25 × 7.20
STAIR:U1@1circulationU1123.43.25 × 7.20
U1@0#0entryU1011.52.65 × 4.35
U1@0#2kitchenU107.62.65 × 2.85
U1@0#3bathroomU1011.54.50 × 2.55
U1@0#1livingU1020.94.50 × 4.65
U1@1#7bathroomU114.62.65 × 1.75
U1@1#6bedroom secondaryU1114.42.65 × 5.45
U1@1#5bedroom primaryU1132.44.50 × 7.20
STAIR:U2@0circulationU2026.63.30 × 8.05
STAIR:U2@1circulationU2126.63.30 × 8.05
U2@0#1livingU2028.14.35 × 6.45
U2@0#0entryU207.04.35 × 1.60
U2@0#2kitchenU2011.82.75 × 4.30
U2@0#3bathroomU2010.32.75 × 3.75
U2@1#7bathroomU2110.33.50 × 2.95
U2@1#5bedroom primaryU2117.93.50 × 5.10
U2@1#6bedroom secondaryU2129.03.60 × 8.05
STAIR:U3@0circulationU3017.22.10 × 8.20
STAIR:U3@1circulationU3117.22.10 × 8.20
U3@0#2kitchenU3027.14.30 × 6.30
U3@0#3bathroomU308.24.30 × 1.90
U3@0#0entryU304.43.50 × 1.25
U3@0#1livingU3024.33.50 × 6.95
U3@1#5bedroom primaryU3111.12.95 × 3.75
U3@1#7bathroomU3113.12.95 × 4.45
U3@1#6bedroom secondaryU3139.84.85 × 8.20

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