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.

B0037 · knee point · seed 0

B0037-heuristic-0~r76

HeuristicA · meets all 17 benchmark constraints. Brief B0037

Plan drawing of a courtyard on a 19.7 by 27.7 metre lot, 2 storeys, 5 dwellings, 27 rooms. Dwelling U0 (studio) has 4 rooms totalling 38 square metres. Dwelling U1 (1BR) has 5 rooms totalling 56 square metres. Dwelling U2 (1BR) has 5 rooms totalling 101 square metres. Dwelling U3 (1BR) has 5 rooms totalling 101 square metres. Dwelling U4 (2BR) has 6 rooms totalling 95 square metres. Building footprint 219 square metres; open space 317 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.74, daylight 0.56, privacy 0.72, circulation 0.67, carbon 0.76, cost 0.51.
B0037 · heuristic · seed 0scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a courtyard on a 19.7 by 27.7 metre lot, 2 storeys, 5 dwellings, 27 rooms. Dwelling U0 (studio) has 4 rooms totalling 38 square metres. Dwelling U1 (1BR) has 5 rooms totalling 56 square metres. Dwelling U2 (1BR) has 5 rooms totalling 101 square metres. Dwelling U3 (1BR) has 5 rooms totalling 101 square metres. Dwelling U4 (2BR) has 6 rooms totalling 95 square metres. Building footprint 219 square metres; open space 317 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.74, daylight 0.56, privacy 0.72, circulation 0.67, carbon 0.76, cost 0.51.

Objective vector

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

density
0.738
daylight
0.559
privacy
0.715
circulation
0.669
carbon
0.763
cost
0.513

Reported quantities

FAR proxy (GFA / lot)
0.80
site utilisation
0.830
gross floor area, m²
437.7
footprint, m²
218.9
carbon proxy, kgCO₂e/m² (A1–A3)
345
cost index / m² (unitless)
2.50
worst habitable room, daylight
0.204
circulation share of GFA
14%
open space, net of parking
60%
courtyard void, m²
45.0
plumbing stacks
4
footprint corners
8
preferred adjacencies met
0%

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
U0studio38.14
U11BR56.45
U21BR101.45
U31BR101.45
U42BR94.56
All 27 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared022.915.80 × 1.45
CORE@1shared circulationshared122.915.80 × 1.45
U1@0#2kitchenU109.93.35 × 2.95
U1@0#3bathroomU104.91.65 × 2.95
U1@0#0entryU103.51.20 × 2.95
U1@0#1livingU1018.66.20 × 3.00
U1@0#4bedroom primaryU1019.56.20 × 3.15
U0@0#2kitchenU007.52.55 × 2.95
U0@0#3bathroomU007.22.45 × 2.95
U0@0#0entryU003.51.20 × 2.95
U0@0#1livingU0019.86.20 × 3.20
U4@1#2kitchenU4110.23.45 × 2.95
U4@1#3bathroomU414.61.55 × 2.95
U4@1#0entryU413.51.20 × 2.95
U4@1#1livingU4151.16.20 × 8.25
U4@1#4bedroom primaryU4111.32.80 × 4.05
U4@1#5bedroom secondaryU4113.83.40 × 4.05
U2@0#0entryU203.41.20 × 2.85
U2@0#3bathroomU206.42.25 × 2.85
U2@0#2kitchenU209.13.20 × 2.85
U2@0#1livingU2034.26.65 × 5.15
U2@0#4bedroom primaryU2048.26.65 × 7.25
U3@1#0entryU313.41.20 × 2.85
U3@1#3bathroomU315.01.75 × 2.85
U3@1#2kitchenU3110.53.70 × 2.85
U3@1#1livingU3134.26.65 × 5.15
U3@1#4bedroom primaryU3148.26.65 × 7.25

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