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 · best infeasible · seed 0

B0037-sketch-0-863

Random sketch + repairF′ · violates 1 of 17 benchmark constraints (1 violations). 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 44 square metres. Dwelling U1 (1BR) has 5 rooms totalling 59 square metres. Dwelling U2 (1BR) has 5 rooms totalling 62 square metres. Dwelling U3 (1BR) has 5 rooms totalling 62 square metres. Dwelling U4 (2BR) has 6 rooms totalling 103 square metres. Building footprint 237 square metres; open space 304 square metres. This design is infeasible; failing categories: open space failure. Objective scores, higher is better: density 0.84, daylight 0.55, privacy 0.81, circulation 0.49, carbon 0.81, cost 0.61.
B0037 · sketch · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

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 44 square metres. Dwelling U1 (1BR) has 5 rooms totalling 59 square metres. Dwelling U2 (1BR) has 5 rooms totalling 62 square metres. Dwelling U3 (1BR) has 5 rooms totalling 62 square metres. Dwelling U4 (2BR) has 6 rooms totalling 103 square metres. Building footprint 237 square metres; open space 304 square metres. This design is infeasible; failing categories: open space failure. Objective scores, higher is better: density 0.84, daylight 0.55, privacy 0.81, circulation 0.49, carbon 0.81, cost 0.61.

Objective vector

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

density
0.843
daylight
0.551
privacy
0.809
circulation
0.495
carbon
0.809
cost
0.609

Reported quantities

FAR proxy (GFA / lot)
0.87
site utilisation
0.898
gross floor area, m²
474.0
footprint, m²
237.0
carbon proxy, kgCO₂e/m² (A1–A3)
329
cost index / m² (unitless)
2.36
worst habitable room, daylight
0.185
circulation share of GFA
41%
open space, net of parking
57%
courtyard void, m²
24.0
plumbing stacks
4
footprint corners
8
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 failedcourtyard 24.0 < 33.7 m^2
  • C15programme complete passed
  • C16unit contiguity passed
  • C17vertical support passed

Dwellings and rooms

DwellingTypeArea m²Rooms
U0studio43.84
U11BR59.45
U21BR62.45
U31BR62.45
U42BR103.26
All 27 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared071.415.35 × 4.65
CORE@1shared circulationshared171.415.35 × 4.65
U1@0#2kitchenU1012.23.30 × 3.70
U1@0#3bathroomU106.11.65 × 3.70
U1@0#1livingU1019.14.95 × 3.85
U1@0#4bedroom primaryU1013.63.05 × 4.45
U1@0#0entryU108.51.90 × 4.45
U0@0#3bathroomU0012.43.65 × 3.40
U0@0#1livingU0015.93.65 × 4.35
U0@0#2kitchenU0010.42.45 × 4.25
U0@0#0entryU005.11.20 × 4.25
U4@1#4bedroom primaryU4114.02.75 × 5.10
U4@1#3bathroomU4113.52.65 × 5.10
U4@1#0entryU4116.33.20 × 5.10
U4@1#2kitchenU4111.63.80 × 3.05
U4@1#5bedroom secondaryU4114.63.80 × 3.85
U4@1#1livingU4133.14.80 × 6.90
U2@0#0entryU2014.72.15 × 6.85
U2@0#1livingU2020.93.05 × 6.85
U2@0#4bedroom primaryU2013.92.70 × 5.15
U2@0#2kitchenU207.02.50 × 2.80
U2@0#3bathroomU205.92.50 × 2.35
U3@1#0entryU317.42.05 × 3.60
U3@1#4bedroom primaryU3111.33.15 × 3.60
U3@1#1livingU3123.95.20 × 4.60
U3@1#2kitchenU3112.93.40 × 3.80
U3@1#3bathroomU316.81.80 × 3.80

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