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.

B0013 · best infeasible · seed 2

B0013-sketch-2-1190

Random sketch + repairF′ · violates 1 of 17 benchmark constraints (1 violations). Brief B0013

Plan drawing of a courtyard on a 17.3 by 28.1 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 61 square metres. Dwelling U2 (1BR) has 5 rooms totalling 51 square metres. Dwelling U3 (1BR) has 5 rooms totalling 61 square metres. Dwelling U4 (2BR) has 6 rooms totalling 88 square metres. Building footprint 166 square metres; open space 332 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.68, daylight 0.53, privacy 0.71, circulation 0.63, carbon 0.68, cost 0.08.
B0013 · sketch · seed 2scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a courtyard on a 17.3 by 28.1 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 61 square metres. Dwelling U2 (1BR) has 5 rooms totalling 51 square metres. Dwelling U3 (1BR) has 5 rooms totalling 61 square metres. Dwelling U4 (2BR) has 6 rooms totalling 88 square metres. Building footprint 166 square metres; open space 332 square metres. This design is infeasible; failing categories: bad proportion. Objective scores, higher is better: density 0.68, daylight 0.53, privacy 0.71, circulation 0.63, carbon 0.68, cost 0.08.

Objective vector

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

density
0.684
daylight
0.532
privacy
0.713
circulation
0.631
carbon
0.683
cost
0.080

Reported quantities

FAR proxy (GFA / lot)
0.68
site utilisation
0.795
gross floor area, m²
332.3
footprint, m²
166.1
carbon proxy, kgCO₂e/m² (A1–A3)
374
cost index / m² (unitless)
3.18
worst habitable room, daylight
0.195
circulation share of GFA
19%
open space, net of parking
66%
courtyard void, m²
43.5
plumbing stacks
8
footprint corners
8
preferred adjacencies met
75%

Benchmark constraints

Benchmark rules, not building code.

  • C01geometry valid passed
  • C02no overlap passed
  • C03within buildable passed
  • C04min room area passed
  • C05min room dimension failedentry clear dim 1.15 < 1.20 m
  • 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
U0studio37.84
U11BR61.35
U21BR50.55
U31BR61.35
U42BR88.36
All 27 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared016.513.20 × 1.25
CORE@1shared circulationshared116.513.20 × 1.25
U2@0#3bathroomU205.03.15 × 1.60
U2@0#1livingU2020.63.15 × 6.55
U2@0#4bedroom primaryU2012.53.05 × 4.10
U2@0#0entryU204.63.05 × 1.50
U2@0#2kitchenU207.83.05 × 2.55
U0@0#1livingU0012.23.45 × 3.55
U0@0#2kitchenU005.82.75 × 2.10
U0@0#0entryU004.02.75 × 1.45
U0@0#3bathroomU0015.86.20 × 2.55
U4@1#0entryU412.61.15 × 2.25
U4@1#3bathroomU414.52.00 × 2.25
U4@1#1livingU4120.93.15 × 6.65
U4@1#2kitchenU4110.43.05 × 3.40
U4@1#4bedroom primaryU4116.83.05 × 5.50
U4@1#5bedroom secondaryU4133.26.20 × 5.35
U1@0#3bathroomU106.94.30 × 1.60
U1@0#4bedroom primaryU1016.84.30 × 3.90
U1@0#2kitchenU1011.04.30 × 2.55
U1@0#1livingU1016.34.30 × 3.80
U1@0#0entryU1010.34.30 × 2.40
U3@1#2kitchenU319.02.40 × 3.75
U3@1#0entryU317.11.90 × 3.75
U3@1#1livingU3119.14.30 × 4.45
U3@1#3bathroomU3112.34.30 × 2.85
U3@1#4bedroom primaryU3113.84.30 × 3.20

Side by side