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.

B0009 · best infeasible · seed 2

B0009-anneal-2-1464

Simulated annealingC · violates 3 of 17 benchmark constraints (3 violations). Brief B0009

Plan drawing of a fourplex on a 14.6 by 27.0 metre lot, 2 storeys, 4 dwellings, 24 rooms. Dwelling U0 (1BR) has 5 rooms totalling 86 square metres. Dwelling U1 (1BR) has 5 rooms totalling 63 square metres. Dwelling U2 (2BR) has 6 rooms totalling 86 square metres. Dwelling U3 (2BR) has 6 rooms totalling 64 square metres. Building footprint 163 square metres; open space 230 square metres. This design is infeasible; failing categories: bad proportion, insufficient area, no street access. Objective scores, higher is better: density 0.83, daylight 0.36, privacy 0.80, circulation 0.64, carbon 0.81, cost 0.40.
B0009 · anneal · seed 2scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a fourplex on a 14.6 by 27.0 metre lot, 2 storeys, 4 dwellings, 24 rooms. Dwelling U0 (1BR) has 5 rooms totalling 86 square metres. Dwelling U1 (1BR) has 5 rooms totalling 63 square metres. Dwelling U2 (2BR) has 6 rooms totalling 86 square metres. Dwelling U3 (2BR) has 6 rooms totalling 64 square metres. Building footprint 163 square metres; open space 230 square metres. This design is infeasible; failing categories: bad proportion, insufficient area, no street access. Objective scores, higher is better: density 0.83, daylight 0.36, privacy 0.80, circulation 0.64, carbon 0.81, cost 0.40.

Objective vector

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

density
0.825
daylight
0.364
privacy
0.799
circulation
0.636
carbon
0.806
cost
0.398

Reported quantities

FAR proxy (GFA / lot)
0.83
site utilisation
0.886
gross floor area, m²
325.6
footprint, m²
162.8
carbon proxy, kgCO₂e/m² (A1–A3)
330
cost index / m² (unitless)
2.68
worst habitable room, daylight
0.225
circulation share of GFA
17%
open space, net of parking
55%
courtyard void, m²
0.0
plumbing stacks
6
footprint corners
4
preferred adjacencies met
75%

Benchmark constraints

Benchmark rules, not building code.

  • C01geometry valid passed
  • C02no overlap passed
  • C03within buildable passed
  • C04min room area failedbedroom_primary 10.9 < 11.0 m^2
  • C05min room dimension failedbedroom_primary clear dim 2.60 < 2.70 m
  • C06max room aspect passed
  • C07min unit area passed
  • C08unit connectivity passed
  • C09street access failedentry not reachable from the street
  • 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
U01BR86.35
U11BR63.45
U22BR85.86
U32BR63.96
All 24 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared013.29.75 × 1.35
CORE@1shared circulationshared113.29.75 × 1.35
U0@0#2kitchenU0023.85.80 × 4.10
U0@0#1livingU0027.65.80 × 4.75
U0@0#4bedroom primaryU0019.03.95 × 4.80
U0@0#3bathroomU007.13.95 × 1.80
U0@0#0entryU008.93.95 × 2.25
U1@0#2kitchenU1010.35.30 × 1.95
U1@0#1livingU1024.15.30 × 4.55
U1@0#4bedroom primaryU1012.74.45 × 2.85
U1@0#3bathroomU108.04.45 × 1.80
U1@0#0entryU108.24.45 × 1.85
U3@1#1livingU3123.05.55 × 4.15
U3@1#2kitchenU3113.35.55 × 2.40
U3@1#5bedroom secondaryU319.94.20 × 2.35
U3@1#0entryU313.42.15 × 1.60
U3@1#3bathroomU313.32.05 × 1.60
U3@1#4bedroom primaryU3110.94.20 × 2.60
U2@1#2kitchenU2111.33.10 × 3.65
U2@1#5bedroom secondaryU2111.33.10 × 3.65
U2@1#3bathroomU214.73.10 × 1.50
U2@1#1livingU2127.96.65 × 4.20
U2@1#0entryU218.11.75 × 4.60
U2@1#4bedroom primaryU2122.54.90 × 4.60

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