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.

B0043 · best infeasible · seed 1

B0043-anneal-1-1085

Simulated annealingC · violates 1 of 17 benchmark constraints (1 violations). Brief B0043

Plan drawing of a courtyard on a 19.9 by 25.6 metre lot, 2 storeys, 4 dwellings, 25 rooms. Dwelling U0 (1BR) has 5 rooms totalling 76 square metres. Dwelling U1 (2BR) has 6 rooms totalling 91 square metres. Dwelling U2 (2BR) has 6 rooms totalling 76 square metres. Dwelling U3 (2BR) has 6 rooms totalling 91 square metres. Building footprint 196 square metres; open space 317 square metres. This design is infeasible; failing categories: no street access. Objective scores, higher is better: density 0.75, daylight 0.60, privacy 0.79, circulation 0.55, carbon 0.75, cost 0.45.
B0043 · anneal · seed 1scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a courtyard on a 19.9 by 25.6 metre lot, 2 storeys, 4 dwellings, 25 rooms. Dwelling U0 (1BR) has 5 rooms totalling 76 square metres. Dwelling U1 (2BR) has 6 rooms totalling 91 square metres. Dwelling U2 (2BR) has 6 rooms totalling 76 square metres. Dwelling U3 (2BR) has 6 rooms totalling 91 square metres. Building footprint 196 square metres; open space 317 square metres. This design is infeasible; failing categories: no street access. Objective scores, higher is better: density 0.75, daylight 0.60, privacy 0.79, circulation 0.55, carbon 0.75, cost 0.45.

Objective vector

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

density
0.753
daylight
0.602
privacy
0.789
circulation
0.554
carbon
0.751
cost
0.450

Reported quantities

FAR proxy (GFA / lot)
0.77
site utilisation
0.840
gross floor area, m²
392.0
footprint, m²
196.0
carbon proxy, kgCO₂e/m² (A1–A3)
350
cost index / m² (unitless)
2.60
worst habitable room, daylight
0.179
circulation share of GFA
24%
open space, net of parking
62%
courtyard void, m²
39.0
plumbing stacks
5
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 passed
  • 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
U01BR76.25
U12BR90.86
U22BR76.26
U32BR90.86
All 25 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared029.016.10 × 1.80
CORE@1shared circulationshared129.016.10 × 1.80
U1@0#3bathroomU108.74.60 × 1.90
U1@0#2kitchenU1010.64.60 × 2.30
U1@0#1livingU1018.44.60 × 4.00
U1@0#4bedroom primaryU1020.74.60 × 4.50
U1@0#0entryU1018.42.55 × 7.20
U1@0#5bedroom secondaryU1014.02.55 × 5.50
U3@1#1livingU3113.53.50 × 3.85
U3@1#3bathroomU315.33.50 × 1.50
U3@1#4bedroom primaryU3125.73.50 × 7.35
U3@1#2kitchenU319.13.65 × 2.50
U3@1#0entryU318.23.65 × 2.25
U3@1#5bedroom secondaryU3129.03.65 × 7.95
U0@0#1livingU0021.72.95 × 7.35
U0@0#2kitchenU0018.83.05 × 6.15
U0@0#0entryU003.73.05 × 1.20
U0@0#4bedroom primaryU0021.44.00 × 5.35
U0@0#3bathroomU0010.72.00 × 5.35
U2@1#4bedroom primaryU2115.92.70 × 5.90
U2@1#2kitchenU215.72.70 × 2.10
U2@1#5bedroom secondaryU2112.72.70 × 4.70
U2@1#3bathroomU216.71.60 × 4.20
U2@1#0entryU217.11.70 × 4.20
U2@1#1livingU2128.13.30 × 8.50

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