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.

B0029 · best infeasible · seed 0

B0029-anneal-0-1101

Simulated annealingC · violates 2 of 17 benchmark constraints (2 violations). Brief B0029

Plan drawing of a triplex on a 14.1 by 21.5 metre lot, 2 storeys, 3 dwellings, 17 rooms. Dwelling U0 (studio) has 4 rooms totalling 33 square metres. Dwelling U1 (1BR) has 5 rooms totalling 60 square metres. Dwelling U2 (2BR) has 6 rooms totalling 93 square metres. Building footprint 105 square metres; open space 193 square metres. This design is infeasible; failing categories: bad proportion, insufficient area. Objective scores, higher is better: density 0.73, daylight 0.50, privacy 0.81, circulation 0.60, carbon 0.75, cost 0.10.
B0029 · anneal · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a triplex on a 14.1 by 21.5 metre lot, 2 storeys, 3 dwellings, 17 rooms. Dwelling U0 (studio) has 4 rooms totalling 33 square metres. Dwelling U1 (1BR) has 5 rooms totalling 60 square metres. Dwelling U2 (2BR) has 6 rooms totalling 93 square metres. Building footprint 105 square metres; open space 193 square metres. This design is infeasible; failing categories: bad proportion, insufficient area. Objective scores, higher is better: density 0.73, daylight 0.50, privacy 0.81, circulation 0.60, carbon 0.75, cost 0.10.

Objective vector

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

density
0.730
daylight
0.497
privacy
0.808
circulation
0.603
carbon
0.747
cost
0.095

Reported quantities

FAR proxy (GFA / lot)
0.69
site utilisation
0.825
gross floor area, m²
210.6
footprint, m²
105.3
carbon proxy, kgCO₂e/m² (A1–A3)
351
cost index / m² (unitless)
3.15
worst habitable room, daylight
0.153
circulation share of GFA
20%
open space, net of parking
60%
courtyard void, m²
0.0
plumbing stacks
6
footprint corners
4
preferred adjacencies met
100%

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 failedliving aspect 2.68 > 2.60
  • C07min unit area failedstudio 33.0 < 33.0 m^2
  • 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
U0studio33.04
U11BR59.75
U22BR92.76
All 17 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared012.69.00 × 1.40
CORE@1shared circulationshared112.69.00 × 1.40
U1@0#1livingU1025.73.10 × 8.30
U1@0#0entryU106.23.10 × 2.00
U1@0#4bedroom primaryU1014.72.70 × 5.45
U1@0#3bathroomU104.92.70 × 1.80
U1@0#2kitchenU108.22.70 × 3.05
U0@0#3bathroomU008.21.90 × 4.30
U0@0#0entryU005.61.30 × 4.30
U0@0#1livingU0012.83.20 × 4.00
U0@0#2kitchenU006.43.20 × 2.00
U2@1#4bedroom primaryU2119.14.60 × 4.15
U2@1#3bathroomU219.04.60 × 1.95
U2@1#5bedroom secondaryU2113.23.15 × 4.20
U2@1#0entryU216.11.45 × 4.20
U2@1#2kitchenU2124.24.40 × 5.50
U2@1#1livingU2121.14.40 × 4.80

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