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.

B0024 · best infeasible · seed 0

B0024-heuristic-0

HeuristicA · violates 2 of 17 benchmark constraints (2 violations). Brief B0024

Plan drawing of a adu pair on a 11.7 by 21.2 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 75 square metres. Dwelling U1 (studio) has 4 rooms totalling 75 square metres. Building footprint 88 square metres; open space 152 square metres. This design is infeasible; failing categories: adjacency violation, insufficient area. Objective scores, higher is better: density 1.00, daylight 0.67, privacy 0.80, circulation 0.62, carbon 0.73, cost 0.49.
B0024 · heuristic · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a adu pair on a 11.7 by 21.2 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 75 square metres. Dwelling U1 (studio) has 4 rooms totalling 75 square metres. Building footprint 88 square metres; open space 152 square metres. This design is infeasible; failing categories: adjacency violation, insufficient area. Objective scores, higher is better: density 1.00, daylight 0.67, privacy 0.80, circulation 0.62, carbon 0.73, cost 0.49.

Objective vector

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

density
1.000
daylight
0.675
privacy
0.800
circulation
0.624
carbon
0.730
cost
0.487

Reported quantities

FAR proxy (GFA / lot)
0.71
site utilisation
1.000
gross floor area, m²
175.4
footprint, m²
87.7
carbon proxy, kgCO₂e/m² (A1–A3)
357
cost index / m² (unitless)
2.55
worst habitable room, daylight
0.272
circulation share of GFA
17%
open space, net of parking
58%
courtyard void, m²
0.0
plumbing stacks
1
footprint corners
4
preferred adjacencies met
33%

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 failed3BR 75.5 < 84.0 m^2
  • C08unit connectivity passed
  • C09street access passed
  • C10habitable daylight passed
  • C11required adjacency failedrequired adjacency entry-living absent
  • C12forbidden door passed
  • C13open space passed
  • C14courtyard provision passed
  • C15programme complete passed
  • C16unit contiguity passed
  • C17vertical support passed

Dwellings and rooms

DwellingTypeArea m²Rooms
U03BR75.58
U1studio75.54
All 14 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared012.21.20 × 10.20
CORE@1shared circulationshared112.21.20 × 10.20
U0@0#3kitchenU009.41.85 × 5.10
U0@0#4bathroomU007.21.85 × 3.90
U0@0#0entryU002.21.85 × 1.20
U0@0#1livingU0016.42.80 × 5.85
U0@0#2diningU0012.22.80 × 4.35
U0@0#5bedroom primaryU0012.02.75 × 4.35
U0@0#6bedroom secondaryU008.42.75 × 3.05
U0@0#7bedroom secondaryU007.72.75 × 2.80
U1@1#2kitchenU1121.33.00 × 7.10
U1@1#3bathroomU115.73.00 × 1.90
U1@1#0entryU113.63.00 × 1.20
U1@1#1livingU1144.94.40 × 10.20

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