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.

B0060 · best infeasible · seed 0

B0060-heuristic-0

HeuristicA · violates 1 of 17 benchmark constraints (1 violations). Brief B0060

Plan drawing of a adu pair on a 12.6 by 19.3 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 84 square metres. Dwelling U1 (studio) has 4 rooms totalling 84 square metres. Building footprint 97 square metres; open space 149 square metres. This design is infeasible; failing categories: adjacency violation. Objective scores, higher is better: density 0.95, daylight 0.50, privacy 0.82, circulation 0.63, carbon 0.76, cost 0.56.
B0060 · heuristic · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a adu pair on a 12.6 by 19.3 metre lot, 2 storeys, 2 dwellings, 14 rooms. Dwelling U0 (3BR) has 8 rooms totalling 84 square metres. Dwelling U1 (studio) has 4 rooms totalling 84 square metres. Building footprint 97 square metres; open space 149 square metres. This design is infeasible; failing categories: adjacency violation. Objective scores, higher is better: density 0.95, daylight 0.50, privacy 0.82, circulation 0.63, carbon 0.76, cost 0.56.

Objective vector

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

density
0.946
daylight
0.504
privacy
0.822
circulation
0.632
carbon
0.761
cost
0.561

Reported quantities

FAR proxy (GFA / lot)
0.79
site utilisation
0.965
gross floor area, m²
193.0
footprint, m²
96.5
carbon proxy, kgCO₂e/m² (A1–A3)
346
cost index / m² (unitless)
2.43
worst habitable room, daylight
0.252
circulation share of GFA
16%
open space, net of parking
54%
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 passed
  • 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
U03BR84.08
U1studio84.04
All 14 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared012.51.25 × 10.00
CORE@1shared circulationshared112.51.25 × 10.00
U0@0#3kitchenU0014.62.25 × 6.50
U0@0#4bathroomU005.12.25 × 2.25
U0@0#0entryU002.82.25 × 1.25
U0@0#1livingU0018.53.05 × 6.05
U0@0#2diningU0012.03.05 × 3.95
U0@0#5bedroom primaryU0013.23.10 × 4.25
U0@0#6bedroom secondaryU009.33.10 × 3.00
U0@0#7bedroom secondaryU008.53.10 × 2.75
U1@1#2kitchenU1110.41.90 × 5.45
U1@1#3bathroomU116.41.90 × 3.35
U1@1#0entryU112.31.90 × 1.20
U1@1#1livingU1165.06.50 × 10.00

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