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.

B0044 · privacy-optimal · seed 2

B0044-sketch-2-1102

Random sketch + repairF′ · meets all 17 benchmark constraints. Brief B0044

Plan drawing of a duplex on a 13.8 by 20.7 metre lot, 2 storeys, 2 dwellings, 12 rooms. Dwelling U0 (1BR) has 5 rooms totalling 66 square metres. Dwelling U1 (1BR) has 5 rooms totalling 66 square metres. Building footprint 76 square metres; open space 212 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.93, daylight 0.83, privacy 0.96, circulation 0.56, carbon 0.71, cost 0.18.
B0044 · sketch · seed 2scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a duplex on a 13.8 by 20.7 metre lot, 2 storeys, 2 dwellings, 12 rooms. Dwelling U0 (1BR) has 5 rooms totalling 66 square metres. Dwelling U1 (1BR) has 5 rooms totalling 66 square metres. Building footprint 76 square metres; open space 212 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.93, daylight 0.83, privacy 0.96, circulation 0.56, carbon 0.71, cost 0.18.

Objective vector

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

density
0.928
daylight
0.827
privacy
0.956
circulation
0.556
carbon
0.711
cost
0.180

Reported quantities

FAR proxy (GFA / lot)
0.53
site utilisation
0.953
gross floor area, m²
151.2
footprint, m²
75.6
carbon proxy, kgCO₂e/m² (A1–A3)
364
cost index / m² (unitless)
3.02
worst habitable room, daylight
0.645
circulation share of GFA
21%
open space, net of parking
74%
courtyard void, m²
0.0
plumbing stacks
3
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 passed
  • C07min unit area passed
  • 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
U01BR65.95
U11BR65.95
All 12 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared09.71.30 × 7.45
CORE@1shared circulationshared19.71.30 × 7.45
U0@0#1livingU0019.63.40 × 5.75
U0@0#0entryU005.83.40 × 1.70
U0@0#2kitchenU0016.45.45 × 3.00
U0@0#4bedroom primaryU0016.03.60 × 4.45
U0@0#3bathroomU008.21.85 × 4.45
U1@1#4bedroom primaryU1119.34.95 × 3.90
U1@1#0entryU116.44.95 × 1.30
U1@1#2kitchenU1111.14.95 × 2.25
U1@1#3bathroomU118.63.90 × 2.20
U1@1#1livingU1120.53.90 × 5.25

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