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.

B0018 · daylight-optimal · seed 1

B0018-anneal-1-1181

Simulated annealingC · meets all 17 benchmark constraints. Brief B0018

Plan drawing of a adu pair on a 17.5 by 21.8 metre lot, 2 storeys, 2 dwellings, 15 rooms. Dwelling U0 (3BR) has 8 rooms totalling 108 square metres. Dwelling U1 (1BR) has 5 rooms totalling 108 square metres. Building footprint 129 square metres; open space 254 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.80, daylight 0.72, privacy 0.85, circulation 0.55, carbon 0.82, cost 0.59.
B0018 · anneal · seed 1scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a adu pair on a 17.5 by 21.8 metre lot, 2 storeys, 2 dwellings, 15 rooms. Dwelling U0 (3BR) has 8 rooms totalling 108 square metres. Dwelling U1 (1BR) has 5 rooms totalling 108 square metres. Building footprint 129 square metres; open space 254 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.80, daylight 0.72, privacy 0.85, circulation 0.55, carbon 0.82, cost 0.59.

Objective vector

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

density
0.803
daylight
0.719
privacy
0.853
circulation
0.551
carbon
0.817
cost
0.590

Reported quantities

FAR proxy (GFA / lot)
0.68
site utilisation
0.872
gross floor area, m²
258.5
footprint, m²
129.3
carbon proxy, kgCO₂e/m² (A1–A3)
326
cost index / m² (unitless)
2.39
worst habitable room, daylight
0.621
circulation share of GFA
22%
open space, net of parking
62%
courtyard void, m²
0.0
plumbing stacks
3
footprint corners
4
preferred adjacencies met
0%

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
U03BR107.68
U11BR107.65
All 15 rooms
RoomTypeDwellingStoreyw × h m
CORE@0shared circulationshared021.62.10 × 10.30
CORE@1shared circulationshared121.62.10 × 10.30
U0@0#6bedroom secondaryU0012.02.85 × 4.20
U0@0#7bedroom secondaryU0012.63.00 × 4.20
U0@0#5bedroom primaryU0019.53.20 × 6.10
U0@0#3kitchenU0016.22.65 × 6.10
U0@0#2diningU0010.64.60 × 2.30
U0@0#4bathroomU006.51.90 × 3.40
U0@0#0entryU009.22.70 × 3.40
U0@0#1livingU0021.24.60 × 4.60
U1@1#4bedroom primaryU1130.27.45 × 4.05
U1@1#1livingU1146.67.45 × 6.25
U1@1#2kitchenU1118.63.00 × 6.20
U1@1#3bathroomU117.23.00 × 2.40
U1@1#0entryU115.13.00 × 1.70

Side by side