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.

B0016 · daylight-optimal · seed 1

B0016-nsga2-1-1440

NSGA-IID · meets all 17 benchmark constraints. Brief B0016

Plan drawing of a rowhouse on a 22.6 by 27.6 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 114 square metres. Dwelling U1 (3BR) has 11 rooms totalling 215 square metres. Dwelling U2 (2BR) has 9 rooms totalling 107 square metres. Building footprint 218 square metres; open space 397 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.59, daylight 0.78, privacy 0.92, circulation 0.48, carbon 0.85, cost 0.61.
B0016 · nsga2 · seed 1scale bar 5 m · north arrow top right✓ FEASIBLE

Plan drawing of a rowhouse on a 22.6 by 27.6 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 114 square metres. Dwelling U1 (3BR) has 11 rooms totalling 215 square metres. Dwelling U2 (2BR) has 9 rooms totalling 107 square metres. Building footprint 218 square metres; open space 397 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.59, daylight 0.78, privacy 0.92, circulation 0.48, carbon 0.85, cost 0.61.

Objective vector

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

density
0.595
daylight
0.784
privacy
0.920
circulation
0.485
carbon
0.849
cost
0.614

Reported quantities

FAR proxy (GFA / lot)
0.70
site utilisation
0.737
gross floor area, m²
436.8
footprint, m²
218.4
carbon proxy, kgCO₂e/m² (A1–A3)
314
cost index / m² (unitless)
2.35
worst habitable room, daylight
0.220
circulation share of GFA
27%
open space, net of parking
65%
courtyard void, m²
0.0
plumbing stacks
5
footprint corners
4
preferred adjacencies met
75%

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
U02BR114.49
U13BR215.411
U22BR107.19
All 29 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0012.82.05 × 6.25
STAIR:U0@1circulationU0112.82.05 × 6.25
U0@0#1livingU0018.42.95 × 6.25
U0@0#3bathroomU008.14.15 × 1.95
U0@0#0entryU006.44.15 × 1.55
U0@0#2kitchenU0011.44.15 × 2.75
U0@1#5bedroom primaryU0120.93.35 × 6.25
U0@1#7bathroomU018.13.75 × 2.15
U0@1#6bedroom secondaryU0115.43.75 × 4.10
STAIR:U1@0circulationU1023.01.90 × 12.10
STAIR:U1@1circulationU1123.01.90 × 12.10
U1@0#1livingU1036.84.60 × 8.00
U1@0#2diningU1018.94.60 × 4.10
U1@0#0entryU107.32.40 × 3.05
U1@0#4bathroomU107.42.40 × 3.10
U1@0#3kitchenU1014.32.40 × 5.95
U1@1#8bedroom secondaryU1123.33.55 × 6.55
U1@1#6bedroom primaryU1119.73.55 × 5.55
U1@1#9bathroomU1128.53.45 × 8.25
U1@1#7bedroom secondaryU1113.33.45 × 3.85
STAIR:U2@0circulationU2013.72.35 × 5.85
STAIR:U2@1circulationU2113.72.35 × 5.85
U2@0#2kitchenU2015.13.55 × 4.25
U2@0#3bathroomU205.73.55 × 1.60
U2@0#0entryU205.03.25 × 1.55
U2@0#1livingU2014.03.25 × 4.30
U2@1#6bedroom secondaryU2115.52.65 × 5.85
U2@1#5bedroom primaryU2116.64.15 × 4.00
U2@1#7bathroomU217.74.15 × 1.85

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