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.

B0058 · best infeasible · seed 0

B0058-random-0-271

Random searchB · violates 3 of 17 benchmark constraints (3 violations). Brief B0058

Plan drawing of a rowhouse on a 29.5 by 30.6 metre lot, 2 storeys, 4 dwellings, 36 rooms. Dwelling U0 (2BR) has 9 rooms totalling 162 square metres. Dwelling U1 (2BR) has 9 rooms totalling 133 square metres. Dwelling U2 (2BR) has 9 rooms totalling 172 square metres. Dwelling U3 (2BR) has 9 rooms totalling 180 square metres. Building footprint 324 square metres; open space 577 square metres. This design is infeasible; failing categories: bad proportion, daylight failure, no street access. Objective scores, higher is better: density 0.49, daylight 0.67, privacy 0.88, circulation 0.54, carbon 0.89, cost 0.61.
B0058 · random · seed 0scale bar 5 m · north arrow top right✕ INFEASIBLE

Plan drawing of a rowhouse on a 29.5 by 30.6 metre lot, 2 storeys, 4 dwellings, 36 rooms. Dwelling U0 (2BR) has 9 rooms totalling 162 square metres. Dwelling U1 (2BR) has 9 rooms totalling 133 square metres. Dwelling U2 (2BR) has 9 rooms totalling 172 square metres. Dwelling U3 (2BR) has 9 rooms totalling 180 square metres. Building footprint 324 square metres; open space 577 square metres. This design is infeasible; failing categories: bad proportion, daylight failure, no street access. Objective scores, higher is better: density 0.49, daylight 0.67, privacy 0.88, circulation 0.54, carbon 0.89, cost 0.61.

Objective vector

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

density
0.488
daylight
0.667
privacy
0.884
circulation
0.544
carbon
0.891
cost
0.610

Reported quantities

FAR proxy (GFA / lot)
0.72
site utilisation
0.667
gross floor area, m²
647.5
footprint, m²
323.7
carbon proxy, kgCO₂e/m² (A1–A3)
299
cost index / m² (unitless)
2.35
worst habitable room, daylight
0.000
circulation share of GFA
22%
open space, net of parking
64%
courtyard void, m²
0.0
plumbing stacks
11
footprint corners
4
preferred adjacencies met
63%

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 failedbedroom_secondary aspect 2.65 > 2.60
  • C07min unit area passed
  • C08unit connectivity passed
  • C09street access failedentry not reachable from the street
  • C10habitable daylight failedbedroom_secondary has 0.00 m of window-capable wall
  • 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
U02BR161.59
U12BR133.29
U22BR172.49
U32BR180.49
All 36 rooms
RoomTypeDwellingStoreyw × h m
STAIR:U0@0circulationU0014.81.80 × 8.20
STAIR:U0@1circulationU0114.81.80 × 8.20
U0@0#3bathroomU007.83.80 × 2.05
U0@0#0entryU007.03.80 × 1.85
U0@0#2kitchenU0016.33.80 × 4.30
U0@0#1livingU0034.94.25 × 8.20
U0@1#6bedroom secondaryU0117.73.40 × 5.20
U0@1#7bathroomU0110.23.40 × 3.00
U0@1#5bedroom primaryU0138.14.65 × 8.20
STAIR:U1@0circulationU1010.11.40 × 7.20
STAIR:U1@1circulationU1110.11.40 × 7.20
U1@0#1livingU1034.94.85 × 7.20
U1@0#2kitchenU1011.33.00 × 3.75
U1@0#0entryU104.53.00 × 1.50
U1@0#3bathroomU105.83.00 × 1.95
U1@1#6bedroom secondaryU1119.14.10 × 4.65
U1@1#7bathroomU1110.54.10 × 2.55
U1@1#5bedroom primaryU1127.03.75 × 7.20
STAIR:U2@0circulationU2018.42.10 × 8.75
STAIR:U2@1circulationU2118.42.10 × 8.75
U2@0#0entryU206.32.85 × 2.20
U2@0#2kitchenU2013.32.85 × 4.65
U2@0#3bathroomU205.42.85 × 1.90
U2@0#1livingU2042.94.90 × 8.75
U2@1#7bathroomU219.84.45 × 2.20
U2@1#5bedroom primaryU2129.14.45 × 6.55
U2@1#6bedroom secondaryU2128.93.30 × 8.75
STAIR:U3@0circulationU3016.61.70 × 9.75
STAIR:U3@1circulationU3116.61.70 × 9.75
U3@0#1livingU3039.54.05 × 9.75
U3@0#0entryU307.53.50 × 2.15
U3@0#3bathroomU308.93.50 × 2.55
U3@0#2kitchenU3017.73.50 × 5.05
U3@1#7bathroomU3110.73.35 × 3.20
U3@1#6bedroom secondaryU3121.93.35 × 6.55
U3@1#5bedroom primaryU3141.04.20 × 9.75

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