A) 2-Story Cat Condo, modified from Alley Cat Allies design, see http://www.mdfelinesociety.org/www.alleycat.org for building plans.

B) 2-Story Cat Condo, 2nd floor

C) 2-Story Cat Condo, Exploring the disassembled unit

D) 2-Story Cat Condo, The assembled unit

E) Inside 2-Story Cat Condo

F) 2-Story Cat Condo. Note bite-claw marks at entrance from free roaming dogs shelter has withstood.

G) Baltimore City Industrial Site, 18 Gallon, Straw-Filled Plastic Tub Cat Shelters

H) Baltimore City Industrial Site, 18 Gallon Shelters Braced for Stability

I) Baltimore City, Residential Site, Insulated Dog-proof Shelter with Hinged Roof.

J) Feline Courtyard, Pat's Concrete, White Marsh, MD

K) Feline Courtyard, Communal Shelter

L) Feline Courtyard, Individual Apartments

M) Feline Courtyard, Individual Apartments Close-up

N) Baltimore City Residence, Protective Lattice Wrapped Porch, Communal Cat Refuge

O) Feral release - side of lattice refuge

P) Metal storage shed as a shelter

Q) Pet carriers inside metal shed. Note walls insulated with polystyrene

R) Former litter pans filled with straw are used inside an urban shelter

S) 2-Story insulated wooden shelter. Note base and side openings

T) 2-Story insulated wooden shelter

U) 2-Story insulated wooden shelter with roof