13 Space-Saving DIY Indoor Cat Houses You Can Build Today
Let’s be real—our cats own the place. But when you live in a cozy apartment or a small home, finding room for a bulky cat tree or a giant cat condo feels impossible. You want your feline friend to have a cozy hideaway, but you also don’t want your living room to look like a feline obstacle course.
The good news? You don’t need a massive footprint to make your cat happy. I’ve rounded up 13 genius, space-saving DIY cat houses that tuck into corners, hang on walls, or double as furniture. These projects are practical, budget-friendly, and honestly, they look pretty cute in your home too. Grab your glue gun and let’s get building!
1. The Under-Table Hideaway
That console table or desk in your hallway has dead space underneath. Turn it into a private cave! Simply attach a fabric skirt with Velcro around the table’s legs, leaving one side open. Inside, toss a soft cushion or an old fleece blanket.
This is one of the easiest projects you’ll ever do—no sawing required. It’s perfect for shy cats who love to nap in the shadows.
You can even hang a small toy from the underside of the table to keep things playful. It’s invisible when you don’t need it, and your cat will love having their own secret spot.
2. Wall-Mounted Cube Condo
If floor space is tight, go vertical. Grab a few sturdy floating shelves or cube organizers and mount them directly to the wall in a staggered pattern. Add a plush bed to one cube and a hanging toy to another.
Make sure to secure them firmly into studs—cats love to jump! This setup gives your cat a high perch to survey their kingdom, which is their favorite thing ever.
You can paint the cubes to match your wall trim for a super seamless look. It’s a stylish cat highway that takes up zero floor space.
3. The Repurposed Ladder House
Don’t toss that old wooden ladder! Lean it against a wall at a slight angle. Between the rungs, wedge small wooden crates or sturdy baskets. These become instant cubbies for your cat to climb into and nap.
Use zip ties or small screws to secure the baskets so they don’t wobble. This adds a rustic, bohemian vibe to any room while giving your cat multiple levels to explore.
It’s a great way to use vertical space that’s usually ignored. Plus, the open back means it doesn’t make your room feel cluttered.
4. Suitcase Cat Bed
That vintage suitcase collecting dust in the closet? Turn it into a travel-themed cat house. Open the suitcase and place it on its side. Glue the lid open or remove it entirely. Place a soft pillow inside.
This is a brilliant upcycle project that takes up almost no space. You can stack a couple of suitcases for a fun, retro two-story home.
Drill a few small holes in the back for ventilation. The enclosed sides make cats feel secure—it’s like a little time capsule just for them.
5. TV Stand Transformation
Got an old entertainment center with cabinet doors? Remove one of the doors to create a cozy den. Add a curtain or a piece of fabric over the opening for privacy.
This is a fantastic way to repurpose bulky furniture that’s otherwise just sitting there. Keep your TV on top, and your cat can chill out below while you binge-watch your shows.
Place a soft towel inside and maybe a piece of your worn clothing so they can cuddle with your scent. It’s the ultimate lazy cat setup.
6. The Window Sill Perch
Cats love watching the world go by. If you have a wide window sill, great. If not, install a simple shelf right below the window. Measure the width to fit snugly, and secure it with brackets.
Add a small, washable cushion to the top. This gives your cat a front-row seat to all the bird and squirrel action outside.
It doesn’t protrude into the room much, so it’s perfect for narrow hallways or small bedrooms. Your cat will thank you for the entertainment.
7. Cardboard Box Igloo
We all know cats love cardboard boxes more than anything you buy at the pet store. Cut a circular entrance into a large, sturdy box. Paint it or cover it with wrapping paper to make it look intentional.
You can even tape two boxes together to make a tunnel system. This is a zero-cost project that’s fun to build and even more fun for your cat to destroy.
It’s lightweight and easy to move around, so you can place it in any corner that needs a little life. When it gets worn out, just recycle it and build a new one.
8. The Bookshelf Nook
Take a small bookshelf and remove one or two of the shelves. Create a vertical tunnel by lining the inside with carpet or sisal rope. Place a bed at the bottom.
Your cat can hop from the top, down to the middle shelf, and curl up at the bottom. It’acts like a mini cat tree but fits neatly against the wall.
Use the remaining shelves to store books or plants (just make sure they’re cat-safe). It’s a dual-purpose piece that looks like furniture, not a pet accessory.
9. Hanging Tent Under a Desk
If you have a floating desk or a desk with open legs, hang a small hammock or tent underneath. Use heavy-duty hooks to suspend a small fabric tent from the desk frame.
This is a hidden gem—literally. Nobody will see it unless they look under the desk. Your cat gets a private swinging bed that feels like a cozy cocoon.
Make sure the fabric is strong enough to hold your cat’s weight. This is a perfect solution for home offices.
10. The Staircase Cubby
If you have stairs, you have built-in storage potential. Measure the height of the riser and build a simple wooden drawer or box that fits snugly against the side of the staircase.
This creates a neat little cave that’s out of the way. You can also build a small shelf that extends out from the stair riser to create a step-up perch.
It’s a bit more advanced if you’re building from scratch, but you can also just use a pre-made storage cube. It uses space that’s usually completely ignored.
11. The Closet Door Condo
Over-the-door shoe organizers aren’t just for shoes. Use a fabric hanging organizer with deep pockets. Flip it upside down and hang it on the back of a closet door.
Cut a small hole in the bottom of a few pockets to create tunnels, or just line them with soft fabric. Your cat can climb up and hide inside the pockets.
This takes up zero floor space and turns a boring door into a vertical playground. Just make sure the hooks are sturdy enough to hold the weight.
12. The Plant Pot Hideout
If you have a large, decorative basket or planter pot that’s empty, flip it on its side. Place a soft cushion inside the opening. This makes an adorable, natural-looking hideout.
You can add a fake plant on top of the pot to make it look like a planter, or just leave the basket as a decorative piece. It adds a warm, earthy touch to your decor.
It’s super portable—you can move it from the living room to the bedroom easily. Your cat will feel like they’re in a little cave.
13. The DIY Pallet Crate
Pallets are free and versatile. Break one down and build a simple square crate. Leave one side open and add a roof panel. Sand it down so there are no splinters.
Paint it a fun color or leave it raw for a rustic farmhouse look. Place a cozy blanket inside. You can even add a few legs to elevate it off the cold floor.
This is a sturdier project, but it’s worth the effort. It’s a sturdy house that can double as a side table if you add a wooden top.
Conclusion: Build Smart, Not Big
You don’t need a mansion to make your cat feel like a king. These DIY projects prove that a little creativity can turn unused corners, walls, and old furniture into the perfect cat sanctuary. Your cat will love having a space that’s all theirs, and you’ll love that your home still looks stylish.
Pick one project this weekend, gather your materials, and get started. The purrs of approval will be worth every minute of work. Happy building!
Frequently Asked Questions
What is the cheapest DIY cat house idea?
Hands down, the cardboard box igloo is the cheapest. You likely already have a box at home. Just cut a hole and add a soft blanket. It costs almost nothing.
How do I get my cat to use their new house?
Place a treat or a bit of catnip inside. You can also put a t-shirt you’ve worn inside so it smells like you. Be patient—some cats take a few days to warm up to new things.
Are wall-mounted cat houses safe?
Yes, as long as you install them into wall studs or use heavy-duty anchors. Always follow the weight limits and check the stability before letting your cat jump on them.
What materials are best for a cat house?
Untreated wood, sturdy cardboard, and thick fabric are all safe choices. Avoid paints with harsh chemicals. Use pet-safe, water-based paints or leave wood raw.
Can I build a cat house if I’m not handy?
Absolutely! Start with the easier projects like the under-table hideaway or the suitcase cat bed. They require no tools and take less than 15 minutes to put together.
