Outdoor enclosures

Wasn't sure where to post this, but does anyone know of how to build or where to purchase an outdoor enclosure that is virtually escape proof? My first crew of cats used to get to roam free, as we don't live on a main road and it wasn't very dangerous at the time. Now the neighbors have mean dogs (which they keep in an invisible fence, but still they can and have gotten loose). There are also coyotes around. Marshmallow was an outdoor cat before we adopted him, and he still longs to be out. If he had the upper body strength to turn the doorknob, he would be out, because he tries. I just can't take any chances; even though we probably can't build one now, it would be great to try to fix something up for this summer. Your thoughts and ideas would certainly be appreciated.

That is amazing!

I love the one with the water feature. Someone has an artistic eye and a great imagination.

I've only started to look, but I bet there are places here in the US. (The economy is so bad here that surely some local carpenter would be happy to build a cat enclosure, even if it's not something they've done before.)

I hope we are able to do something so that Marshmallow and Speck can go outside this summer, even if we just screen in our back porch. Speck is kind of afraid of the outside, but interested. He was a kitten when we adopted him, so I don't know if he's lived outside or not, and he probably doesn't remember.

Poor Marshmallow is pining away...he lived outside for maybe three months at DH's office, but DH was feeding him and fixed him a shelter. He thought he was the king of cats, and not knowing how tiny he was, managed to bully everyone with attitude alone. I really feel sorry for him because he thinks we're holding him prisoner...which we are.

Daisy shows no real desire to go out. Having lived the roughest life (she was a stray at the business next door to DH's before being sent to the pound), Daisy has had to live by her wits...she even found a way to sneak into a secure building with an alarm system. She knows where she's got it good and is happy in the warm, comfortable house.

Thank you all for your responses! You've been very helpful and I can't wait to show DH your suggestions!

That looks very nice...and escape proof is a great thing. I mentioned my aunt's outbuilding with the cat enclosure after I took your survey. Yours is a lot like hers was, except hers had some type of green fence and was very difficult to see into - she wanted people to think there was some sort of big mean dog in there. She even posted "Beware of Dog" signs.

Wonderful news! I showed DH everyone's pictures and he has decided to get our back porch screened in before summer. I don't think it will be very difficult (and hopefully not too expensive), since there is already a roof over the porch. It will involve closing in my kitchen window , but sacrafices must be made for the kitties.