http://www.fpsbanana.com/maps/20763
I found this yesterday while checking out the newest releases over at FPSBanana. The house is completely destructible, `cept for certain props w/in. The sad thing is though I don`t know if it`s the lack of power my comp has to give to the Havok engine, or the values need to be tweaked, or my lack of knowledge regarding real life construction, but after destroying all the 'main' supports (which I thought were the large corner pieces, the house still doesn`t fall down. Still fun none the less.
It was build w/ the intention of using it in HL2 or HL2DM, but I recommend SMOD Remastered: Redux. You get a hell of a lot more toys to destroy the place w/, but some of the included methods (fire and earthquake, off the top of my head) don`t work properly, but the banana bombs more than make up for that.