https://home.woot.com/offers/kh-outdoor-cat-house-10 K&H Outdoor Water Resistant Insulated Cat/Kitty Shelter House (Unheated/Olive/19"x22"x17") on sale for $24.99. Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order.