I recommend Adrian's property if you are looking for a secluded house that's not too far from the Belize airport. The deck is perfect for relaxing with a Belikin after a day of adventure, watching the howler monkeys that live on the property. Speaking of monkeys, Adrian's place is only 2 miles from the Community Baboon Santuary Visitor Center where you can go for a short hike and see several monkeys in their native habitat.
The house also has a huge shower, comfortable bed, and everything you need in the kitchen. This last bit is important since it's somewhat of a drive to get to a restaurant.
I definitely recommend staying at Adrian's house if you are looking for laid-back accommodations in the jungle.