I don't know - all those chests look pretty useful. A good storage point on the map. I'd feel better about it if I knew they were full of more chests or something, to stop you putting them to practical use.
Based upon some of the suggestions made, I have made several "improvements" to the house.
Here is the exterior, which has several new features.
1: We have a slow-sand moat, because it wasn't taking long enough to get into the house when you're being chased by 3 creepers, half a dozen zombies and a skeleton rider.
2: There is a burning doormat, now you have to try and punch through the obsidian door while on fire.
3: A new TNT rooftop storage system, which we'll get to later.
4: The sides have been 'decorated' with ladders and signs featuring misleading, useless, and generally terrible Minecraft advice (you may need to click and view this one fullscreen)
Inside the house a minecart transportation system has been implemented, making travel within the house much more ridiculous. The track was carefully calibrated to take the least optimal route to the stairs. Sometimes it won't even make it that far.
A new basement was also added, but where's the entrance?
To access the basement, you must first destroy the staircase to the roof. This house allows only one staircase to be functional at any one time.
Down in the basement, we see it has been converted into an underground wheat farm, lit by jack o'lanterns. The farm layout is not designed in any logical or useful fashion. Cactus blocks serve as the path between crop blocks. This means that 90% of the harvest will be destroyed and you'll lose more health collecting the wheat than you'd ever hope to gain back. You can avoid the cactus by leaping from crop block to crop block, but that will ruin the tilled soil and you'll then be required to fetch a hoe from the rooftop storage.
Which requires that you must first destory the entire house, collect all the scattered items, rebuild the house, and then painstakingly re-organise your storage all over again.
This is what happens when you don't want to walk on cactus, you wuss.
Your house is a paragon of inefficiency. Well done. A clever minecraftian may be able to access the rooftop storage without destroying the house by flooding the TNT with water prior to its explosion.
The best part is, even doing that is a still a lot more annoying and time wasting than opening a normal chest is. There's no winning.
While I was taking these shots, I realised that the ladders on the side unfortunately allow you access to the roof, letting you bypass the flaming obsidian door. I may have to replace them with more terrible Minecraft advice.