Shed building in confined spaces

[winjim]

Do you have room for drop down door (similar to a castle drawbridge)?

Yes, length isn't an issue. I guess this would be the simplest option.

Do this, just narrower...

..not mine, found on the web.

^^^ This is good. Get a couple of gas struts. The things that hold your car boot open when you want it to.

I like that very much. Gonna give that one some serious thought.

The "Castle" made me chuckle .... boiling oil poured from the roof is also a brilliant theft deterrent!

.... and a moat?

It's already in a trench. Blocked off by the bins at one end and with the bedroom window above so I reckon it'd make a good murder hole.