(I made a mod a while ago with a similar problem. I lowered the lumber mill in Dragon Bridge to be closer to the river. But, every time I loaded the mod up and opened a save game the sawmill part of the mill would still be where it was originally (now floating in mid air). The rest of the mill had moved just like I had told it to in the mod. The problem fixed itself though when I started a whole new game from scratch. However, I'd like to avoid having to start a whole new game to fix this Breezehome door problem.)
I've tried
- Running Skyrim with no other mods except this one. Still no movement from the door.
- Restarting Skyrim, and leaving the zone then coming back.
Worth noting:
- I'm 98% sure that all the objects are still in the same cell of WhiterunPLainsDistrict03 (yes, the L in PLains is capitalised in the CK. I don't know if that's an error that needs fixing. So if you think that might be the problem, please chime in.)
- I'm fully patched (1.7.7.0.6) and using SKSE (1.5.11 rel 27)
My specs (not that I think it matters with this bug

CPU: AMD PhenomII X4, 2.9Ghz
GPU: Radeon 6950
OS: Windows XP SP3
Mobo: Gigabyte
Direct X: 9.0c
Mods (in load order):
- Skyrim
- Update
- Breezehome Mod (Mine, the mod in question)
- Beautiful Cities
- UFO - Ultimate Follower Overhaul v1.2f
- Riverwood Trees & Houses
- Dragon Bridge Redesign (my own mod, as mentioned)
- Invisible_Helmets
- Craftable Arrows
Cheers