I'm ready to throw in the towel on this one, thought I'd just see if anyone knows anything I don't yet.

So I have the old 'Invisible Heljarchen Hall' problem, which on closer examination appears to be more of a glitch in the Drafting table, which prevents the house-building quest from moving on, and the house from appearing in the world when built. I know a lot of people have had issues with this, on any or all of the 3 houses that were added by the Hearthfire DLC; for me Heljarchen is the only one that has caused any issues at all.

I have put in some time on the forums and know that removing the following mods has solved the problem for many:

Birds and Flocks

Real Wildlife

Distant Detail

Unique Region Names

Realistic Animals and Predators

Werewolves of Skyrim

Scenic Carriages

Additionally several mods which affect the movement of spouse and/or adopted children.

In my case however (and I'm sure I'm not alone here) I don't use any of the above mods and never have, with the exception of Distant Detail, which I have tried disabling/replacing with Hearthfire version to no effect. I also use no mods which add any spawn-points to the world; I know they can cause issues.

I have tried pretty much everything I can think of and everything I have seen suggested so far; disabling all likely mods, re-verifying cache files, adding mods which are intended for use with Hearthfire and alter the worldspace of the specific steading (ie: Fortified Heljarchen etc.) Nothing has made any difference.

When building I don't even see a roped-off area where the house should be, I get absolutely nothing at all appear. As mentioned above, the 'quest' remains static at the 'Use the drafting table to build your house' stage indefinitely, which is perhaps where the problem really lies.

If anyone has managed to resolve a similar issue with any methods I don't know about please suggest; I really can't imagine what would block the building of this particular steading and not the other two. I'm about to give up and send my 3rd character to live in Winstad...

List your mods list first if you want some help you need to give us proper information

I was asking in case anyone had specifically had this issue and had resolved it; I don't expect anyone here to be able to pull a rabbit out of a hat. It could potentially be pretty much anything. My mod list is in the spoiler below.

Open all of them in TES5Edit. Once this done, for each of them, scroll down to "Workspace", expand "Tamriel", look for "Block -1,0", then scroll down and see which of them makes changes to "Sub-block -1,2". And you'll get your culprit.

Have you tried disabling ALL your mods? Even texture/graphic mods? Worth a shot. Dont make/overwrite any saves while doing this.

I've not tried disabling all mods for the simple reason that the game will not run if I do that! Some of them are that integral to the save in question (ie: they pertain directly to the character I am playing, such as the race, armour etc.) Most of the mods I did disable were in fact texture and graphic type mods, though.

I have never messed with TES5 Edit, so not sure what I'm doing, but will give it a go. Pretty clear instructions, ladyonthemoon - thank you, I'll try - seems like it might be straightforward if it works...

It's the only way to visualize where the problem is but you're going to need patience, given the number of mods you're using. Ask away if you need help. And, once you've found one mod that modifies the said zone, you'll have to explore all the others too, in case more than one messes up with it. After that, instead of removing the culprit, you will be able to mod it so that it no longer interferes with Hearthfire.

It's actually "Sub-block -1,0", "Sub-block -1,2" and "Sub-block -1,3" that you'll have to verify in your mods.

Ok, thanks for that. Will try...

Unique Region Names, for me that was the one that made it work again by disabling. Revert to a save before you start drafting/building.

Edit : i should read your post more carefully before posting.

Is that your mod load order? Paste the BOSS version.

CoT is it not, as I have used it successfully. What is Heljarchen Reform?

in addition,

It's probably climates of tamriel causing the crash. You just keep that one enabled and try removing the others. If the tesedit doesn't seem to help.