Same... the upgrades worked just fine as long as I didn't leave Toussaint... the second I did the quest got stuck.

It was working on the bed, guest room, stable and the garden... neither of them will finish no matter how long I wait and I am way to far, to reload a point before I left Toussaint.

Working okay for me so far. Only the whetstone won't show up, weird bug, armor bench is there though.

Weird bug for me, renovations all done and work but I can't interact with the alchemy table to work on mutagens!!

I've encountered the same bug, the house is still covered in scaffolding and the shelves are still in the way

Same here, also left DLC area to visit one herbalist and probably bugged renovation that way.
I really hope this will get fixed in next path or maybe hotfix, although this is not as urgent as lock-on problem other people have I guss.

Odd, they all showed up on mine. The only thing that is messed up on mine is some floating clutter and a candle where it looks like a table would go in the room behind BB. Other than that all the renovations succeeded to show up.

Folks from steam linked to this thread CDPR forum
There's also this post regarding Corvo Bianco renovations

In short:

* bug occurs if you leave region
* they're aware and working on it, but no eta, sadly
* fix will work on save files

Yep. Same here. But even more strange version of my bug. All renovation I bought in the house shoved up but outside of the house nothing changed after renovation. Bought renovation for garden and whetstone and armourers table but after time has passed and it said it is ready nothing showed up no upgrades appeared but for the house it worked. Strange. I suppose am lucky to have acces to the cellar but the mutagen table stopped working...so just partly lucky :)

ETA isn't known yet? At least, very rough ETA?
Please, give some information about it. This is stopper issue for me, I have played too much from the last save before bug occured.

Lol, looks like I begged 1.22 patch :)
Thanks a lot!

many thanks for the huge patch and the new art dealer.
if you could look into improving the lighting in Corvo Bianco it will be a perfect home for G'

thx again

This is an ongoing issue in 2020...lol (cries inside). I never left Toussaint to begin with, I was only fast traveling or quests automatically set time or skip time, and no idea when it triggered bug. I have been doing few dozens of quests and I wont reload the damn save that has been who-the-fuck-knows-how-long ago.

Not even the bank is giving me the money they basically stole when Geralt was "playing" dead, and waited more than week as well, yet the little piece of shit dwarf isn't giving back my darn coin!

If anyone is wondering in 2020, I found a fix, or not exactly a fix, but a workaround that wont break anything...at least not permanently :D
I made a post on reddit (under title of "Corvo Bianco house is not upgrading" on r/witcher) about asking for a solution, and through experimenting I found a ridiculous and a random solution to how to deal with this.

Basically you need to be able to use console commands and use a command called TM('number'), if you are unfamiliar with it, then this command allows you to speed or slow down in-game time, default is around 0.25 I think, where 0.01 is a real time second and 1.0 is minute per second in the game, so if you type 1.0 in those brackets without quotes, your in game minutes will fly like seconds, just to understand the numbers and the command usage.

So, what I did was an experiment of speeding up time forward, I did with 10 (as in 10.0 not 0.10), then with 50, and 100, but nothing worked no matter how fast time speeds up, I even went as far as 1000 and 10 000, it was ridiculously funny to look how days and night changes as if someone would turn on and off flashlight constantly. :D

So that didn't worked...and I thought...what if I add minus (-) sign, as in going backwards in time, and I started with -100 I think, and it worked, Sun was going backward etc. What I tried right away after that was going into -100 000... oh man, that glitched my game visually, everything went into psychedelic vision, inverted colors etc., like mountains turned purple, clouds were red or something, blue-ish colors, etc., very outer worldly visuals happened, it was trippy so to say, oh and Sun, or some white sprites, balls or whatever, were all around me, glitched etc.

Then, after a while of weird experiences I stopped it by typing TM(0.05), going from negative to positive time. Of course the psychedelic stuff remained for that moment and the right corner time showed -0.40 days or something like that, forgot already, but I think the stuff can be recreated at any moment. When I was done playing around with it, I added same time that was in negative to positive, meaning that I wrote TM(100000), 100 000 basically.

As it went forward it glitched out from the psychedelic state and went to normal, and soon after, because of high speed of time moving forward, it showed quest as completed and the grinding stone with table finally got delivered, and estate was upgrade.

My guess is that I somehow reset the time by going backwards, and the moment it went into minus days and hours, and then back to forward, after it reached that 0 days, it got restarted or reset, and it started the countdown of those days for the quest.