We completed our purchase in March after a 13 month build.

It has been the most painful property purchase we ever made.

I wish I had some of the info shared here.

13k over the original budget deserves a round of applause!

We added 130k to the builders budget, it should have 250k!

As you have found out their budgets for any thing from floors, kitchens garden bathrooms etc etc are for crap and generally can never be met.

The advise from our builder was poor as was that from the architect.

So, the house is finished, we are generally happy, but we have another 50 to 60K to spend before we have exactly what we want.

It would be interesting to know what the price per sq mtr is from area to area. 5 to 6 k for an apartment sounds very reasonable to me. we looked at one in Lutry. The original price was just over 15k per sq metre. After signing the contracts, paying our deposit etc, they proceeded to give us an additional invoice for 110,000 Chf's for upgrades, the developer had decided on, not even our choices. So per sq mtr just over 16k!

Good luck with your move, hope it all goes well for and you have furniture to sit on.