Renovating a home is a big deal. Renovating a NYC apartment? That's often an even bigger deal, with lots of "only in New York" moments (Department of Buildings audits, co-op board approvals, and so on). We've rounded up some common mistakes that newbie renovators make, so you can sidestep these particular minefields:

Rushing through the plans: Work out your construction specifications in mind-numbing detail before you start; ambiguity is the enemy of staying on track and on budget. And do a walk-through with the electrician, plumber, general contractor, and other relevant professionals.

Picking the lowball (or lone) offer: Always compare contractors and prices, and remember that if someone's quote seems too good to be true, it probably is.

Underestimating time and expense: The project will take longer and cost more than you expect. Prepare for it.

Skipping the interior designer on a gut job: Don't even try it. You'll find yourself totally overwhelmed by the options out there.

Staying put through the reno: You’ll have enough stress when you're overseeing a renovation, but living in the midst of it all will compound that stress. Factor short-term housing into your budget.

For more, read "10 first-time renovation mistakes even New Yorkers make."