How do I estimate renovation costs before buying?

Estimating renovation costs before you buy is essential for making a smart offer. Start by listing all the work you want to do, from major items like kitchen and bathroom remodels to smaller items like flooring and paint. Get quotes from at least three licensed contractors. Be specific about materials and finishes, as costs vary significantly. Use online resources like the National Association of the Remodeling Industry's Cost vs Value report for regional cost ranges. In New Jersey, renovation costs are generally higher than the national average due to labor costs and permit fees. Add a contingency of 15% to 20% for unexpected issues that arise during construction. Older homes often reveal surprises once walls are opened. Factor in the cost of permits, which can be several hundred to several thousand dollars depending on the scope of work. If you cannot live in the home during renovations, budget for rent or temporary housing. The total cost of renovations plus the purchase price should not exceed the after-repair value of the home by more than 10% to 20%.