Cost of addition over double garage; 3 bedrooms and an open living space / bonus room? I am looking for a ballpark quote; the attached garage was built in the late 1980's. We are looking at buying a house and haven't had a home inspection done yet so I am unsure of foundation or roofing issues.
Your first step is to take your property survey to your local zoning-building department at city hall. They can tell you what the regulations are for your area of town or city.
Cost to build a home addition vary from $250 per square foot on the cheapest end to $500 / sq. ft. or even more for custom top notch work. Accurate estimated can be provided only after analyzing architectural drawings with all technical details, calculating number of man-hours for completing the project and determining the total expenses for materials, fixtures and finishing products.
Committee of Adjustment will cost $ 1,500 if you are closer than 6 ft. to the property side line and apply for a variance.
We are familiar with this style of home and would say the square footage of the garage is roughly under 400 square feet max top quality finishes $250 to $350 sq ft..if you are adding in a bathroom/ plumbing which we would recommend.
We could provide full working drawings ( HVAC, Electrical, plumbing, etc. and design details for permit for $10,000 to $15,000. and get approval from the city.
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