Whether you’re in need of home office , art studio, man cave, guest house ,yoga practice space , backyard AUD or room addition can be a solution , These multifunctional space can help your living arrangement also change your lifestyle.Meantime, Adding square footage to a home with a room addition or ADU is very popular home renovation projects. kitchens, mudrooms, sunrooms and home offices are popular room additions. With the conventional design and construction, this can make a big difference in how you use the space.when you decide to add a space in existing floor plan , it will need to bring in structural engineers to determine how much retrofitting is necessary to support the additional square footage to your home. .Any building coverage is the percentage of a lot covered by principal and accessory buildings.It’s not just the framing, drywall, beams, and roofing .FOUNDATION PLAN & DETAILS , CONCRETE , FLOOR PLAN , ROOF PLAN , EXTERIOR ELEVATIONS , STRUCTURAL PLAN(S) , ENGINEERS STRUCTURAL CALCULATIONS are the main things that should be ready before project started.