HomeAdvisor’s Remodel Cost Guide lists prices associated with building an addition including labor and materials, as reported by HomeAdvisor customers. . without electricity or heat, or full guesthouses that share similar costs as a detached garage addition, which run around $24,658 on average. . Installing vinyl siding and trim finishes the exterior of your addition for . 2011/06/14 – Not only will you have extra space in case you ever have long-term visitors, you’ll always have a comfortable, private place for . if you choose to have a bathroom in the space, you can expect to pay between $170 and $200 per square foot, . The extra costs will continue after you’ve completed the addition. 2018/11/22 – This includes materials and labor costs. Cost per square foot: $40. ROI: Best return on investment is for detached, which allow for added living space above the garage itself. You could include a small bathroom and kitchenette . 2015/02/21 – Calling around to various contractors and looking for the home addition costs per square foot can be a huge . and you can feel comfort in knowing the value of your home will soar because of the new work performed by . Bedroom Addition Cost: Needed Space & Increased Comfort. . Bedroom additions costs can range from $87 to $200 per square foot depending upon the actual total square foot of the project. . Adding or building A garage for your home? 2018/06/12 – . and finish it. In order to determine the cost per square footage of a garage, you need to weigh in on these details: . This means you’ll be paying extra labor costs in addition to the actual purchase of the doors. Garage doors . In addition, you may gain extra storage, much-needed room to work at crafts or hobbies, perhaps a cozy retreat (man cave, anyone?), a convenient home . The cost of building a garage starts at $30 per square foot for a basic attached unit. The above figures place the garage addition at $40 per square foot. This pricing structure assumes that carpenters charge an average of $70 per hour, electricians between $65 to $85 per hour, and painters between $20 and $35 per hour. 2017/12/19 – The average cost for a Garage Addition Contractor is $15000. To hire a Garage Addition Contractor to build your garage addition , you are likely to spend between $8000 and $15000 total. . In general, a two-car garage can add a good 600 square feet of living space. . Because the space must be comfortable, the HVAC system must be extended to the garage; installing ducts and vents .