Remodeling an attic that has already been finished can cost between 12 000 30 000 depending on the scope of work and materials used.
Cost of adding room in attic.
Costs below are figured at 86 and 208 per square foot to show the most basic cost to the highest.
They involve removing your roof and attic adding a new floor walls and roof for several rooms.
Ceilings building codes stipulate that in rooms with sloped ceilings such as attics at least 50 of the square footage must have ceilings that are 7 feet or higher to be considered livable space.
Calculating by square footage is quite accurate when trying to assess the final cost of an addition.
Cost of finishing a walk up attic finishing a walk up attic adds stairs and flooring for a total of 8 100 to 26 000.
Any electrical wiring which includes new outlets and lights will add to your costs.
For smaller homes it costs 90 000 to 120 000.
Your room addition project cost will depend on the number of square feet material and construction costs repair work required on the existing structure to complete the add on and what contractors in your area are charging for the job.
For an attic ceiling that will cost about 1 500.
The national average cost of a room addition is 25 000 but ranges from 10 000 to 80 000.
Most attic rooms also need to have basic baseboards added which start at 1 000 to install.
The price to install a staircase ranges from 1 000 to 2 900 depending on the style and materials.
Converting unfinished attic space into a 15x15 foot bedroom and a 5x7 foot bath with shower as well as a 15 foot dormer for head room four new windows closet space insulation finished ceilings and walls electrical wiring and lighting to code and adding a rail and baluster to an existing stairwell costs an average of 41 389 60 135 according to hanley wood however some estimates for extensive work converting attic space into an upscale living area are as high as 80 000 90 000 or.
12 x 12 room addition costs 18 000 36 000.
Adding insulation can cost anywhere between 800 3 500 depending on the size of the attic and the quality of materials used.
House addition cost by room size.
It also covers a 15 by 15 bedroom and 5.
The 49 438 price tag for the average attic renovation includes a 15 foot long shed dormer which increases headroom over a large portion of the attic floor.
This often makes the cost per square foot between 300 and 500 and it is common for the total addition cost to reach 150 000 to 200 000 for homes that are 1 000 sq ft.
10 x 12 room addition costs 15 000 30 000.
20 x 20 room addition costs 50 000 100 000.
The cost to install wood flooring is 2 500 to 6 800 a popular choice for this project.
According to the latest national association of realtors report you may recoup up to 62 of your investment when you remodel an attic.
An average 300 square foot addition costs 25 800 to 62 400 while a 400 square foot addition runs 34 400 to 83 200.