Home Add On Costs
| Item | Qty | Low | High |
|---|---|---|---|
| Material, Fixtures | start qty | $0 | $0 |
| Project Labor | start qty | $0 | $0 |
| Project Supplies | $0 | $0 | |
| Total | $0 | $0 |
To estimate costs for your Home Add On project, change the size and default options below...
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Addition Floor Area 250 square feet
Material Grade Basic builder grade
Labor Type Vendor supplied
Floor Shape L or U shape (up to 8 corners)
Project Options
Get an INSTANT estimate of the cost to expand a home's first floor in your zip code! Do you need a fair, trustworthy, 2018 estimate of material and labor costs for a home addition? Just select items from the Project Options list, enter your job size and choose Update.
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Home Addition - Pricing Notes
- This estimate for a 2018 Home Addition is derived from the unit cost method summarized in the American Institute of Architects Detailed Cost Estimating - Best Practices. This approach is used by professional designers, contractors, engineers and estimators and uses current wages, material costs, worker productivity benchmarks, supervisory overhead and markup rates.
- Labor costs for the home addition are based on United States Bureau of Labor Statistics Industry-Specific Employment and Wage Estimates - and adjusted for fair overhead, profit and as indicated, supervisory markup.
- Labor hours include time for basic job planning, setup and site preparation, material handling, fabrication of installed materials, installation and cleanup.
- Supplies include fittings, adhesives, sealers, finishes and accesssories, as well as equipment costs and disposal fees required to complete the home addition as specified in the Project Options section.
- See the Material Costs summary page for other finish and fixture options.
- The home addition estimate does not include sales taxes, permit fees or hazardous material remediation costs (e.g. mold, asbestos, lead).
- Finish options (fixtures, appliances, cabinetry, flooring, etc.) must be estimated separately. See the Project Costs summary page for a list of room finishing project calculators.
- These estimates are for BASIC work performed in serviceable conditions by qualified trade professionals using MID GRADE materials.
Home Addition - Pricing References
- Detailed Cost Estimating American Institute of Architects, John Wiley and Sons, Aug 2014, Michael D. Dell Isola
- Carpentry and Building Construction, Student Text Glencoe/McGraw-Hill; 6th edition, Jan 2003, Mark Feirer, John Feirer, ISBN 007822702X
- Framing Floors, Walls and Ceilings (For Pros By Pros) Taunton Press, May 2005, Fine Homebuilding Magazine, ISBN 1561587583
- Consumer Reports Buying and Planning Guides for Home and Garden Consumer Reports, Aug 2014, Website Staff
- Building Materials Data and Reports the National Association of Home Builders, Jul 2012,
- National Occupational Employment and Wage Estimates United States Bureau of Labor Statistics, Aug 2014, BLS Staff
Home Addition - Related
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