Home Add On Costs
| Item details | Low | High | ||
| Material, Fixtures Includes basic coverage quantities and typical overage. Excludes sales tax, delivery upcharges, and items not included in the description and notes. |
*load* | $368.27 | $520.00 | |
| Project Labor Includes on site setup, site preparation, job completion, trash removal and work area cleanup. |
*load* | $368.27 | $520.00 | |
| Project Supplies Includes equipment allowance and supplies for preparation, job completion and site cleanup. |
$368.27 | $520.00 | ||
| Total Excludes sales tax, any applicable fees, dump charges, and costs for repair or remediation not mentioned in the work description. |
$368.27 | $520.00 | ||
|
Addition Floor Area 250 square feet | |
|
Material Grade Basic builder grade | |
|
Labor Type Vendor supplied | |
|
Floor Shape | |
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, 2021 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 2021 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.
References
- Detailed Cost Estimating American Institute of Architects, John Wiley and Sons, Aug 2014, Michael D. Dell Isola
- Home Improvement 1-2-3: Expert Advice from The Home Depot Homer, TLC, Dec 2021, Editorial Staff, ISBN 696213273
- Carpentry and Building Construction, Student Text Glencoe/McGraw-Hill; 6th edition, Jan 2003, Mark Feirer, John Feirer, ISBN 007822702X
- Consumer Reports Buying and Planning Guides for Home and Garden Consumer Reports, Aug 2014, Website Staff
- The Building Estimator's Reference Book , Mar 2012,
- National Occupational Employment and Wage Estimates United States Bureau of Labor Statistics, Aug 2014, BLS Staff
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