Home Addition Cost by City (2026)
Ground-up square-footage addition (foundation, framing, finish). Below are typical costs for a per 500 sq ft, adjusted for each metro's construction-cost factor relative to the national average. Use the interactive estimator to set your scope and print a take-to-contractor plan.
Home Addition cost across U.S. metros
Costs reflect each city's location factor applied to national-average typical-project ranges (medium scope). Select any city to open its full regional cost page with every project priced.
| City | Factor | Low | Mid | High |
|---|---|---|---|---|
| New York, NY | 1.45× | $58,000 | $130,500 | $261,000 |
| San Jose, CA | 1.42× | $56,800 | $127,800 | $255,600 |
| San Francisco, CA | 1.40× | $56,000 | $126,000 | $252,000 |
| Boston, MA | 1.30× | $52,000 | $117,000 | $234,000 |
| Los Angeles, CA | 1.28× | $51,200 | $115,200 | $230,400 |
| Seattle, WA | 1.25× | $50,000 | $112,500 | $225,000 |
| Washington, D.C., DC | 1.18× | $47,200 | $106,200 | $212,400 |
| Philadelphia, PA | 1.10× | $44,000 | $99,000 | $198,000 |
| Chicago, IL | 1.12× | $44,800 | $100,800 | $201,600 |
| Denver, CO | 1.10× | $44,000 | $99,000 | $198,000 |
| Portland, OR | 1.08× | $43,200 | $97,200 | $194,400 |
| Miami, FL | 1.08× | $43,200 | $97,200 | $194,400 |
| Las Vegas, NV | 0.98× | $39,200 | $88,200 | $176,400 |
| Phoenix, AZ | 0.96× | $38,400 | $86,400 | $172,800 |
| Orlando, FL | 0.93× | $37,200 | $83,700 | $167,400 |
| Austin, TX | 0.95× | $38,000 | $85,500 | $171,000 |
| Nashville, TN | 0.93× | $37,200 | $83,700 | $167,400 |
| Charlotte, NC | 0.92× | $36,800 | $82,800 | $165,600 |
| Dallas, TX | 0.92× | $36,800 | $82,800 | $165,600 |
| Columbus, OH | 0.95× | $38,000 | $85,500 | $171,000 |
| Houston, TX | 0.90× | $36,000 | $81,000 | $162,000 |
| Detroit, MI | 0.95× | $38,000 | $85,500 | $171,000 |
| Minneapolis, MN | 1.02× | $40,800 | $91,800 | $183,600 |
| Kansas City, MO | 0.94× | $37,600 | $84,600 | $169,200 |
| Atlanta, GA | 0.95× | $38,000 | $85,500 | $171,000 |
| San Antonio, TX | 0.91× | $36,400 | $81,900 | $163,800 |
| San Diego, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Fort Worth, TX | 0.91× | $36,400 | $81,900 | $163,800 |
| Jacksonville, FL | 1.01× | $40,400 | $90,900 | $181,800 |
| Indianapolis, IN | 0.88× | $35,200 | $79,200 | $158,400 |
| Louisville, KY | 0.93× | $37,200 | $83,700 | $167,400 |
| Oklahoma City, OK | 0.84× | $33,600 | $75,600 | $151,200 |
| Washington, DC | 1.34× | $53,600 | $120,600 | $241,200 |
| El Paso, TX | 0.91× | $36,400 | $81,900 | $163,800 |
| Memphis, TN | 0.89× | $35,600 | $80,100 | $160,200 |
| Baltimore, MD | 1.21× | $48,400 | $108,900 | $217,800 |
| Milwaukee, WI | 0.97× | $38,800 | $87,300 | $174,600 |
| Albuquerque, NM | 0.90× | $36,000 | $81,000 | $162,000 |
| Fresno, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Tucson, AZ | 1.08× | $43,200 | $97,200 | $194,400 |
| Sacramento, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Kansas City, MO | 0.89× | $35,600 | $80,100 | $160,200 |
| Mesa, AZ | 1.08× | $43,200 | $97,200 | $194,400 |
| Raleigh, NC | 0.97× | $38,800 | $87,300 | $174,600 |
| Colorado Springs, CO | 1.02× | $40,800 | $91,800 | $183,600 |
| Omaha, NE | 0.91× | $36,400 | $81,900 | $163,800 |
| Virginia Beach, VA | 0.99× | $39,600 | $89,100 | $178,200 |
| Long Beach, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Oakland, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Bakersfield, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Tulsa, OK | 0.84× | $33,600 | $75,600 | $151,200 |
| Tampa, FL | 1.01× | $40,400 | $90,900 | $181,800 |
| Aurora, CO | 1.02× | $40,800 | $91,800 | $183,600 |
| Arlington, TX | 0.91× | $36,400 | $81,900 | $163,800 |
| Wichita, KS | 0.88× | $35,200 | $79,200 | $158,400 |
| Cleveland, OH | 0.94× | $37,600 | $84,600 | $169,200 |
| New Orleans, LA | 0.91× | $36,400 | $81,900 | $163,800 |
| Henderson, NV | 1.01× | $40,400 | $90,900 | $181,800 |
| Honolulu, HI | 1.85× | $74,000 | $166,500 | $333,000 |
| Anaheim, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Lexington, KY | 0.93× | $37,200 | $83,700 | $167,400 |
| Stockton, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Newark, NJ | 1.19× | $47,600 | $107,100 | $214,200 |
| Riverside, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Irvine, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Corpus Christi, TX | 0.91× | $36,400 | $81,900 | $163,800 |
| Santa Ana, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Cincinnati, OH | 0.94× | $37,600 | $84,600 | $169,200 |
| Greensboro, NC | 0.97× | $38,800 | $87,300 | $174,600 |
| Pittsburgh, PA | 0.96× | $38,400 | $86,400 | $172,800 |
| St. Paul, MN | 0.93× | $37,200 | $83,700 | $167,400 |
| Durham, NC | 0.97× | $38,800 | $87,300 | $174,600 |
| Jersey City, NJ | 1.19× | $47,600 | $107,100 | $214,200 |
| Lincoln, NE | 0.91× | $36,400 | $81,900 | $163,800 |
| North Las Vegas, NV | 1.01× | $40,400 | $90,900 | $181,800 |
| Plano, TX | 0.91× | $36,400 | $81,900 | $163,800 |
| Gilbert, AZ | 1.08× | $43,200 | $97,200 | $194,400 |
| Anchorage, AK | 1.29× | $51,600 | $116,100 | $232,200 |
| Madison, WI | 0.97× | $38,800 | $87,300 | $174,600 |
| Reno, NV | 1.01× | $40,400 | $90,900 | $181,800 |
| Chandler, AZ | 1.08× | $43,200 | $97,200 | $194,400 |
| St. Louis, MO | 0.89× | $35,600 | $80,100 | $160,200 |
| Chula Vista, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Fort Wayne, IN | 0.88× | $35,200 | $79,200 | $158,400 |
| Buffalo, NY | 1.25× | $50,000 | $112,500 | $225,000 |
| Lubbock, TX | 0.91× | $36,400 | $81,900 | $163,800 |
| Laredo, TX | 0.91× | $36,400 | $81,900 | $163,800 |
| Port St. Lucie, FL | 1.01× | $40,400 | $90,900 | $181,800 |
| St. Petersburg, FL | 1.01× | $40,400 | $90,900 | $181,800 |
| Toledo, OH | 0.94× | $37,600 | $84,600 | $169,200 |
| Glendale, AZ | 1.08× | $43,200 | $97,200 | $194,400 |
| Winston-Salem, NC | 0.97× | $38,800 | $87,300 | $174,600 |
| Irving, TX | 0.91× | $36,400 | $81,900 | $163,800 |
| Chesapeake, VA | 0.99× | $39,600 | $89,100 | $178,200 |
| Garland, TX | 0.91× | $36,400 | $81,900 | $163,800 |
| Scottsdale, AZ | 1.08× | $43,200 | $97,200 | $194,400 |
| Boise, ID | 1.02× | $40,800 | $91,800 | $183,600 |
| Richmond, VA | 0.99× | $39,600 | $89,100 | $178,200 |
| Frisco, TX | 0.91× | $36,400 | $81,900 | $163,800 |
| Cape Coral, FL | 1.01× | $40,400 | $90,900 | $181,800 |
| McKinney, TX | 0.91× | $36,400 | $81,900 | $163,800 |
| Huntsville, AL | 0.85× | $34,000 | $76,500 | $153,000 |
| Salt Lake City, UT | 1.01× | $40,400 | $90,900 | $181,800 |
| Birmingham, AL | 0.85× | $34,000 | $76,500 | $153,000 |
| Rochester, NY | 1.25× | $50,000 | $112,500 | $225,000 |
| Grand Rapids, MI | 0.94× | $37,600 | $84,600 | $169,200 |
| Dayton, OH | 0.94× | $37,600 | $84,600 | $169,200 |
| Providence, RI | 1.11× | $44,400 | $99,900 | $199,800 |
| Little Rock, AR | 0.89× | $35,600 | $80,100 | $160,200 |
| Charleston, SC | 0.92× | $36,800 | $82,800 | $165,600 |
| Columbia, SC | 0.92× | $36,800 | $82,800 | $165,600 |
| Springfield, MO | 0.89× | $35,600 | $80,100 | $160,200 |
| Fort Collins, CO | 1.02× | $40,800 | $91,800 | $183,600 |
| Pensacola, FL | 1.01× | $40,400 | $90,900 | $181,800 |
| Chattanooga, TN | 0.89× | $35,600 | $80,100 | $160,200 |
| Syracuse, NY | 1.25× | $50,000 | $112,500 | $225,000 |
| Des Moines, IA | 0.89× | $35,600 | $80,100 | $160,200 |
| Spokane, WA | 1.15× | $46,000 | $103,500 | $207,000 |
| Mobile, AL | 0.85× | $34,000 | $76,500 | $153,000 |
| Shreveport, LA | 0.91× | $36,400 | $81,900 | $163,800 |
| Montgomery, AL | 0.85× | $34,000 | $76,500 | $153,000 |
| Augusta, GA | 0.91× | $36,400 | $81,900 | $163,800 |
| Savannah, GA | 0.91× | $36,400 | $81,900 | $163,800 |
| Jackson, MS | 0.86× | $34,400 | $77,400 | $154,800 |
| Baton Rouge, LA | 0.91× | $36,400 | $81,900 | $163,800 |
| Akron, OH | 0.94× | $37,600 | $84,600 | $169,200 |
| Modesto, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Oxnard, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Santa Clarita, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Fontana, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Moreno Valley, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Huntington Beach, CA | 1.41× | $56,400 | $126,900 | $253,800 |
| Fremont, CA | 1.41× | $56,400 | $126,900 | $253,800 |
Scope multipliers: Small/partial 0.65×, Medium/typical 1.0×, Large/luxury 1.6×. Estimates are planning figures, not bids.
What drives home addition cost
A home addition for a per 500 sq ft typically runs $40,000–$180,000 nationally. The final number moves most on three levers: scope (a partial refresh versus a full tear-out), material grade (builder-grade versus designer finishes), and site conditions (structural surprises, access, and local code requirements). High-cost metros such as New York or San Jose can run 40–45% above the national mid, while efficient-build metros like Houston or Dallas run 8–10% below.
DIY vs. hiring a pro
Labor is usually 30–50% of a home addition budget. Doing demolition, painting, or finish work yourself can cut cost sharply, but licensed trades are required (and worth it) for electrical, plumbing, and structural work — and most jurisdictions tie permits to professional sign-off. Use the estimator below to model both scopes, then take the printed plan to three written bids to see where DIY saves you money versus where it adds risk.
How these home addition estimates are calculated
Each city figure starts from the national-average range for a per 500 sq ft ($40,000–$180,000), then applies that metro's RSMeans location factor. Scope multipliers of 0.65× (small/partial), 1.0× (medium/typical), and 1.6× (large/luxury) let you flex the budget up or down. These are planning estimates, not bids: finish level, material choice, and site conditions can move any number 20–30% or more. Confirm current pricing with licensed local contractors and obtain written, itemized bids before committing.
Important Disclaimer (YMYL)
Renovation costs are Your-Money-Your-Life (YMYL) decisions. Every figure here is a national average compiled from third-party industry sources and changes every year. They are estimates for planning only, not quotes or bids; material choice, finish level, and site conditions can move any number 20–30% or more. Always confirm current pricing with licensed local contractors and obtain written, itemized bids before committing to a budget.
Estimate your home addition cost in New York
Adjust the inputs to your situation. Estimates apply the New York location factor (1.45× national average) and a medium / typical scope multiplier to published national-average ranges.
Base national average for a per 500 sq ft: $40,000–$180,000. Adjusted for New York (1.45×) and medium / typical scope (1×).