Home addition cost in Chico, CA
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $41,500 – $84,100
- Per sq ft
- $137 – $274
- before permit
- Versus US midpoint
- +9%
- US $57,500
- Rank of 300 metros
- #46
- 1 = most expensive
If you want to build a home addition in Chico, plan on $41,500 to $84,100 for 300 sq ft, all in. Per sq ft, that is $137 to $274 for materials and labor, with the permit on top. The local midpoint runs 9% higher than the national one. Carpenters earn a median of $34.75 an hour in the Chico area, 19% above the US median of $29.12.
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Estimated cost for 300 sq ft in Chico, CA, standard level
$54,300 to $71,300
About $178 to $233 per sq ft before permits. Labor is about 68% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $16,400 | $21,500 |
| Labor | $36,900 | $48,300 |
| Permits and fees | $960 | $1,550 |
| Total | $54,300 | $71,300 |
Cost breakdown for 300 sq ft in Chico, CA
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $12,600 | $18,900 | $25,200 | 30% |
| Labor | $28,400 | $42,600 | $56,800 | 68% |
| Permits and fees | $510 | $1,250 | $2,000 | 2% |
| Total | $41,500 | $62,800 | $84,100 | 100% |
What is behind the Chico number
Labor is 68% of the midpoint bill here, against 67% nationally. The mix of trades behind this job is carpenters (50%), cement masons and concrete finishers (10%), electricians (10%), plumbers, pipefitters and steamfitters (10%), drywall and ceiling tile installers (10%), roofers (10%). We weight each trade's local median wage by that share and compare it with the national median. In Chico the blended ratio comes out at 1.11.
On the materials line, the BEA goods price index for the Chico metro is 105.2 (US = 100). The midpoint materials bill for 300 sq ft comes to $18,900, compared with $18,000 at national prices. Permit and inspection fees are scaled by the broader index (101.2) and land at $510 to $2,000.
What nearby projects cost in Chico
Because every project leans on different trades, Chico's wage level does not move all prices equally. Against the US midpoint, detached garage runs +10% and bathroom remodel +2%.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Kitchen remodel | 120 sq ft | $19,500 – $33,200 | +5% |
| Bathroom remodel | 45 sq ft | $4,800 – $23,800 | +2% |
| Detached garage | 576 sq ft | $31,700 – $63,600 | +10% |
| Roof replacement | 2,000 sq ft of roof | $6,650 – $13,500 | +9% |
How Chico compares
Of the five closest metros, none is cheaper than Chico. Redding comes closest at about $63,100.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Chico, CAthis page | $41,500 – $84,100 | $62,800 | |
| Sacramento, CA70 miles | $42,800 – $86,700 | $64,700 | +3% |
| Redding, CA80 miles | $41,700 – $84,500 | $63,100 | level |
| Napa, CA90 miles | $45,800 – $92,700 | $69,300 | +10% |
| Vallejo, CA100 miles | $43,700 – $88,500 | $66,100 | +5% |
| Santa Rosa, CA105 miles | $45,100 – $91,300 | $68,200 | +9% |
| California (statewide) | $43,800 – $88,800 | $66,300 | +6% |
| United States | $38,000 – $77,000 | $57,500 | −8% |
Across 300 US metros, Chico comes in at #46 from the top. The priciest is Honolulu, HI at $79,600; the cheapest is Brownsville, TX at $44,300 (midpoints, 300 sq ft). Statewide, Chico is 5% below the California figure.
Other California metros
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Los Angeles, CA | 6,271,560 jobs | $43,600 – $88,400 | $66,000 | +5% |
| San Francisco, CA | 2,373,920 jobs | $49,600 – $100,500 | $75,000 | +19% |
| Riverside, CA | 1,716,760 jobs | $41,300 – $83,700 | $62,500 | −1% |
| San Diego, CA | 1,538,060 jobs | $44,000 – $89,200 | $66,600 | +6% |
| San Jose, CA | 1,134,970 jobs | $48,400 – $97,800 | $73,100 | +16% |
| Sacramento, CA | 1,080,590 jobs | $42,800 – $86,700 | $64,700 | +3% |
Cities with a workforce like Chico's
Big cities and small ones price differently, so here is Chico against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Merced, CA | 79,510 jobs | $42,200 – $85,500 | $63,800 | +2% |
| Napa, CA | 77,860 jobs | $45,800 – $92,700 | $69,300 | +10% |
| Saginaw, MI | 80,000 jobs | $39,000 – $78,800 | $58,900 | −6% |
| Racine, WI | 76,280 jobs | $39,200 – $79,300 | $59,300 | −6% |
Pick a size, pick a tier: home addition pricing in Chico
Three bands are cut from the same cited range and localized for Chico wages and prices. They overlap on purpose: a good standard job and a modest premium job can cost the same. The grid below prices the same bands at 3 common sizes.
Basic
$41,500 to $58,600
Bump-out or simple room without plumbing
Standard
$54,300 to $71,300
Standard room addition with HVAC and electrical
Premium
$67,100 to $84,100
Large addition with bath or kitchen and a new foundation
| Size | Basic | Standard | Premium |
|---|---|---|---|
| bump-out (100 sq ft) | $14,200 – $20,300 | $18,700 – $24,800 | $23,300 – $29,400 |
| 20x20 room (400 sq ft) | $55,200 – $77,700 | $72,100 – $94,600 | $89,000 – $111,500 |
| large suite (600 sq ft) | $82,600 – $116,000 | $107,500 – $141,000 | $132,500 – $166,000 |
Home addition: what moves the price in Chico
Type of addition
A new room is $125-$250 per sq ft; a bump-out $85-$200; an attic conversion $50-$150; a garage conversion $50-$200 (HomeGuide).
Plumbing and fixtures
Adding a bathroom or kitchen drives the price up the most.
Permits
Construction permits run $500-$2,000, or $5-$21 per $1,000 of project cost (HomeGuide).
Chico labor market for home addition
Wages are the part of this estimate that changes most from town to town. 6 trades carry the job here, and each is compared with its US median. The weighted result for Chico is 1.11 times the national level.
For carpenters (47-2031, weighted 50%) the local median is $34.75 an hour, which is 19% above the national $29.12. The middle half of them earn between $24.79 and $38.46 an hour. BLS counts 390 of them working in the area, 49.9 for every 10,000 jobs (US: 43.1), so the local bench is deeper than average.
For cement masons and concrete finishers (47-2051, weighted 10%) the local median is $28.71 an hour, which is 5% above the national $27.41. The middle half of them earn between $24.32 and $37.49 an hour. BLS counts 150 of them working in the area, 19.2 for every 10,000 jobs (US: 13.3), so the local bench is deeper than average.
Electricians (47-2111), 10% of the weighting: a median of $31.44 an hour, 3% above the US median of $30.38. The middle half of them earn between $27.55 and $42.44 an hour. About 320 work in the metro. That is 40.9 per 10,000 jobs, compared with 48.7 nationally, so expect fewer local crews to bid.
For plumbers, pipefitters and steamfitters (47-2152, weighted 10%) the local median is $29.20 an hour, which is 5% below the national $30.67. The middle half of them earn between $24.06 and $39.29 an hour. BLS counts 180 of them working in the area, 23.0 for every 10,000 jobs (US: 30.0), so the local bench is thinner than average.
Drywall and ceiling tile installers (47-2081), 10% of the weighting: a median of $29.52 an hour, 4% above the US median of $28.33. The middle half of them earn between $24.20 and $35.21 an hour. About 60 work in the metro. That is 7.7 per 10,000 jobs, compared with 5.3 nationally, which suggests plenty of local crews to bid.
For roofers (47-2181, weighted 10%) the local median is $29.38 an hour, which is 10% above the national $26.65. The middle half of them earn between $27.80 and $31.30 an hour. BLS counts 100 of them working in the area, 12.8 for every 10,000 jobs (US: 8.7), so the local bench is deeper than average.
Quotes come from real crews, not medians. If the carpenters on your job are paid at the 75th percentile ($38.46 an hour) instead of the median, the labor line grows by about $2,450. At the 25th percentile ($24.79) it shrinks by about $6,550. The total moves by 3.9% or 10.4%, so wages alone rarely explain a quote that is far outside our range.
For context on the local economy, BLS counts 78,220 jobs in the Chico area. That makes it the 241st largest of the 300 metros we cover, with 0.05% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 50% | $24.79 | $34.75 | $38.46 | $29.12 | 1.19 | metro |
| Cement masons and concrete finishers (47-2051) | 10% | $24.32 | $28.71 | $37.49 | $27.41 | 1.05 | metro |
| Electricians (47-2111) | 10% | $27.55 | $31.44 | $42.44 | $30.38 | 1.03 | metro |
| Plumbers, pipefitters and steamfitters (47-2152) | 10% | $24.06 | $29.20 | $39.29 | $30.67 | 0.95 | metro |
| Drywall and ceiling tile installers (47-2081) | 10% | $24.20 | $29.52 | $35.21 | $28.33 | 1.04 | metro |
| Roofers (47-2181) | 10% | $27.80 | $29.38 | $31.30 | $26.65 | 1.10 | metro |
| Blended | 100% | 1.11 | |||||
Climate in Chico: timing your home addition job
We use NOAA's 1991-2020 climate normals for Chico Univ Farm (5 miles from the city center). These are 30-year monthly averages, not forecasts.
October through June is the stretch where digging, grading and setting material in the ground runs into the fewest weather problems in Chico (9 of 12 months). July, August and September have an average daytime high of 90°F or more.
Chico gets about 27 inches of precipitation in a normal year. The wettest months are January, February and December (5.1 inches in February). Inside the workable window, May and June are the driest, at 1.4 and 0.6 inches. The station averages about 99 days a year at 90°F or above.
Does the season change the price? Probably, but we do not have a sourced seasonal price curve, so the estimator shows a year-round figure and does not adjust by month. When you collect quotes, ask whether scheduling in a slower month gets a better rate.
| Month | Avg high °F | Avg low °F | Precip (in) | For this job |
|---|---|---|---|---|
| Jan | 56 | 36 | 5.1 | Workable |
| Feb | 62 | 38 | 5.1 | Workable |
| Mar | 67 | 42 | 3.6 | Workable |
| Apr | 73 | 45 | 1.9 | Workable |
| May | 81 | 52 | 1.4 | Workable |
| Jun | 89 | 57 | 0.6 | Workable |
| Jul | 95 | 61 | 0.0 | Hot |
| Aug | 94 | 59 | 0.1 | Hot |
| Sep | 91 | 55 | 0.3 | Hot |
| Oct | 80 | 47 | 1.7 | Workable |
| Nov | 65 | 40 | 2.4 | Workable |
| Dec | 57 | 36 | 5.0 | Workable |
Get 3 local quotes
Tell us about the job and we will try to connect you with up to three local contractors for written quotes. It is free and you are under no obligation to hire. Your estimate of $54,300 to $71,300 for Chico, CA is attached.
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Home addition in Chico: your questions
+How much does it cost to build a home addition in Chico?
For 300 sq ft, expect $41,500 to $84,100 in the Chico area. A standard-spec job lands at $54,300 to $71,300. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for home addition in Chico?
About $137 to $274 per sq ft for materials and labor, plus $510 to $2,000 for the permit if one is needed. The US range is $125 to $250.
+Is home addition cheaper in Chico or Sacramento?
Sacramento is 70 miles away. The midpoint for 300 sq ft there is $64,700, which is 3% more than Chico ($62,800). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Chico?
About 68% at the midpoint, or $42,600 out of $62,800. Materials are 30% and permits 2%. Nationally, labor is 67%.
+What would 20x20 room (400 sq ft) cost in Chico?
$55,200 to $111,500. Pick a different size in the estimator above to get your own number.
+Does home addition need a permit in Chico?
Often, but rules are set by your city or county building office, so call before you hire. Budget $510 to $2,000 for fees in the Chico area (our national range of $500 to $2,000 scaled by the local price level).
+Is Chico expensive for home addition compared with the rest of California?
Chico is 5% below the California statewide estimate ($66,300 at the midpoint). We cover 23 metros in California; see the state page to compare them.
+What do carpenters earn in Chico?
The BLS median is $34.75 an hour in the Chico area, compared with $29.12 nationally. The 25th to 75th percentile range is $24.79 to $38.46.
+What do basic and premium home addition work cost in Chico?
For 300 sq ft, basic work runs $41,500 to $58,600 and premium work $67,100 to $84,100. Basic means: bump-out or simple room without plumbing. Premium means: large addition with bath or kitchen and a new foundation.
+When is the best time to build a home addition in Chico?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are October through June. May and June are typically the driest of those months. Local contractors' schedules matter as much as the weather, so book early for the busy months.
Home addition near Chico
Where these numbers come from
Base prices are national ranges from the sources below. We scale labor by local BLS wages, materials by BEA goods prices and permits by the BEA all-items price level. Full method on the methodology page.
- HomeGuide: How Much Does a Home Addition Cost? (2026) (accessed November 4, 2026)
- Cost to Renovate: Renovation Labor Report 2026: Where the Money Goes (accessed November 4, 2026)
- HomeGuide: 2026 Building Permit Costs | Fees & Cost Calculator (accessed November 4, 2026)
- BLS Occupational Employment and Wage Statistics, May 2025
- BEA Regional Price Parities, 2024
- NOAA NCEI U.S. Climate Normals, 1991-2020
Note on derived figures: Materials = 32% of the installed price, from Cost to Renovate's mid-range 'Structural' category split (56% labor, 32% materials, 11% permits and design). It is a category average rather than an addition-specific figure.