Building a cottage costs $175,000 to $350,000, averaging $250,000 on HomeAdvisor’s figures, with Angi publishing the same range and average — $125 to $300 per square foot on both (June and July 2026)23. Fixr’s page is older (updated November 2022) and prices a national average of $300,000 within a $200,000 to $400,000 range for a 1,500-square-foot cottage1. Angi and HomeAdvisor are corporate siblings, and matching figures alone don’t establish independent corroboration — their pages match on nearly every row below. HomeAdvisor’s low and high ends ($112,000 and $600,000) also match Fixr’s 2022 figures exactly; identical numbers across separately owned publishers don’t establish independent corroboration either. All figures are the latest published data from each source.
Cost by size
The siblings publish an identical size table with no prefab/custom split23:
| Square feet | Average total cost |
|---|---|
| 600 | $75,000 – $180,000 |
| 1,000 | $125,000 – $300,000 |
| 1,500 | $200,000 – $400,000 |
Fixr splits each size by build method (labor included)1:
| Size | Modular / prefab | Stick-built / custom |
|---|---|---|
| 400 sq ft | $56K – $80K | $68K – $120K |
| 600 sq ft | $84K – $120K | $102K – $180K |
| 1,000 sq ft | $140K – $200K | $170K – $300K |
| 1,500 sq ft | $210K – $300K | $255K – $450K |
| 2,000 sq ft | $280K – $400K | $340K – $600K |
Fixr’s per-square-foot rates: $140 to $200 modular against $170 to $300 stick-built, labor included1. The sibling averages fall between those bands, as published.
Where the money goes
Angi’s component breakdown2:
| Component | Average cost range |
|---|---|
| Materials | $50,000 – $140,000 |
| Labor | $40,000 – $120,000 |
| Permits | $2,000 – $10,000 |
| Site prep | $5,000 – $25,000 |
| Utilities | $10,000 – $30,000 |
| Finishing | $8,000 – $30,000 |
Fixr’s stage breakdown for a 1,500-square-foot stick-built cottage uses different groupings: pre-construction planning $4,000 to $10,000, site preparation $12,000 to $22,000, foundation $22,000 to $44,000, plumbing/electrical/HVAC $30,000 to $60,000, framing $34,000 to $68,000, exterior work $48,000 to $96,000, and interior work $50,000 to $100,0001. The two tables aren’t line-by-line comparable; both are presented as published.
Professional fees
Both siblings put a general contractor at 10% to 20% of the total project cost23. Angi’s other published fees: architect or designer $100 to $250 per hour (or 5% to 15% of the project), electrician $3,000 to $8,000, plumber $4,000 to $12,000, HVAC installer $5,000 to $15,000, land surveyor $500 to $2,000, structural engineer $1,000 to $3,500, and septic installation $3,000 to $10,000 where there’s no municipal sewer2.
Cost by region
Angi’s regional model, its figures attributed2:
| Region | Average cottage build cost |
|---|---|
| Northeast | $250,000 – $400,000 |
| Midwest | $150,000 – $280,000 |
| South | $140,000 – $260,000 |
| West | $200,000 – $400,000 |
Permits and timeline
Permit rules are set locally — confirm with your building department before starting. Published estimates: $2,000 to $10,000 on both sibling pages23. Angi puts the full planning-to-completion timeline at six months to a year2.
Resale value
Angi estimates cottages often recoup 60% to 80% of construction cost at resale2. Treat that as a publisher average, not a reliable budgeting prediction — what any cottage returns depends on your local market, and only comparable sales near you indicate what buyers will pay.
Related cost guides
See log cabin cost for the rustic route, guest house cost for a smaller backyard build, and ADU cost for a code-defined secondary unit.
Sources
- Fixr, Cost to Build a Cottage, updated November 21, 2022
- Angi, How Much Does It Cost to Build a Cottage?, updated July 31, 2026
- HomeAdvisor, How Much Does It Cost to Build a Cottage?, updated June 19, 2026