How much does it cost to build a house in Hawthorne?

A new 1,800 sq ft, 3-bedroom home costs about $873,000 to build, all in, including building, site work, city fees and design. Land is extra: about $487,500 for a typical lot in areas like Hawthorne.

What is a new home worth in Hawthorne?

About $1,462,500 for a new 1,800 sq ft home in an area like Hawthorne.

What a new home costs in Hawthorne (2026)

Building a new custom home, tearing down and rebuilding, or rebuilding after a fire in Hawthorne? Hemisphere A&E is an architecture and design-build firm: one team for design, permits and construction. Here are typical numbers, the local rules, and your next step.

Typical new home numbers in Hawthorne

A new 1,800 sq ft, 3-bedroom home costs about $873,000 to build, all in: building, site work, city fees and design. Land is extra.
Typical land value for a lot in areas like Hawthorne: about $487,500.
Finished value: about $1,462,500 (about $650 per sq ft plus a new-home premium).
A new home like this could rent for about $6,750 a month.

Run the free new home cost calculator for Hawthorne

Building permits and local rules in Hawthorne

Who runs permits

City of Hawthorne Planning Division and Building, through the Citizen Self Service portal.

SB 9 and lot splits

California law (SB 9) can allow a second home or a lot split on many single-family lots. Hillside, fire and historic rules can limit it.

What can slow you down

Grading, drainage and fire sprinklers may need separate permits.
LA County Fire must sign off before the permit is issued.
Homes near LAX flight paths may need sound-blocking features.

Free lot check in Hawthorne

Send Hemisphere A&E your address. We look up your zoning and lot size, what fits (ADU, junior ADU, SB 9, new home, apartments, remodel or business space), red flags like fire zones or hillside rules, and a rough cost range. No cost, no pressure. Email info@hemisphereae.com or call (619) 762-7144.