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New Construction Homes in Newcastle, CA

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Homes for sale by state
Home buying tips
Before you start looking
The buying timeline

Afford it

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How much can I afford?
Get pre-approved

Make the deal

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3 beds New construction

1 listing

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What's my home worth?
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Get an instant cash offer
Buy before you sell

Resources

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When should I sell?
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Find a seller's agent

New Construction Homes in Newcastle, CA

New Construction Homes in Newcastle, CA

1 Listing

New Construction Homes in Newcastle, CA

1 Listing

Your local brokerage

TO

Thomas O'Leary

Realty.com

Lic. #01840925

51Active
$2,125,000
3 bd · 4 ba · 4,466 sqft
3599 Hector Rd, Newcastle, CA
Jonathan Minerick · HOMECOIN.COM
Your local brokerage
Thomas O'Leary
Realty.com
Lic. #01840925
Call Thomas

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L. Custen Realty, Inc. d/b/a Realty.com/L. Custen Realty CT, LLC d/b/a Realty.com (Tom O’Leary-Broker)(CT properties only), 8323 Southwest Freeway, Suite 900, Houston, Texas 77074

The information provided by this website is for the personal, non-commercial use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Listing data is derived from various Multiple Listing Services; each source MLS and its required disclaimer are shown with the listings on the applicable page. Realty.com is an independently owned and operated brokerage.

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Contra Costa Association of REALTORS: Bay East ©2026. CCAR ©2026. bridgeMLS ©2026. Information Deemed Reliable But Not Guaranteed. This information is being provided by the Bay East MLS, or CCAR MLS, or bridgeMLS. The listings presented here may or may not be listed by the Broker/Agent operating this website. This information is intended for the personal use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Newcastle, CA community profile

Area: 25.5 sq. mi.

Source: HJN community data

Newcastle housing market

August 2026

Homes that sold · County records, as of Aug 31, 2026

Median sale price: $817,500$614,250–$1,011,250 typical range
Price per sq. ft.: $392
Sales: 12
Paid in cash: 33.3%

Price trend · Assessor repeat sales, as of Aug 31, 2026

Year-over-year: -46.7%