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- Listed price
- $1,425,000
- Listed Oct 14, 2026 · $485/sq ft
- Last sold price
- No recorded sale
4 beds|3 ba|2,938 sqft|33,480 sqft lot|1988 Built|7 MLS days on market
109 Costanza Dr, Martinez, CA 94553
Property Description
OPEN HOUSE SAT & SUN 10/24 - 10/25 1PM-4PM Offering Nearly 3000 Sq Ft of Elegant Living Space, Nestled on a Large Lot with Nature as the Front & Rear Neighbors, This Home is a True Must See! The Thoughtful and Flexible Floor Plan is Complete with a Bedroom and Full Bath on the Ground Level, and 3 Generously Sized Bedrooms on the Second Floor. The Primary Suite Has Soaring Ceilings and Includes a Separate Retreat- Complete w/Fireplace- an Ideal Private Space to Relax and Enjoy the View of the Natural Surroundings. The Primary Bath Features a separate shower & jetted Tub and Spacious Walk-In Closets. The Inviting Kitchen Offers Ample Cherry Cabinetry, Stainless Steel Appliances and Granite Slab Counter Tops- and Opens to the Family Room. The Gracious Dining Room Opens to The Elegant Living Room - Creating an Ideal Space for Entertaining. Beautifully Landscaped Grounds, an Oversized Patio, a 3 Car Garage, Dual Zoned HVAC, Updated Fixtures and More!
Listing agent: Meghan DiehlDRE #01323230meghandiehl520@gmail.com, Listing office: Keller Williams Realty
MLS data updated 10/22/2026, 8:16:03 PM PT
Source: CRMLSMLS #: 41151204
Belmont insights
Price & property history
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Latest asking price$1,425,000
Oct 14, 2026
Available records12026
From MLS recordsActual listing and closing events
Prices use the left axis; mortgage rates use the right. Hover, tap, or focus the chart and use the arrow keys. Red SOLD badges mark recorded sales.
This home · nearest recorded event
$1,425,000Original asking price · Oct 14, 2026ZIP 94553 · Oct 2026
No monthly averageAt least 3 eligible sales in this month are required.30-year fixed mortgage benchmark
No weekly rateNo published rate within 7 days of this date.This home · 1 price recordsOct 14, 2026 – Oct 14, 2026
ZIP 94553 · same property typeLoading eligible closed sales…
Freddie Mac · national weekly ratesLoading mortgage-rate history…
Recorded sales in this period (0)
No recorded sales in this range. Select All available for older records; missing records do not mean the home never sold.
ZIP averages use publicly displayable closed sales from our licensed MLS feed, matched to the same ZIP and exact property type. Months with fewer than 3 sales are omitted; the current month is incomplete. Lines connect available monthly observations across gaps and do not represent measured prices in missing months. These averages are not adjusted for size, condition, or location within the ZIP, and are not an appraisal. Feed coverage may not include every sale. All available shows the available home and ZIP history, with mortgage rates over the same dates.
Mortgage benchmark: Freddie Mac Primary Mortgage Market Survey®. © Freddie Mac. Weekly national 30-year fixed rates, not APRs or a loan quote. Actual terms vary. Methodology changed in November 2022. The chart does not establish that interest-rate changes caused a home’s price changes.
Lines connect recorded asking and sale prices. They are visual guides, not estimates of the home’s value between those dates.
View listing & sale records
No earlier records were returned by our current sources. This does not mean the home has never sold.
MLS records may be incomplete. Earlier asking prices are not sale prices.