Property profile

4970 Blum Rd Martinez, CA 94553

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Property ID
US09-3864708
3,768 SF 0.31 ac Built 1947
Last sale Nov 2007·$830,000
Individually Owned Owner of record is an individual. 19-yr Hold Held for 19 years. ~ Est. High Equity Modeled equity is high. Estimate, not a fact.
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Property summary

AI-generated overview

The property is a residential structure with four bedrooms and two bathrooms, situated on a 0.31-acre lot totaling 3,452 square feet in Martinez, Contra Costa County, California. At the rear of the property is a 50-by-35-foot warehouse totaling approximately 1,750 square feet, equipped with two large roll-up doors at the front and one large roll-up door at the rear. An easement runs along the front of the property and serves both neighboring parcels.

Ownership intelligence

Who controls the opportunity?

Owner of record from public deeds, plus portfolio, hold profile and investor signals where the data supports them. Included with a plan.

Owner contacts

Can we reach the decision maker?

Skip-traced phones and e-mails of the owner. Included with a plan.

Debts

What is owed, to whom, and when it comes due

Recorded lenders, amounts and estimated maturities of the owner's loan book — included with a plan.

Property tax · 2024

What does the county charge?
$13k
Tax billed · 2024
Assessed value$1.07M
Assessed land$212k
Assessed improvement$856k
Effective rate1.23%

Value estimate

· Nov 2026
$1.13M
$1.02M – $1.24M
CAP approach$900k
Submarket $/SF estimate$1.09M

Realmo valuation models over county records and 40 qualifying comparable sales.

Recently sold

What actually traded nearby?
$348/SF
County average, outlier-cleaned · 57 recorded sales of this use type
Observed band · Q1–Q3$146 – $580
Qualifying comparables40

Cap rate analysis

How does the asset earn?

No income signal is modeled for this parcel yet — the Cap Rates tab runs the workflow.

Zoning insight

What can be built here?
C
C Civic District GF Governmental Facilities District PUD Planned Unit Development District RF Recreational Facilities District DS Downtow...
General categoryCIVIC_INSTITUTIONAL
JurisdictionCONTRA COSTA

Location intelligence

Which uses thrive at this corner?
Best fit: Realty agency
Demand heat for this use is drawn on the map · LocInt grid
Demand index
Realty agency42.7
Law Firm35.5
Restaurant34.4

Location

4970 Blum Rd Martinez, CA 94553-4322
County assessor Recorded deeds · 11 transfers 40 qualifying comp sales Zoning catalog

Every figure names its source: public record, benchmark, or modeled. Coverage varies by property — thin data is stated as missing, never invented.

Comparables

3 recorded sales · 6 properties nearby
Recent sales nearby
3 recorded sales in this ZIP, last 8 years
Address Sale price Sold Size
3430 Pacheco, Martinez, CA 94553-2125 $1,900,000 Jan 2025 4,000 SF
5988 Pacheco, Pacheco, CA 94553-5608 $4,100,000 Dec 2022 17,905 SF
3765 Pacheco, Martinez, CA 94553-2130 $2,050,000 Jan 2022 2,160 SF
Sale prices and dates as our records hold them, one row per building. A deed can cover more of a building than the size shown, so read the price against the size rather than dividing one by the other.
Comparable nearby
6 properties of the same type nearby
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Rey answers here. ChatGPT, Grok and Claude get the same data packet.

Includes: Price & PSF · Cap rate · Location · Zoning

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