421 March Ave, Healdsburg, CA 95448 Property Records

Sonoma County property record for 421 March Ave, Healdsburg, CA 95448

Property Summary

Property Type	Condominium Offices
Details	1,200 sqft · built 1974
Lot Size	0.028 acres (1,200 sqft)
Owner	Company Name on Record
Last Sale	$360,000 (Jun 2015)
Tax Bill	$5,214 (2025)
Flood Zone	Zone X (minimal risk)
APN	`002-800-018-000`

Property Details

APN / Parcel Number

Primary APN	`002-800-018-000`
Alternative APN	`002-800-018`

Interior

Stories	1 Story
Building Area	1,200 sqft Gross Area
1st Floor Area	1,200 sqft

Exterior

Year Built	Built 1974
Effective Year Built	Effective 1974
Architectural Style	Custom Design
Construction Type	Wood
Fire Resistance	Wood or Wood & Steel Frame
Lot Area	1,200 sqft (0.028 acres)

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Central

Location & Zoning

Old Parcel Number	002-800-018
Street Address	421 MARCH AVE
City	HEALDSBURG
State	CA
Zip	95448-3367
Property Category	Commercial
Property Type	Commercial > Office > Condominium Offices
Local Zoning Code	MPUD
Legal Description	HEALDSBURG MEDICAL PLAZA CONDO LOT 18
Legal Subdivision	HEALDSBURG
Legal Block	4
Legal Lot Number	18
Jurisdiction	SONOMA CA
Township / Civil Division	HEALDSBURG
Census Block Group	4
Census Block	4000
Census Tract	153902

Owner

Source: Sonoma County records, as of April 13, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Company Name on Record
Mailing Address	4020 OLD BARN RD, HEALDSBURG, CA 95448-9624
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 1, 2015 · Amount on Record
Deed Sale	Jun 1, 2015 · Amount on Record
Prior Sale	Feb 13, 1997 · Amount on Record
Deed Document Number	201547213
Record Updated	Jun 8, 2026

Tax Assessment & Valuation

Source: Sonoma County assessment roll, as of April 13, 2026

Property Jurisdictions

Type	Name
State	California
County	Sonoma County
Municipality	Healdsburg City
Unified School District	Healdsburg Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2025	$5,214.00 (+5.04%)	$432,655 (+4.04%) Land $90,133 Building $342,522
2023	$4,964.00 (+1.08%)	$415,856 Land $86,634 Building $329,222
2022	$4,911.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective February 15, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	1 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 64% of the US · lower than 78% of California
Wildfire Likelihood	0.04% annual chance
Exposure	Indirect within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	CITY OF HEALDSBURG serves 10,972 people · EPA ID CA4910005
Water Source	Groundwater influenced by surface water
Lead	Under 1 ppb (2021–2023) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 334 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Sonic Telecom Fiber	10,000 / 10,000
Xfinity Cable	1,200 / 35
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20