20 Old Onset Rd, Onset, MA 02558 Property Records

Plymouth County and Wareham Town property record for 20 Old Onset Rd, Onset, MA 02558

Property Summary

Property Type	Duplex
Details	6 bd · 4 ba · 3,248 sqft · built 1935
Lot Size	0.499 acres (21,755 sqft)
Owner	Company Name on File
Tax Bill	$4,225 (2026)
Deeds & Mortgages	May 2023 Sale May 2023 Sale + 2 more
Flood Zone	Zone X (minimal risk)
APN	`WARE M:00013 B:000 L:01005`

Property Details

APN / Parcel Number

Primary APN	`WARE M:00013 B:000 L:01005`
Alternative APN	`WRHM M:00013 B:000 L:01005`

Interior

Bedrooms	6 Beds
Full Baths	4 Baths
Total Rooms	12 Rooms
Units	2 Units
Stories	2 Stories
Building Area	3,248 sqft Living Area
Gross Area	5,892 sqft
Basement Area	1,624 sqft
Unfinished Basement	1,624 sqft

Exterior

Year Built	Built 1935
Effective Year Built	Effective 1935
Architectural Style	Duplex Single
Exterior Material	Wood Siding
Roof Type	Gable
Roof Material	Asphalt
Lot Area	21,755 sqft (0.499 acres)

Utilities, Heating & Cooling

Heating System	Forced Air with A/C
Heating Fuel	Gas

Location & Zoning

Street Address	20 OLD ONSET RD
City	ONSET
State	MA
Zip	02558-1946
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	MR30
Legal Lot Number	1005
Jurisdiction	WAREHAM MA
Township / Civil Division	WAREHAM
Census Block Group	1
Census Block	1003
Census Tract	545300

Owner

20 Old Onset Rd, a duplex, is owned by a company that acquired it in August 2021.

Source: Plymouth County and Wareham Town records, as of October 20, 2026

Owner of Record	Company Name on File
Mailing Address	422 ROUTE 130, SANDWICH, MA 02563-2342
Owner Type	Company
Vesting	Company

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
May 5, 2023	Deed, Transfer
May 5, 2023	Deed, Transfer
Sep 24, 2021	Quit Claim Deed, Transfer Quitclaim
Jun 1, 2021	Quit Claim Deed, Transfer Quitclaim

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 13, 2010
Deed Sale	May 13, 2010
Prior Sale	May 13, 2010
Deed Book / Page	38521 / 136
Last Transfer Date	Aug 25, 2021
Transfer Doc	055716-109
Record Updated	Oct 29, 2026

May 2023: Deed, Transfer

Document Type	Deed
Jurisdiction	WAREHAM MA
Recording Date	May 5, 2023
Property Address	20 OLD ONSET RD, ONSET, MA 02558-1946
Document Number	057885-188
Book / Page	57885 / 188
Instrument Date	Apr 27, 2023
Instrument	27352
Transaction Type	Transfer
Record Updated	Oct 30, 2025

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	422 ROUTE 130, SANDWICH, MA 02563-2342

May 2023: Deed, Transfer

Document Type	Deed
Jurisdiction	WAREHAM MA
Recording Date	May 5, 2023
Property Address	20 OLD ONSET RD, ONSET, MA 02558-1946
Document Number	0057885-65
Book / Page	57885 / 65
Instrument Date	Apr 21, 2023
Instrument	27315
Transaction Type	Transfer
Record Updated	Oct 30, 2025

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	42 WATER ST, SANDWICH, MA 02563-2310

September 2021: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	WAREHAM MA
Recording Date	Sep 24, 2021
Property Address	20 OLD ONSET RD, ONSET, MA 02558-1946
Document Number	055716-109
Book / Page	55716 / 109
Instrument Date	Aug 25, 2021
Instrument	108465
Transaction Type	Transfer
Record Updated	Oct 30, 2025

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1016 E CANON PERDIDO ST APT C, C, SANTA BARBARA, CA 93103-2456

June 2021: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	WAREHAM MA
Recording Date	Jun 1, 2021
Property Address	20 OLD ONSET RD, ONSET, MA 02558-1946
Document Number	055072-211
Book / Page	55072 / 211
Instrument Date	May 22, 2021
Instrument	62883
Transaction Type	Transfer
Record Updated	Oct 30, 2025

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1016 E CANON PERDIDO ST APT C, C, SANTA BARBARA, CA 93103-2456

Tax Assessment & Valuation

The 2026 property tax bill for 20 Old Onset Rd was $4,225, down 22% from the year before.

Source: Plymouth County and Wareham Town assessment roll, as of April 14, 2026

Property Jurisdictions

Type	Name
State	Massachusetts
County	Plymouth County
County Subdivision	Wareham Town
Unified School District	Wareham School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$4,225.00 (-22.05%)	$493,600 (-) Land $109,900 Building $383,700	$592,366
2025	$5,420.00 (-1.31%)	$493,600 (+4.98%) Land $109,900 Building $383,700
2024	$5,492.00 (+8.26%)	$470,200 (+14.02%) Land $87,500 Building $382,700
2023	$5,073.00	$412,400 Land $79,500 Building $332,900

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 20 Old Onset Rd in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

Source: FEMA National Flood Hazard Layer, effective June 11, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 78 policies
Nearby Flood Policies	78 in force
Nearby Flood Claims	99 (1978–2023)
Claims Outside the SFHA	11 of 99
Most Recent Claim	Dec 2023 · rainfall accumulation
Claims by Event	Severe Storms And Flooding, Apr 2010 · 4 claims Winter Coastal Storm, Dec 1992 · 3 claims Hurricane Bob, Aug 1991 · 56 claims

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

Wildfire risk around 20 Old Onset Rd is low, with a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 80% of the US · above 57% of Massachusetts
Wildfire Likelihood	0.01% annual chance
Exposure	None beyond 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	ONSET FIRE DISTRICTWATER DEPT. serves 5,392 people · EPA ID MA4310003
Water Source	Groundwater
Last State Inspection	Mar 2026
Lead	3 ppb (2021–2023) action level 15 ppb

Violations Reported to EPA

Water Quality	E. coli resolved · May 2019
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 191 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Verizon Fiber · Fixed Wireless in parts of the area	980 / 880

Cell Coverage

5G (outdoors only) and 4G LTE

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