25 Union St, Dover, NH 03820 Property Records

Strafford County and Dover City property record for 25 Union St, Dover, NH 03820

Property Summary

Property TypeDuplex
Details4 bd · 2 ba · 1,672 sqft · built 1900
Lot Size0.15 acres (6,534 sqft)
OwnerIndividual Name on File
Last Sale$365,000 (Sep 2021)
Tax Bill$9,372 (2025)
Deeds & MortgagesJul 2024 Line of Credit
Sep 2021 Sale & Mortgage
+ 1 more
Flood ZoneZone X (minimal risk)
APNDOVR M:20099 B:L

Property Details

APN / Parcel Number

Primary APNDOVR M:20099 B:L

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms7 Rooms
Units2 Units
Stories2 Stories
Building Area1,672 sqft Living Area
1st Floor Area696 sqft
AtticAttic
Attic Area696 sqft
Basement Area696 sqft
Unfinished Basement696 sqft

Exterior

Year BuiltBuilt 1900
Effective Year BuiltEffective 1900
Architectural StyleOther
Exterior MaterialAluminum/Vinyl
Lot Area6,534 sqft (0.15 acres)
Deck AreaDeck Area

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemSteam
Heating FuelOil

Location & Zoning

Street Address25 UNION ST
CityDOVER
StateNH
Zip03820-4105
Property CategoryResidential
Property TypeResidential > Multi-Unit > Duplex
Local Zoning CodeRM-U
JurisdictionDOVER CITY NH
Township / Civil DivisionDOVER
Census Block Group2
Census Block2002
Census Tract81300

Owner

25 Union St, a duplex, is owned and occupied by an individual who bought it in September 2021.

Source: Strafford County and Dover City records, as of April 28, 2026

Owner of RecordIndividual Name on File
Mailing Address25 UNION ST, DOVER, NH 03820-4105
OccupancyOwner Occupied
Owner TypeIndividual

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

DateDocument
Jul 3, 2024Deed of Trust, Mortgage · Line of Credit
CITIZENS BANK
Sep 17, 2021Warranty Deed, Transfer · Stand-Alone First Mortgage
NHFA
Sep 17, 2021Warranty Deed, Transfer · Stand-Alone First Mortgage
NHFA

Assessor's Deed Record

Deed NamesName on Deed
Last SaleSep 17, 2021 · Amount on File
Deed SaleSep 17, 2021 · Amount on File
Deed Document Number202118816
Deed Book / Page4955 / 17
Record UpdatedJun 8, 2026

July 2024: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionDOVER CITY NH
Property Address25 UNION ST, DOVER, NH 03820-4105
Transaction TypeMortgage
Record UpdatedApr 9, 2026

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number005195-869
DateJul 3, 2024
Book Page5195/869
Instrument240007825
Lender
NameCITIZENS BANK
TypeBank
Agreement
TypeLine of Credit
AmountAmount on Record
Term301 Months
DueAug 1, 2049
Interest
Rate TypeAdjustable Rate

September 2021: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionDOVER CITY NH
Recording DateSep 17, 2021
Property Address25 UNION ST, DOVER, NH 03820-4105
Document Number4955-17
Book / Page4955 / 17
Instrument DateSep 16, 2021
Instrument210018816
Transaction TypeTransfer
Record UpdatedSep 29, 2021

Transaction

AmountAmount on Record
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address35B SILVER ST, DOVER, NH 03820-3920

Mortgage

Document Number210018817
DateSep 17, 2021
Instrument210018817
Lender
NameNHFA
Agreement
TypeStand-Alone First Mortgage
AmountAmount on Record

September 2021: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionDOVER CITY NH
Recording DateSep 17, 2021
Property Address25 UNION ST, DOVER, NH 03820-4105
Document Number0004955-17
Book / Page4955 / 17
Instrument DateSep 16, 2021
Instrument210018816
Transaction TypeTransfer
Record UpdatedApr 9, 2026

Transaction

AmountAmount on Record
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address35B SILVER ST, DOVER, NH 03820-3920

Mortgage

Document Number0210018817
DateSep 17, 2021
Instrument210018817
Lender
NameNHFA
Agreement
TypeStand-Alone First Mortgage
AmountAmount on Record

Tax Assessment & Valuation

The 2025 property tax bill for 25 Union St was $9,372, up 8.3% from the year before.

Source: Strafford County and Dover City assessment roll, as of April 28, 2026

Property Jurisdictions

TypeName
StateNew Hampshire
CountyStrafford County
MunicipalityDover City
Unified School DistrictDover School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2025$9,372.00 (+8.31%)$476,200 (-) Land $149,400 Building $326,800
2024$8,653.00 (+15.28%)$476,200 (+18.63%) Land $149,400 Building $326,800
2023$7,506.00 (+0.67%)$401,400 (+6.81%) Land $142,000 Building $259,400
2022$7,456.00$375,800 Land $134,500 Building $241,300

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

Flood

FEMA maps place 25 Union St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1996.

Source: FEMA National Flood Hazard Layer, effective April 26, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Claims1 (1996)
Most Recent ClaimOct 1996 · river or lake flooding

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 25 Union St is low, with a 0.01% annual chance of wildfire.

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

Wildfire RiskLow
lower than 80% of the US · above 52% of New Hampshire
Wildfire Likelihood0.01% annual chance
ExposureDirect
burnable vegetation

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 SystemDOVER WATER DEPT
serves 29,000 people · EPA ID NH0651010
Water SourceGroundwater
Last State InspectionOct 2025
Lead1 ppb (2024)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 412 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable
2,000 / 2,000
Breezeline
Fiber · Cable in parts of the area
1,000 / 1,000
Verizon
Fixed Wireless
300 / 20
AT&T
Fixed Wireless
100 / 20

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