20 PORTER ST
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Location
20 PORTER ST
Mblu
0117/ 0053/ 0000/ /
Acct#
38367
Owner
KOSTER VIRGINIA W
PBN
Assessment
$1,442,400
Appraisal
$1,442,400
PID
38367
Building Count
1
Current Value
Appraisal
Valuation YearImprovementsLandTotal
2025$833,300$609,100$1,442,400
Assessment
Valuation YearImprovementsLandTotal
2025$833,300$609,100$1,442,400

Owner of Record
OwnerKOSTER VIRGINIA W
Co-Owner
Address20 PORTER ST

PORTSMOUTH, NH 03801
Sale Price$1,389,000
Certificate
Book & Page 6236/1602
Sale Date02/11/2021
Instrument13

Ownership History
Ownership History
OwnerSale PriceCertificateBook & PageInstrumentSale Date
KOSTER VIRGINIA W$1,389,000 6236/16021302/11/2021
HAGERTY FAMILY REALTY TRUST$987,500 5630/17850006/29/2015
TWENTY PORTER STREET REVOC TRUST$762,400 4477/2759005/05/2005

Building Information
Building 1 : Section 1
Year Built: 2003
Living Area: 2,682
Replacement Cost: $917,404
Building Percent Good: 88
Replacement Cost
Less Depreciation:
$807,300
Building Attributes
FieldDescription
Style:Townhouse/Row
ModelResidential
Grade:X-
Stories:3
Occupancy1
Exterior Wall 1Brick/Masonry
Exterior Wall 2 
Roof Structure:Gable/Hip
Roof CoverAsph/F Gls/Cmp
Interior Wall 1Drywall/Sheet
Interior Wall 2 
Interior Flr 1Hardwood
Interior Flr 2Carpet
Heat FuelGas
Heat Type:Warm Air
AC Type:Central
Total Bedrooms:3 Bedrooms
Total Bthrms:2
Total Half Baths:1
Total Xtra Fixtrs:3
Total Rooms:8
Bath Style:Above Avg Qual
Kitchen Style:Above Avg Qual
Kitchen Gr 
WB Fireplaces0
Extra Openings0
Metal Fireplaces0
Extra Openings 20
Bsmt Garage1
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
FUSUpper Story, Finished 1,796 1,796
BASFirst Floor 886 886
FOPPorch, Open 30 0
UBMBasement, Unfinished 850 0
WDKDeck, Wood 84 0
   3,646 2,682

Extra Features
Extra Features
CodeDescriptionSizeValueBldg #
FBLAFINISHED BSMNT370.00 S.F.$26,0001

Land
Land Use
Use Code1010
DescriptionSINGLE FAM MDL-01  
ZoneCD4
Neighborhood102
Alt Land ApprNo
Category
Land Line Valuation
Size (Acres)0.03
Frontage
Depth
Assessed Value$609,100
Appraised Value$609,100

Outbuildings
Outbuildings

No Data for Outbuildings

Valuation History
Appraisal
Valuation YearImprovementsLandTotal
2025$833,300$609,100$1,442,400
2024$833,300$609,100$1,442,400
2023$763,000$356,800$1,119,800

Assessment
Valuation YearImprovementsLandTotal
2025$833,300$609,100$1,442,400
2024$833,300$609,100$1,442,400
2023$763,000$356,800$1,119,800

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