323 UNION ST
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Location
323 UNION ST
Mblu
0134/ 0002/ 0000/ /
Acct#
33957
Owner
SYLLA WILLIAM K & MONICA A
PBN
Total Market Value
$1,059,600
Appraisal
$1,059,600
PID
33957
Building Count
1
Current Value
Appraisal
Valuation YearImprovementsLandTotal
2025$380,100$679,500$1,059,600
Assessment
Valuation YearImprovementsLandTotal
2025$380,100$679,500$1,059,600

Owner of Record
OwnerSYLLA WILLIAM K & MONICA A
Co-OwnerTOD/SYLLA LYDIA A
Address323 UNION ST

PORTSMOUTH, NH 03801
Sale Price$0
Certificate
Book & Page 6681/1307
Sale Date02/02/2026
Instrument

Ownership History
Ownership History
OwnerSale PriceCertificateBook & PageInstrumentSale Date
SYLLA WILLIAM K & MONICA A$0 6681/1307 02/02/2026
SYLLA WILLIAM K$325,000 3604/2067006/29/2001

Building Information
Building 1 : Section 1
Year Built: 1850
Living Area: 2,110
Replacement Cost: $594,781
Building Percent Good: 59
Replacement Cost
Less Depreciation:
$350,900
Building Attributes
FieldDescription
Style:Conventional
ModelResidential
Grade:B-
Stories:2
Occupancy1
Exterior Wall 1Aluminum Sidng
Exterior Wall 2 
Roof Structure:Gable/Hip
Roof CoverAsph/F Gls/Cmp
Interior Wall 1Plastered
Interior Wall 2Drywall/Sheet
Interior Flr 1Hardwood
Interior Flr 2Ceram Clay Til
Heat FuelGas
Heat Type:Hot Water
AC Type:None
Total Bedrooms:2 Bedrooms
Total Bthrms:1
Total Half Baths:1
Total Xtra Fixtrs:1
Total Rooms:7
Bath Style:Below Avg Qual
Kitchen Style:Below Avg Qual
Kitchen Gr 
WB Fireplaces1
Extra Openings0
Metal Fireplaces0
Extra Openings 20
Bsmt Garage 
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 1,144 1,144
FUSUpper Story, Finished 966 966
UBMBasement, Unfinished 1,006 0
   3,116 2,110

Extra Features
Extra Features
CodeDescriptionSizeValueBldg #
A/CAIR CONDITION1400.00 S.F$9,9001

Land
Land Use
Use Code1010
DescriptionSINGLE FAM MDL-01  
ZoneGRA
Neighborhood103B
Alt Land ApprNo
Category
Land Line Valuation
Size (Acres)0.23
Frontage
Depth
Total Market Land$679,500
Appraised Value$679,500

Outbuildings
Outbuildings
CodeDescriptionSub CodeSub DescriptionSizeValueBldg #
BRN31 STORY W/LOFT  384.00 S.F.$8,8001
LNTLEAN-TO  384.00 S.F.$1,0001
FGR4GAR W/LFT AVE  432.00 S.F$7,6001
FGR1GARAGE-AVE02DETACHED76.00 S.F.$1,9001
Valuation History
Appraisal
Valuation YearImprovementsLandTotal
2025$380,100$679,500$1,059,600
2024$380,100$679,500$1,059,600
2023$212,400$404,500$616,900

Assessment
Valuation YearImprovementsLandTotal
2025$380,100$679,500$1,059,600
2024$380,100$679,500$1,059,600
2023$212,400$404,500$616,900

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