29 NONANTUM AV
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Location
29 NONANTUM AV
Mblu
87/ / 51/ /
Acct#
00008520
Owner
KOBOS KATHERINE H & MICHAEL H TRST
Assessment
$11,508,600
PID
8520
Building Count
2
Current Value
Assessment
Valuation YearImprovementsLandTotal
2026$5,052,900$6,455,700$11,508,600

Owner of Record
OwnerKOBOS KATHERINE H & MICHAEL H TRST
Co-OwnerHOLMES REALTY TRUST
Address29 MATTISON DR
CONCORD , MA 01742
Sale Price$0
Certificate
Book & Page C19867/0
Sale Date05/18/2021
Instrument99

Ownership History
Ownership History
OwnerSale PriceCertificateBook & PageInstrumentSale Date
KOBOS KATHERINE H & MICHAEL H TRST$0 C19867/09905/18/2021
KOBOS MICHAEL H TRST$100 1655/2051J07/18/2018
KOBOS MICHAEL H TRST$0 C19867/09904/02/2013
HOLMES D BRAINERD TRUSTEE$0 C19867/09904/03/2001
HOLMES D BRAINERD & ROBERTA M$0 0165/133 08/01/1978

Building Information
Building 1 : Section 1
Year Built: 1978
Living Area: 1,873
Replacement Cost: $1,355,289
Building Percent Good: 90
Replacement Cost
Less Depreciation:
$1,219,800
Building Attributes
FieldDescription
Style:Ranch
ModelResidential
Grade:Good
Stories:1 Story
Occupancy1
Exterior Wall 1Wood Shingle
Exterior Wall 2 
Roof Structure:Gable/Hip
Roof CoverAsph/F Gls/Cmp
Interior Wall 1Drywall/Sheet
Interior Wall 2 
Interior Flr 1Carpet
Interior Flr 2 
Heat FuelGas
Heat Type:Hot Air-No Duc
AC Type:Central
Total Bedrooms:3 Bedrooms
Total Bthrms:2
Total Half Baths:0
Total Xtra Fixtrs: 
Total Rooms: 
Bath Style:Average
Kitchen Style:Modern
Num Kitchens01
Cndtn 
Num Park 
Fireplaces 
Fndtn Cndtn 
Basement 
Usrfld 706
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 1,873 1,873
ARBArbor 282 0
FOPPorch, Open, Finished 40 0
STPStoop 136 0
UBMBasement, Unfinished 1,873 0
WDKDeck, Wood 482 0
   4,686 1,873
Building 2 : Section 1
Year Built: 2022
Living Area: 3,819
Replacement Cost: $3,788,244
Building Percent Good: 100
Replacement Cost
Less Depreciation:
$3,788,200
Building Attributes : Bldg 2 of 2
FieldDescription
Style:Custom Built
ModelResidential
Grade:Excellent
Stories:2
Occupancy1
Exterior Wall 1Wood Shingle
Exterior Wall 2 
Roof Structure:Gable/Hip
Roof CoverAsph/F Gls/Cmp
Interior Wall 1Drywall/Sheet
Interior Wall 2 
Interior Flr 1Hardwood
Interior Flr 2 
Heat FuelGas
Heat Type:Forced Air-Duc
AC Type:Central
Total Bedrooms:4
Total Bthrms:4
Total Half Baths:1
Total Xtra Fixtrs: 
Total Rooms: 
Bath Style:Luxurious
Kitchen Style:Luxurious
Num Kitchens 
Cndtn 
Num Park 
Fireplaces 
Fndtn Cndtn 
Basement 
Usrfld 706
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
BASFirst Floor 1,618 1,618
FUSUpper Story, Finished 1,222 1,222
FBMBasement, Finished 1,398 979
FOPPorch, Open, Finished 452 0
STPStoop 16 0
UBMBasement, Unfinished 220 0
WDKDeck, Wood 625 0
   5,551 3,819

Extra Features
Extra Features
CodeDescriptionSizeValueBldg #
FPL1FIREPLACE 1 ST1.00 UNITS$7,4001

Land
Land Use
Use Code1093
DescriptionMULTI WF  
ZoneR20
Neighborhood700
Alt Land ApprNo
Category
Land Line Valuation
Size (Acres)1.58
Frontage0
Depth0
Assessed Value$6,455,700

Outbuildings
Outbuildings
CodeDescriptionSub CodeSub DescriptionSizeValueBldg #
FGR1GARAGE-AVE  744.00 S.F.$37,5001
Valuation History
Assessment
Valuation YearImprovementsLandTotal
2026$5,052,900$6,455,700$11,508,600
2025$5,351,900$5,253,300$10,605,200
2024$2,269,300$5,253,300$7,522,600
2023$801,300$5,023,200$5,824,500
2022$599,300$3,276,000$3,875,300

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