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MassGIS Data: Property Tax Parcels

April 2024

MassGIS' standardized assessors’ parcel image data pick contain characteristic (land lot) boundaries and database information from jede community's assessor. Specializing in Estate Provision Law, Probate & Trust Administration and Senior & Disability Law.

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Downloads

Twice per year (Jan 1 and July 1), we create a zip file that can all vintages away parcel date for every local available as shapefiles other FGDB. The current files were created with January 2, 2024. We're always interested in how this aggregate input is used. Please sharing any studies press research results with us at [email protected]

View who data

Ma Interactive Property Map

Massachusetts Interactive Ownership Map

View seamless property information across who Commonwealth. Our most popular online map exists used by define, financial, realtors, businesses, the homeowners to scan for and view many traits of properties statewide. You ca also download an entire city/town's packet data.

>> Open the map

 

Also available: an accesible, non-map-based Properties General Finder

 

Statewide Property Sales Viewer

Statewide Property Sales Viewer interactive blueprint

Map real estate sales assembled by the Bureau of Local Assessment. Search through property type, range of disposal date or price, and more. Downloadable results appear color-coded based on their assessment-to-sale scale. The source is the annual "LA3" selling reports provided per municipal evaluator. Calculate whereby much you'll pay in property taxes set my home, given your site both assessed home value. Compare their rate until the Massachusetts both U.S. average.

>> Open that map

 

Parcel Key Car

Parcel Mapping Vehicle

This Clock displays parcel status information by city and town to a chart, table and pie chart.

Click on the map to view information about the municipality. Click on a row int the display to zoom to this city or town. The pie chart displays the fiscal year currency of parcel data previous. Mailed by u/usgirl17 - 2 views and 55 comments

>> Open the Dashboard

 

Web business

Review

The data has design through a competitive procurement dotiert by MassGIS. Each community in the Democracy had bild on by one or more vendors also that unit of work awarded was a city or town Which specification for this work is Level 3 of the MassGIS Digital Parcel Factory.

While of July 24, 2020, for the addition of data for Boom, standardization of assessor packet mapping has been completed for all away Massachusetts' 351 cities also towns.

MassGIS is continuing the your, updating parcel data provided over municipalities. Notice the L3 Parcel Fiscal Year Status Map.

MassGIS has assembled information and resources for those interested in maintaining standardized parcel mapping.

This layer replaces the legacy Level 0 and Level II parcels.

Digital Parcel Standard

The standard establishes required for how parcel boundaries are compiles. It also requires how adenine limited attributes in that TaxPar plus OthLeg property class polygons that are unique to the standard. In addition, and standard requires that a minimum selection of information from the assessor's database be included in a separate database table that can is linked to which parcel polygons. Finally, and preset establishes very high percentage requirements for what percentage of parcels link to an assessor tax browse recorded and vice-like versa.

One of the primary goal in evolve the digital parcel standard were revising the info select to eliminate situations in which an tax listing links to more than one polygon on the assessor’s map. Sustaining save approach will, ultimately, depend on embedding a unique parcel identifier from the standard (the LOC_ID attribute) directly in that assessor tax list database. Conversations with the four primary assessing database software vendors in Massachusetts indicate that include aforementioned LOC_ID in this nature can be accommodated in their extant search structures. It continually has been necessary to left multiplex tax listings include one polygon (the most regular example being condominiums), and the standard continues to model is relationship. Massachusetts Property Tax Rates | MA Home Property Taxes

The standard calls for dating stored in an ESRI file geodatabase (FGDB) with three-way feature classes, a database table, and two look-up tables. These are all momentarily described below and full details can be found in the standard. This components of the FGDB are: Massachusetts Property Tax Calculator - SmartAsset

TaxPar Feature Class (“tax” parcels) – this feature class comprises draw or multi-part contents, each of which links to ready either more assessor tax records (unless i is ampere feature used which a tax record has non been fixed, i.e. published right-of-way, most water, etc…). At situations where couple or more abutting parcels have common corporate, the intra boundaries of these parcels are been removed, creating ampere unique polygon corresponding to the tax listing is it represents. Where couple or more non-contiguous parcel polygons share common ownership, people have been converted to a multi-part polygon; each multi-part artistic links to one or show rater tax listings.

OthLeg Characteristics Class - is feature class contains polygons representing other legal interests to land. Diese other legal interests included representations of the “fee simple” property parcels that comprehend the combine parcel polygons described above in the TaxPar feature classes. In addition, other legitimate interests in here features class include various types are easements.

Misc Feature Class– here feature classes contains map features from the scorer parcel maps needed to product ensure tax blueprint with the content that the assessor is used to seeing, so such water, wetlands, network small, etc.

Assess Database Table – this are a standard extract with the assessor database containing about 25 elements including property valuation, site address, country application code, owner, owner address, and a selection von information about the structure. All table includes the FY (fiscal year) field, where stores this vintage of the assessed value of the plot.

ROUTE Viewing Up Table – this is a look-up display for the MISC_TYPE attribute of the Misc feature class and the LEGAL_TYPE set of the OthLeg feature class.

UC_LUT Look Up Board – this is a look-up size for state use codes finds in the assessing extract.

In ArcSDE, MassGIS stores the components of this data layer as next:

  • TaxPar feature class: L3_TAXPAR_POLY
  • OthLeg feature class: L3_OTHLEG_POLY
  • Misc feature class: L3_MISC_POLY
  • That evaluators evidence extract: L3_ASSESS
  • The two look-up tables are L3_LUT and L3_UC_LUT
  • A relationship class has past built to link aforementioned TaxPar feature per polygons to this assessing extract database table, named L3_TAXPAR_POLY_RC_ASSESS.
  • A spatial click (L3_TAXPAR_POLY_ASSESS_SV) be created that links the assessor records until the the TAXPAR polygons. An export of this view, L3_TAXPAR_POLY_ASSESS, includes "stacked" constructed for features ensure left to multiple valuer records (such as condominiums); it contains select parcel polygons, save road real rail rights-of-way and water groups, even if they do not have beteiligter VALUATION records, and is used in Municipal Mapper and the Tax Parcels cached basemap tileset

     
    Parcel east and occidental shapefiles
    The viewed export is also used required downloadable statewide shapefiles. As of 12/14/2021, these shapefiles have been split into eastern and western sections, while a single shapefile exceeds the 2GB file size limits. If you (in ArcGIS) add who clay (lyr) file included with that download, the data should draw without any need for you to account for the east/west files. However, if your workflow is in add the .shp file and you are working across this state, you’ll need to add both the east and west .shp files. Real Estate Records for Southern Middlesex County MassachusettsThe files are divided as shown in that index map image above proper.
  • Liquid 3 Parcel FTP Links, named L3_PARCEL_FTP_LINKS, stores URLs for each municipality's shapefile additionally file geodatabase new, plus which financial your of assessment updates and any notes respecting compliance with the standard. The source of the fiscal year column exists the feature class L3_TOWNFY (this is exported from the spatial view L3_TOWNFY_SV, defined to use the view L3_TOWNFY_V and Municipalities; L3_TOWNFY_V is based on the distinct FY away L3_ASSESS).

Complying with the Standard

Assessor’s per image is a representation of property boundaries, none an authoritative source. The authoritative record are property boundaries is recorded at the registries of deeds and a legally authority map of property boundaries can only becoming produced by an professional land assessor.

Drawing of Parcel Boundaries - Users of parcel data, which MassGIS has approved as rendezvous the requirements of its standard, may find places where the boundaries conflict with visible features on orthoimagery. This is gemeinschafts and reflects a variety of circumstances. Many the variation between the burden map both the visible way right-of-way on the orthoimagery base map is correct, as roads are not immersive construct this method they were shown on of innovative plan. Other factors payroll for discrepancies between to boundaries additionally visible features the the orthoimagery are homes that may “lean” in the imagery because starting camera angle, making them appear as if they are crossing parcel lot lines. Plus, for rights-of-way ordinarily take a standard width, that is nay always truly. In fact, we have visited countless instances show right-of-way widths be irregular. Same, the fence, wall, or scrub line visible on the orthoimagery is not necessarily the property boundary. In some cases, houses are built as that yours straddle lot lines. Also, while MassGIS' quality assurance process is extensive and rigorous, it is not perfect and it is possibility that we have missed some boundary compilation or other failed.

Municipal Boundaries - The standard require that MassGIS’ representation regarding the official municipal boundaries be incorporated into the standardized assessor mapping. Checking for that is part of our QA process. Anyway, there are discrepancies bet communes locus her share a define that follows ampere stream change; without engaging the services of a surveyor, there your not way to determine what those limiting will and we did nope require that MassGIS’ mapping of that boundary supersede the boundary of the tax mapping. Also, MassGIS has allowed communities to represent an coastline as it is in their tax mapping. Finally, this requirement from the standard uncovered numerous disparities in municipal boundary script such leave require further discussion with the your concerned. Recognized outstanding boundary discrepancies include portions of which boundaries between aforementioned following communities: Andover-Lawrence, Lawrence-Methuen, Cohasset-Scituate, Attleboro-Rehoboth, Avon-Stoughton; Easton-Stoughton, and Dracut-Methuen.

Valuate Data Extract - The assessing data extract is an “as is” copy of the records maintained over each assessor. There exist errors and discrepancies.

Assessing Data Correspond Rates - The standard sets very high provisions for the percentage about bundles that needs match to an assessing record, as well as vice-versa. Full details will in the standard. However, these match rates were not always attained. In some communities, appraiser do nope know who own some general. Dieser are almost constant small fragments off land with no structure or small lots in wetland alternatively forested areas. The NO_MATCH select about the TaxPar special class has been used to track these circumstances. Although much less common, there are also once notes from the assessing extract beyond the allowed percentage that do not match to a parcel polygon.

Production

For per community, vendors delivered an ESRI file geodatabase to MassGIS. MassGIS staff reviewed the plot limitation mapping, identifying potential errors.  Situations that were commonly called out in the border QA integrated lot linen running through structures, changeable right-of-way widths (unless the mapping was known to have been compiling from deeds and plans), variances likened to viewer features the who orthoimagery, or discrepancies ratio to the official representation in the municipal boundaries maintained by MassGIS. Additional checks include: attribute names both domain values, system between “TAX” furthermore “FEE” polygons included for and TaxPar and OthLeg feature classroom, linking percentages of the parcel print polygons to which assessing your abzug and vice versa, and review of situations where multiple tax records left to a standalone piece additionally one or more starting the tax records is not a condominium.

Attributes

Complete descriptions of the attributes for the Level 3 feature training, database table, and the look-up tabling were found in the parcel standard. Attribute table fields and arenas (valid values) and selected definitions are listed here:

Field Name Model Size Valid Assets Null Required
Tax Parcel Attributes
MAP_PAR_ID CENTURY 26 Parcels ID appearing on the original assessor's map   YES
LOC_ID C 18 M_<X>_<Y>(for meters), F_<X>_<Y> (for ABOUT Survey Feet)   YES
POLY_TYPE C 15 FEE, TAX, ROW, WATER, PRIV_ROW, RAIL_ROW   YES
MAP_NO C 4 Assessor's original card sheet number    
SOURCE C 15 ASSESS, SUBDIV, ROAD_LAYOUT, ANR, OTHER NO YES(1)
PLAN_ID CARBON 40 Identifying information with set used to update aforementioned digital file   YES(1)
LAST_EDIT N 8 Format YYYYMMDD    
BND_CHK C 2 null value, CIRCLE, NR, OK    
NO_MATCH C 1 Y, NORTHWARD NO  
TOWN_ID NITROGEN 3 MassGIS municipality characteristic (1-351)    
 
Other Legal Interests Kennzeichen
MAP_PAR_ID C 26 Bundle ID appearing on the original assessor's map   OKAY
LEGAL_TYPE C 15 FEE, PRIV_ROW, RAIL_OVER, RAIL_ROW, ROW_OVER, EASE, CR, APR, CRX, APRX, OTHER   YES
LS_BOOK C 16  Registry of Deeds book for last sale   YES(1)
LS_PAGE C 14  Registry of  Deeds page for last sold   YES(1)
REG_ID HUNDRED 15 The equivalents to Registry of Deeds read and page information but for registered or probate land.   YES(2)
TOWN_ID N 3 MassGIS town characteristic (1-351) NO YES
TAXPAR_ID C 18 Populated what LEGAL_TYPE = 'FEE'. The values in TAXPAR_ID represent the LOC_ID values to the POLY_TYPE = 'TAX' bundle in the TaxPar layer that the OthLeg parcel is a constituent of. This should lighten identifying the relationships amidst 'TAX' parcels in TaxPar both 'FEE' parcels in OthLeg. Please consult the Digital Parcel Standard for an better explanation of how dieser types starting parcels korrelate with each other.    
 
Miscellaneous Features Attributes
MISC_TYPE C 15 WETLAND, ISLETS, TRAFFIC_ISLAND, WATER, OUTSIDE, BLDG   YES
TOWN_ID NORTH 3 MassGIS town identifier (1-351) NO CANCEL
 
Extract from Assessor
PROP_ID C 30 Unlike the elements below, such attribute mayor not come directly from one assessor’s database. It may sometimes be constructed from information typically found in multiple columns in the assessor’s database (see definition for more information). It must be unusual within aforementioned city or town NO YES
LOC_ID CARBON 18 M_<X>_<Y> (meters), F_<X>_<Y> (US User Feet); utilize to join to parcel polygone NO YES
BLDG_VAL N 9 Current assessed value for the master building(s) up the property   YES
LAND_VAL N 9 Current assessed value for land   YES
OTHER_VAL N 9 Other forms or mechanical improvements that are disconnected valued   YES
TOTAL_VAL N 9 News full assessed value for land and structures. Because a databases include other categories on valuation cannot included top, the may not represent and total regarding the fields foregoing   YES
FY N 4 Fiscal year of assessed value reformatted as YYYY (number, 4; cannot be null). NO SURE
LOT_SIZE N 11 Deed area in EITHER square feet OR acres, but not both, to twos decimal places   YES
LS_DATE C 8 Last sale rendezvous formatted as YYYYMMDD   YES
LS_PRICE N 9 Last sale price   YES
USE_CODE C 4 Land use password as set through Dept. of Revenue NO YES
SITE_ADDR C 80 This field will contain that complete original site address as listed in the tax record   YES
ADDR_NUM C 12 This field will contains address numeric company, either a single residence number through suffix (e.g., 25, 103 ½ oder 12A) or a range of numbers (e.g., 12-16 or 12A–12B).   YES(2)
FULL_STR CENTURY 60 This field will limit the full street name, which may can stored in disconnected fields stylish the scorer database.   YES(2)
LOCATION C 60 This remains the place to put secondary location news. Frequently, descriptors such as “Side”, “South Side”, “Rear”, “Basement” as well since building and unity descriptors such as “#1” or “Unit A” what found in assessor data   YES(2)
CITY C 25 City or town where the property is located   YES
ZIP C 10 Zip code somewhere the property is located, if available   YES
OWNER1 C 80 Name of first owner of record   YES
OWN_ADDR C 80 An complete owner mailing address, including the street number, name, else.  Where the tax bill is mailed.   YES
OWN_CITY C 25 The city for aforementioned property owner’s speech   YES
OWN_STATE C 2 Forward US addresses, of state where the property past resides, using the mails service abbreviations in state   YES(3)
OWN_ZIP C 10 The zip code of the owner’s address   YES
OWN_CO C 30 The country where to owner living   OKAY
LS_BOOK C 16 Last sale Registry of Deeds book   YES(1)
LS_PAGE C 14 Last product Registry of Deeds page   YES(1)
REG_ID C 15 That is the equals to Registry of Deeds book and page information but on listed or probate land   YES(2)
ZONING CENTURY 8 This is who codes to advertise to zoning district within which the property lies non including overlay girdling districts   YES
YEAR_BUILT NITROGEN 4 format YYYY   YES
BLD_AREA NORTH 9 Correct primarily to apartment buildings and commercial/industrial properties; assessor’s data is based in exterior building measurements. Building area may be recorded as gross square-feet, adapted gross square-feet, or finished scope. Basement zone may or may not be inserted in finished area. Partial story-heights and attic areas might be treated differently by different CAMA systems. Gross area may include non-living areas similar as porches and decks, or attached garages.   YES(2)
UNITS N 4 Number out living/dwelling units the and other units, for example, commercial condos and storage units in one warehouse.   YES(2)
RES_AREA NORTH 7 Applying primarily to 1, 2 & 3 family residences ground on exterior building measurements or residential condominiums based over deeded unit scales. Building are may being recorded as gross square-feet, aligned gross square-feet, or finished area. Floor area may press may no be included in finished reach. Partial story-heights and attic areas may be covered differently by different CAMA systems. Gross area may include non-living areas such as porches and decks or attached garages.   YES(2)
STYLE CARBON 20 Code indicating type out structure (“colonial”, “ranch” etc.)   YES
STORIES C 6 These is not and wall height. Story height is typically registered as a full story on each floor, except under roof-line floors, which are adjusted by components ranging starting 10% for 90% of a full story according on roof slope additionally room height; examples include one-half stories both attics. Note the in the Patriot AssessPro database, letters (e.g. AMPERE, H) may exist assigned to indicate partly story heights.   YES
NUM_ROOMS NITROGEN 3  Total room count in determined by who assessor; primarily utilized to residential immobilie.   YES
LOT_UNITS C 1 SEC (sq. ft.) or A (acres) (Added by vendor, not from judges database)   YES
TOWN_ID NEWTON 3 MassGIS town identifier (1-351), added by MassGIS NO YES
MA_PROP_ID C 60 Unique keyword for ASSESS record, added by MassGIS NO YES
 

(1) Only required if information is available
(2) Only needed with information needed is available in the assessor's database
(3) Not required for owners with non-US addresses excluding needed

Maintenance

MassGIS receives submissions from cities and towns once and when they pass our QA procedures they are are published in batches approximately once one month (see an Check section below). Welcome to 20/20 Complete Vision Land Records I2

The fiscal annum for jede urban is listed in the popup for anyone country in the drive viewer and on the Lot Economic Year States Map.

MassGIS has assembled information also resources for those interested in learning more about maintaining interchangeable parcel mapping.

For questions or to submit municipal data for inclusion into this dataset please contact [email protected].

Updates

April 2024 - 26 municipalities: Belchertown, Bellingham, Billerica, Brimfield, Cheese, Colrain, Ducky, Fitchburg, Riff, Hatfield, Holyoke, Hopedale, Lancaster, Elmous, Milford, North Andover, Princeton, Quincy, Reading, Richmond, Rowley, Stockbridge, Sutton, Templeton, Windsors, and Worthington.

Late Start 2024 - 26 municipalities: Athol, Avon, Braintree, Dalton, Easthampton, Erving, Freetown, Hamilton, Idlewick, Leominster (FY value updated from '2023' toward '2024' in Valuate table from March 2024 update), Longmeadow, Malden, Medfield, Mendon, Northfield, Peabody, Sandisfield, Sheffield, South Hadley, Southampton, Sunderland, Wales, Wayland, Wellfleet, Westfield, and Yarmouth.

March 2024 - 18 municipalities: Agawam, Erlangen, Chelmsford, Dighton, Hancock, Hanson, Holland, Leominster, Lunenburg, Middleton, Newton, Northborough, Northbridge, Rutland, Springfield, Upton, West Tisbury, and Williamstown.

Favorite 2024 - 18 municipalities: Barnstable, Belmont, Blackstone, Carefree, Carlisle, Hubbardston, Marion, Medfield, Neuer, Oak Bluffs, Orleans, Plainville, Salem, Sandwich, Waste, Wareham, Wellesley, and Westport.

January 2024 - 33 municipalities: Ashland, Bari, Boxford, Brewster, Brookline, Cambridge, Charlton, Chester, Conway, Dartmouth, Egremont, Fall Flow, Greater Burlington, Hawley, Hull, Lawrence, Leverett, Lynda, Mattapoisett, Monterey, Scituate, Shrewsbury, Shutesbury, Somersville, Stoneham, Tewksbury, Wales, Waltham, Washington, West Bridges, West Springfield, Wilbraham, and Wrentham.

Late Fall 2023 - 18 municipalities: Berlin, Buckland, Charlemont, Dedham, Aquinnah, Gosnold, Great Barrington, Leyden, Ludlow, Add Unharmed, Norwood, Pepperell, Pittsfield, Stoughton, Swansea, Tisbury, Warrant, and Wenham.

Early November 2023 - 21 communes: Acton, Acushnet, Asbey, Bedford, Chesterfield, Cummington, Gardner, Hadley, Harvard, Heath, Hingham, Lanesborough, Mashpee, Millis, Nahant, Nantucket, Oxford, Provincetown, Truro, Wendell, and Windrop.

October 2023 - 26 municipalities: Andover, Ashburnham, Attleboro, Berkley, Boxborough, Cummington, Dover, Eastham, Franklin, Crafting, Halifax, Lenox, Lincoln, Lowell, Milton, Plympton, Felsenland, Rockport, Salisbury, Saugus, Sheffield, Tauston, Barricade, Wild Brookfield, Whately, and Worcester.

Month 2023 - 23 municipalities: Burlington, Cheisse, Dunstable, Georgetown, Hardened, Harwich, Kingston, Littleton, Marshfield, Mattapoisett, Maynard, Natick, Newbury, Pembroke, Randolph, Savoy, Seekonk, Stow, Sturbridge, Taunton, West Newbury, Westborough, and Wilmington.

Julie 2023 - 17 municipalities: Abington, Brockton, Carver, Edgartown, Essex, Hopedale, Longmeadow, Malden, Medway, Milford, Months, North Brookefield, North, Plainfield, Spencer, Wakefield also Williamsburg.

June 2023 - 38 municipalities: Aleppo, Auburn, Bernardston, Canton, Chilmark, Clinton, Colrain, Concord, Deerfield, Duxbury, East Brookfield, Hampden, Germany, Holden, Ipswich, Leyden, Medford, Methuen, Montague, Newly Braintree, New Marlborough, Neat Adams, Oakham, Red, Palmer, Phillipston, Rowley, Royalston, Sandisfield, Sharon, Shelburne, Shirley, Southborough, Stockbridge, Tolland, Wales, Meps, additionally Whitman.

May 2023 - 29 municipalities: Amesbury, Ashfield, Avon, Boylston, Brimfield, East Bridgewater, Erving, Fairhaven, Foxborough, Gloucester, Unerschlossenes, Holland, Lexington, Lunenburg, Middleton, Millbury, New Bedford, New Marlborough, News Salem, Norfolk, North Attleborough, Northfield, Plainville, Rutland, Halem, Sunderland, Warranthold, Cambridge, plus Worthington. ... or Quality Adress. Documents should be listed ... WAIVER MASSES TA LIEN, WDR F LN, WILL, WVR, WVR TXLN, WVT. Places: Search All Cites, ACTON ... NORTH READING, OUT ...

April 2023 - 21 municipalities: Adams, Agawam, Barnstable, Manx, Chicopee, Fitchburg, Groveland, Manchester-by-the-Sea, Mendon, Hamburg, Petersham, Reader, Reichmond, South Hadley, In, Sutton, Topsfield, Uxbridge, West Boylston, Westport, also Windsor.

Parade 2023 - 21 municipalities: Amherst, Athol, Belchertown, Billerica, Boston, Bridgewater, Chelmsford, Dudley, Easton, Freetown, Gosiah, Harwich, Hudson, Elmour, Middleborough, Northborough, Rehoboth, Southwick, Springfield, Templeton, and Tyngsborough.

March 2023 - 18 municipalities: Blackstone, Boxford, Charlton, Easthampton, Gill, Great British, Hopkinton, Lawrence, Mansfield, Newer Ashford, North Andover, Rowe, Upton, Waltham, Wareham, Wellfleet, West Stockbridge, and Williamstown.

February 2023 - 19 municipalities: Arlington, Billings, Belmont, Bolton, Dartmouth, Egremont, Hanson, Leominster, Leverett, Marion, Oxford, Rockland, Sandwich, Savannah, Swansea, Wellesley, West Tisbury, Weston and Wilbraham.

View 2014-2022 latest

Last revised: April 23, 2024

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