City of Newton, MA
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These polygons represent the boundaries of the Assessor’s property parcels. Some attribute information from the Assessor’s Database is added and more information from this and other databases can be linked via each property’s Section, Block and Lot identifier (SBL).
Features and Attributes
There are approximately 24,200 parcel polygons. They follow topology rules to ensure connectivity and prevent overlapping parcels. Additional fields were added to support the MassGIS Standard for Digital Parcels. A more detailed explanation for some of the data fields follows this chart.
| Name | Alias | Description | Data Type | Width |
|---|---|---|---|---|
| MAP_PAR_ID | SBL | Property ID (PIN) | Text | 26 |
| Number | Number | Address Number (numerical) | Long Integer | 10 |
| AddressNum | Address Number | Address Number or Range | Text | 10 |
| Street | Street Name | Name of street property is located on | Text | 20 |
| Owner1 | Current Owner | Current Fee Owner | Text | 35 |
| Land_Use | Land Use | State Land Use code (see appendix B for list) | Text | 4 |
| Zoning | Zoning | Zoning | Text | 3 |
| ***** coded values ***** | ||||
| SR1 | Single Residence 1 | |||
| SR2 | Single Residence 2 | |||
| SR3 | Single Residence 3 | |||
| MR1 | Multi-Residence 1 | |||
| MR2 | Multi-Residence 2 | |||
| MR3 | Multi-Residence 3 | |||
| MR4 | Multi-Residence 4 | |||
| BU1 | Business 1 | |||
| BU2 | Business 2 | |||
| BU4 | Business 4 | |||
| BU5 | Business 5 | |||
| LMD | Limited Manufacturing | |||
| MAN | Manufacturing | |||
| MU1 | Mixed Use 1 | |||
| MU2 | Mixed Use 2 | |||
| MU3 | Mixed Use3 | |||
| MU4 | Mixed Use 4 | |||
| PUB | Public Use | |||
| ORD | Open Space/Recreation | |||
| MRT | Multi-Residence Transit | |||
| VC2 | Village Center 2 | |||
| VC3 | Village Center 3 |
|||
| Lot_Size | Lot Size | Lot Area from deed | Long Integer | 10 |
| Frontage | Frontage | Lot Frontage from deed | Short Integer | 5 |
| Sale_Date1 | Last Sale Date | Most recent sale date | Date | |
| Sale_Price1 | Last Sale Price | Most recent sale price | Long Integer | 10 |
| Legal1 | Last Book & Page | Deed Book Number and Page | Text | 14 |
| Total_Val | Assessed Value | Assessed Value | Long Integer | 10 |
| Year_Built | Year Built | Year primary structure was built | Short Integer | 5 |
| Neighborhd | Residential Neighborhood | Assessor's Residential Neighborhood | Text | 2 |
| Date_Added | Date Created | Date lot was created in GIS | Date | |
| Date_Modif | Date Last Edited | Date Last Edited | Date | |
| Attributes for the Massachusetts Digital Parcel Standard: | ||||
| LOC_ID | Statewide Unique ID | Unique Location ID for Mass. Parcel Standard | Text | 15 |
| POLY_TYPE | Polygon Type | Type of polygon-codes per Mass. Parcel Standard | Text | 15 |
| ***** coded values ***** | ||||
| FEE | Fee Owner Parcel | |||
| TAX | Parcel Dissolved for Billing | |||
| ROW | Right of Way | |||
| PRIV_ROW | Private Right of Way | |||
| RAIL_ROW | Railroad Right of Way | |||
| WATER | Water Body | |||
| MAP_NO | Assessor's Map Number | Map sheet on Assessor's Tax Map Atlas | Text | 4 |
| SOURCE | Source of Boundaries | Source of Boundaries | Text | 15 |
| PLAN_ID | Plan ID Number | Not used | Text | 40 |
| LAST_EDIT | Numerical Edit Date | Date last edited (in numeric format) | Long Integer | 10 |
| BND_CHK | Boundary Discrepency | Not used | Text | 2 |
| NO_MATCH | Exclusion from Parcel Match | Not used | Text | 1 |
The [MAP_PAR_ID] is the unique property identifier (PIN) in form Section-block lot (SBL.) Note that most SBLs have a space between the block and the lot. This space is occasionally filled by a letter extension to the block (e.g. 23023 0004 vs. 23023A0004). There are also a few blank areas from the original Assessors Maps that do not have corresponding IDs or records in the Assessor’s Database. These “dummy” parcels were given IDs with section and block designations of “99” (e.g., Parcel ID 99099 0101) so they are clearly differentiated from the other parcels. Also, some water bodies and land along the Charles River are set up as dummy parcels. Some of those water parcels were eliminated when the data was converted to geodatabase format as they were originally created to support topology needs within Arc/INFO and are no longer necessary in the current data formats. Right of way parcels are also coded in this format as they are not in the Assessor's database.
Address can be taken from the [Number], or [AddressNum] and [Street] fields. For more accurate geocoding, use the Addresses layer. There are two number fields in order to accommodate both address range text descriptors such as 94-96 and numerical querying and sorting.
[Loc_ID] has been added to conform to the Statewide MassGIS Digital Parcel Standard.
This is a concatenation of the X and Y State Plane Coordinates of the parcel’s centroid in the format X_Y (e.g., 736194_2958438)
Last Updated: June, 2023