Level 3 Parcel Data Standard Compliant parcel boundaries for West Tisbury, MA. A 1-M relationship class exists from the parcels to the Assess table and from parcels to the Building table. The building table is an additional table (not part of the Level 3 Standard). Building info was provided by the Town assessor in late early 2020. The building table only provides info for one building on the parcel. Which building (i.e. oldest, newest, etc) is unknown. Use data with caution.

The goal of this web map is to assist with facilitating discussion of town planning initiatives and the town's vision for its future. For the full data details and background about any dataset including source and analysis assumptions, click the respective layer from the Layers list below.On this map, the buildings are displayed in two ways: 1) by type of Use which is either Residential or Non-Residential; 2) by type of Owner - Year-round or Seasonal. Use was determined by the assessor's use code and Owner Type is based on the owner's mailing address zip code. If the zip code is located on Martha's Vineyard, then they are a Year-round resident, otherwise, they are a Season resident.

For planning purposes, this map shows the Right of Way bounds, Scenic Roads, and Overlay Zoning Districts of Special Ways and Major Roads Zone in West Tisbury MA. The Right of Way bounds are per the FY21 Parcel Data compiled by CAI Technologies. The Overlay Zoning Districts are compiled by the Martha's Vineyard Commission. See the data layer's attribute table for details. The Scenic Roads are from the MassGIS/MassDOT centerline road file of 2003. The MVC extracted the respective roads from that dataset in 2005.These data are NOT survey-grade. The data are provided for general planning purposes only.

Overlay zoning districts are in addition to standard town zoning. The districts' boundaries and use limitations &/or development constraints are described in the town's zoning bylaw. The MVC generated these digital spatial boundaries based on the best GIS data available at the time of processing.

Some overlay zoning districts are also Districts of Critical Planning Concern. These are zoning districts established by the Martha'sVineyard Commission and adopted by the town at town meeting.

The boundaries are not survey-grade and are intended for planning purposes only.

Coastal District compiled from various data sources in 2011 by the Martha's Vineyard Commission. This boundary is a GIS digital representation of the boundary and reflects, to the best degree possible, the written description given the Town's zoning bylaws. However, the written description is the legal description and this GIS data is strictly for planning purposes.

The parcel boundaries and info are the most recent available per MassGIS as of June 2019. For the most current assessing info, please contact the Town's Assessing Office.The parcel boundaries and attribute table conform to the State's Level 3 Parcel Data Standard. See MassGIS for full details.

For planning purposes only. The overlay zoning districts within West Tisbury MA and Parcel Boundaries. These data are not survey-grade. Each overlay zoning district is presented as its own data layer - so you can turn on or off each district to have more or less clutter on the map. Please see the Town's zoning bylaws for all regulations.See the data layer's attribute table for a brief explanation of how that layer was compiled by the Martha's Vineyard Commission. The parcel bounds were created by CAI Tech. per MassGIS Level 3 parcel data standard. Parcels are fed into the map from the MassGIS ArcGIS OnLine cloud. They update the hosted parcel data typically once a year. See the FY attribute field for the respective year - last updated.

The designated scenic roads of West Tisbury MA: https://www.westtisbury-ma.gov/bylaws/pages/scenic-roads were extracted from the MassGIS roads centerline data layer of 2003 by the Martha's Vineyard Commission in 2005. Only the attribute fields of Street Name and Miles (per road segment) have been retained.Please also review this document.

In ArcGIS OnLine an active join (one to many) was created between each town's parcel bounds and related assess table. In ArcPro those 6 joined layers were merged together into one feature layer. This file provides faster response time in web apps that permit filtering the data. The properties of the layer are set in such a way that the boundaries will not appear on the map until zoomed in.Please note: Any building related information associated with the parcel may or may not represent ALL buildings on the parcel.All parcel data meets the MassGIS Level 3 Parcel data standard. Each town has a parcel data consultant (either CAI Technologies or CGIS) who compiles their parcel bounds and export assessing data. All users are encouraged to read the 'attribute' section of the MassGIS metadata so there is clear understanding as to what these data represent.

Feature layer generated from running the Join Features solution

In AGOL, an active 1 to Many join was established between the Level 3 parcel bounds and the respective building info table (obtained from each town's assessor). Those hosted feature layer 'views' for each town were merged into one Island-wide feature data layer in ArcPro and then published to ArcGIS OnLine. This permits certain functionality in the Dashboard and requires customizing fewer feature layer pop-ups in ArcGIS OnLine.In cases where there are multiple buildings on a parcel, the 'join' created stacked parcels. Therefore, when clicking on a parcel that has multiple buildings, the info for each building will appear in its own pop-up (and not as a related record associated with the parcel).Note 1: West Tisbury's assessing program, while perfectly suited for town assessing purposes, is unable to export the detailed building info for all buildings on a parcel. Therefore, only info for one building is provided per parcel. As to which building's info is exported is a random decision by the assessing software program.Note 2: The Year Built is determined by the assessor and it may be influenced/reflective of when the building was last majorly renovated. The Year Built from the assessor's database is utilized for taxation purposes. This date may not accurately reflect historical fact. The end-user is encouraged to research year built through other resources such as the local museum, town historic commission, &/or the registry of deeds.

MassGIS Level 3 Parcel Data: Data Fiscal Year: Aquinnah 2019, Chilmark 2021, Edgartown 2021, Gosnold 2015, Oak Bluffs 2021, Tisbury 2021, West Tisbury 2021.Building Info Table: Acquired by MVC from Town Assessors in FY20.Downloaded from MassGIS,, this polygon file represents the parcel bounds for the 7 towns in Dukes County MA (Aquinnah, Chilmark, Edgartown, Godnold, Oak Bluffs, Tisbury, West Tisbury). Each town has their own parcel data consultant and then the data are forwarded to MassGIS for final processing. All data comply with the MassGIS Level 3 Parcel Data Standard. This file geodatabase only includes the TaxPar feature class and Assess table for each town. All TaxPar feature classes were appended into one feature class (Parcels_duk) by the MVC.Each assess table is utilized in that town's respective relationship join (1 to Many) for linking the parcel polygon to the related record(s) in the Assess table. The Assess Table contains info about ownership and assessed values. This is not a detailed building table. If there are multiple owners associated with a property, then the Assess table will have multiple records for that property/parcel (such as for condo parcels).Each building table is utilized in that town's respective relationship join (1 to Many) for linking the parcel polygon to the related record(s) in the Bldg table. The Bldg (building) table contains info about each building on the parcel (such as number of bedrooms, number of bathrooms, the living area square footage, etc.). NOTES of CAUTION: The Living Area Square Footage may not represent the exact same thing in each town. As a generalization, Living Area is interior space that is heated. Regarding West Tisbury, their building table only contains info for one building on the parcel. It is uncertain at this time if the info is the most recent, most primary, or some kind of summarization where multiple buildings on a parcel exist.The field of [assess_mYB] represents the Minimum/Earliest Year Built for any building on the parcel and is appended to the TaxPar feature class based on an analysis of the info provided in the building table. This field [assess_mYB] is utilized in the Historic Structures App found in ArcGIS OnLine.

Land use for the following watersheds: Chilmark Pond - Upper & Lower, James Pond, Menemsha Pond, Squibnocket Pond, and Tisbury Great Pond.Land use is based on assessor's use code (the first code that joins from the M*_Assess table to the M*_TaxPar feature class). The use codes have been generalized based on the methodology used in earlier Mass Estuaries Reports (MEP). West Tisbury data is FY21, Chilmark data is FY20, Aquinnah data is FY19. These are the latest parcel datasets available from MassGIS data portal as of 4/2021.Existing building count is based on MassGIS Structures having a roof square footage > 400. Future potential building count was modeled using CommunityViz software based on the most recent parcel bounds (year varies by Town; range is FY19 to FY21), minimum parcel size & road setback per town zoning (as compiled by the MVC in 2008), and existing buildings (MassGIS roof area > 400sq ft). No areas were prohibited from future development. Post-modeling, the MVC eliminated future buildings that overlapped with current open space/conservation land (per MVC & Island Conservation Partnership 4/2021).Major watershed boundaries are those created through the MEP modeling process (SMAST & MVC 2014).

Overlay zoning districts are in addition to standard town zoning. The districts' boundaries and use limitations &/or development constraints are described in the town's zoning bylaw. The MVC generated these digital spatial boundaries based on the best GIS data available at the time of processing.

Some overlay zoning districts are also Districts of Critical Planning Concern. These are zoning districts established by the Martha'sVineyard Commission and adopted by the town at town meeting.

The boundaries are not survey-grade and are intended for planning purposes only.

This is a regulatory data layer. If your project falls within a Priority Habitat area, your project may need further review by Natural Endangered Species Program (NHESP). Please see the MassGIS website for full details.The original state-wide Priority Habitat data layer was intersected with the 3-mile limit town bounds for all towns within Dukes County. The town boundary lines are not survey-grade.

Level 3 Parcel Data Standard Compliant parcel boundaries for West Tisbury, MA. A 1-M relationship class exists from the parcels to the Assess table and from parcels to the Building table. The building table is an additional table (not part of the Level 3 Standard). Building info was provided by the Town assessor in late early 2020. The building table only provides info for one building on the parcel. Which building (i.e. oldest, newest, etc) is unknown. Use data with caution.

MassGIS Level 3 Parcel Data: Data Fiscal Year: Aquinnah 2019, Chilmark 2020, Edgartown 2021, Gosnold 2015, Oak Bluffs 2021, Tisbury 2021, West Tisbury 2021.Building Info Table: Acquired by MVC from Town Assessors in FY20.Downloaded from MassGIS,, this polygon file represents the parcel bounds for the 7 towns in Dukes County MA (Aquinnah, Chilmark, Edgartown, Godnold, Oak Bluffs, Tisbury, West Tisbury). Each town has their own parcel data consultant and then the data are forwarded to MassGIS for final processing. All data comply with the MassGIS Level 3 Parcel Data Standard. This file geodatabase only includes the TaxPar feature class and Assess table for each town. All TaxPar feature classes were appended into one feature class (Parcels_duk) by the MVC.Each assess table is utilized in that town's respective relationship join (1 to Many) for linking the parcel polygon to the related record(s) in the Assess table. The Assess Table contains info about ownership and assessed values. This is not a detailed building table. If there are multiple owners associated with a property, then the Assess table will have multiple records for that property/parcel (such as for condo parcels).Each building table is utilized in that town's respective relationship join (1 to Many) for linking the parcel polygon to the related record(s) in the Bldg table. The Bldg (building) table contains info about each building on the parcel (such as number of bedrooms, number of bathrooms, the living area square footage, etc.). NOTES of CAUTION: The Living Area Square Footage may not represent the exact same thing in each town. As a generalization, Living Area is interior space that is heated. Regarding West Tisbury, their building table only contains info for one building on the parcel. It is uncertain at this time if the info is the most recent, most primary, or some kind of summarization where multiple buildings on a parcel exist.The field of [assess_mYB] represents the Minimum/Earliest Year Built for any building on the parcel and is appended to the TaxPar feature class based on an analysis of the info provided in the building table. This field [assess_mYB] is utilized in the Historic Structures App found in ArcGIS OnLine.

Assessors parcel data for Town/City of West Tisbury. Developed from existing digital data that is maintained annually from deeds and plans using GIS software tools. Geometry and attribute data updated on 3/2016

Town zoning districts for all 7 towns within Dukes County MA. These zoning extents have been mapped over the years (starting in the early 2000s) based upon written descriptions in the town's bylaws. A variety of basemap references and vintages have been used to map the extents of these zones. Data are for planning purposes only and are not survey-grade.This web map also contains Tisbury's "Management Areas" within their Waterfront/Commercial District. These sub-areas are described in detail in the Town's zoning bylaws.The Dukes County Towns include: Aquinnah, Chilmark, Edgartown, Gosnold, Oak Bluffs, Tisbury, and West Tisbury.The Martha's Vineyard Commission makes all efforts to keep these data up to date and as accurate as possible. Please contact the MVC if you believe the data contain inadvertent errors or omissions. The date of last GIS edit is contained within the attribute table of the zoning data.The parcel data are served out by MassGIS and updated by the Town's parcel data consultant. The MVC does not edit or maintain parcel data for any of the Dukes County Towns.

Project compiled on 11/23/22 using the most current & readily available data. These data are required within the Housing Site Suitability Tool. Attributes in these datasets may differ from other versions of these data as the Tool requires certain inputs.