Maintaining standardized assessor parcel mapping

MassGIS promotes standardized parcel mapping across the commonwealth

Between January of 2011 and June 2013, MassGIS completed standardization of "Level 3" assessor parcels for all communities across the Commonwealth (except Boston for reasons of cost and because of the high quality of the city's existing mapping). This achievement was only possible due to support from municipal staff, particularly assessing staff, and with assistance from mapping consultants, regional planning agencies, and the principal providers of computer assisted mass appraisal (CAMA) software.

Many communities are now maintaining the standardized mapping or their mapping services provider is doing so on their behalf. >> See the status map.

Many assessors have worked with their CAMA software provider to incorporate the unique identifier (the “LOC_ID”) from the standardized parcels directly into their CAMA databases; in some cases this step was take on their behalf by their CAMA software provider. >> See the status map.

Information for assessors

These pages for municipal assessors and others explain the value of maintaining standardized parcel mapping:

Also read the short document below explaining the importance of adding the LOC_ID to your CAMA database.

Additional Resources

Information for map maintenance service providers

Since MassGIS embarked on the standardized parcel mapping project, the GIS consulting firms working in Massachusetts, regional planning agencies and the principal providers to Massachusetts communities of CAMA software have supported and promoted the project. This guide explains the processes.

Additional Resources

Need more information?

If after consulting the above resources you still have questions on either of these topics, please contact Craig Austin at MassGIS.

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