Gives property, or parcel, ownership together with value information, which ensures fair assessment of Boston taxable and non-taxable property of all types and classifications. To preserve their integrity, the identifiers PID, CM_ID, GIS_ID, ZIPCODE, and MAIL_ZIPCODE all are marked with an underscore ("_") as the last character.

Year-specific documentation for the FY2008 through FY2013 files is not currently available, but the format of those files is equivalent to that described in the FY2014 documentation.

The Assessing Online application brings direct access for taxpayers, homeowners, real estate and legal professionals as well as business owners to property parcel data including assessed value, location, ownership and tax information for each piece of property in the city.

The information assists homeowners directly in their ownership responsibilities by providing the current value and tax status of their property. Professional real estate, business and legal entities access and draw upon Boston property parcel data to support and enhance their specific business operations. The GIS data appended to this application provides valuable graphical contexts for researchers, analysts and other professionals interested in demographical patterns, property usage and development.

March 2025

Violations on Boston buildings or properties issued by inspectors from the Building and Structures Division of the Inspectional Services Department.

Note: property_id is equivalent to sam_id.

Looking for Public Works violations? Check out this dataset: https://data.boston.gov/dataset/public-works-violations

This dataset details the various cross-sectional and longitudinal data files of the City of Boston's property assessment data. These data were curated and added to by the Boston Area Research Initiative. The corresponding documentation details information about the various attributes and measures within these data files. Note that Assessments from the year of 2022 are those published in 2023. (2023-11-30)

Direct link: Short-Term Rental Eligibility Dataset

DATASET CONTEXT

Boston's ordinance on short-term rentals is designed to incorporate the growth of the home-share industry into the City's work to create affordable housing for all residents. We want to preserve housing for residents while allowing Bostonians to benefit from this new industry. Starting on on January 1, 2019, short-term rentals in Boston will need to register with the City of Boston.

Eligibility for every unit in the City of Boston is dependant on the following six criteria:

• No affordability covenant restrictions
• Compliance with housing laws and codes
• No violations of laws regarding short-term rental use
• Owner occupied
• Two- or three-family dwelling
• Residential use classification

The Short-Term Rental Eligibility Dataset leverages information, wherever possible, about these criteria. For additional details and information about these criteria, please visit https://www.boston.gov/short-term-rentals.

ABOUT THIS DATASET

ATTENTION: The Short-Term Rental Eligibility Dataset is now available for residents and landlords to determine their registration eligibility.

NOTE: These data are refreshed on a nightly basis.

In June 2018, a citywide ordinance established new guidelines and regulations for short-term rentals in Boston. Registration opened January 1, 2019. The Short-Term Rental Eligibility Dataset was created to help residents, landlords, and City officials determine whether a property is eligible to be registered as a short-term rental.

The Short-Term Rental Eligibility Dataset currently joins data from the following datasets:

• Live Street Address Management (SAM) Addresses
• Assessing Online
• Code Enforcement - Building and Property
• Problem Properties
• Income-Restricted Properties
• STR Registration Data

HOW TO DETERMINE ELIGIBILITY FOR SHORT-TERM RENTAL REGISTRATION

1. ** Open** the Short-Term Rental Eligibility Dataset. In the dataset's search bar, enter the address of the property you are seeking to register.

2. Find the row containing the correct address and unit of the property you are seeking. This is the information we have for your unit.

3. Look at the columns marked as “Home-Share Eligible,” “Limited-Share Eligible,” and “Owner-Adjacent Eligible.”

   A “yes” under any of these columns means your unit IS eligible for registration under that short-term rental type. Click here for a description of short-term rental types.

   A “no” under any of these columns means your unit is NOT eligible for registration under that short-term rental type. Click here for a description of short-term rental types.

4. If your unit has a “yes” under “Home-Share Eligible,” “Limited-Share Eligible,” or “Owner-Adjacent Eligible,” you can register your unit here.

WHY IS MY UNIT LISTED AS “NOT ELIGIBLE”?

If you find that your unit is listed as NOT eligible, and you would like to understand more about why, you can use the Short-Term Rental Eligibility Dataset to learn more. The following columns measure each of the six eligibility criteria in the following ways:

1. No affordability covenant restrictions

   • A “yes” in the “Income Restricted” column tells you that the unit is marked as income restricted and is NOT eligible.

The “Income Restricted” column measures whether the unit is subject to an affordability covenant, as reported by the Department of Neighborhood Development and/or the Boston Planning and Development Agency.
For questions about affordability covenants, contact the Department of Neighborhood Development.

1. Compliance with housing laws and codes

   • A “yes” in the “Problem Properties” column tells you that this unit is considered a “Problem Property” by the Problem Properties Task Force and is NOT eligible.

Learn more about how “Problem Properties” are defined here.

* A **“yes”** in the **“Problem Property Owner”** column tells you that the owner of this unit also owns a “Problem Property,” as reported by the Problem Properties Task Force. 

Owners with any properties designated as a Problem Property are NOT eligible.

No unit owned by the owner of a “Problem Property” may register a short-term rental.
Learn more about how “Problem Properties” are defined here.

* The **“Open Violation Count”** column tells you how many open violations the unit has. Units with **any open** violations are NOT eligible. Violations counted include: violations of the sanitary, building, zoning, and fire code; stop work orders; and abatement orders. 

NOTE: Violations written before 1/1/19 that are still open will make a unit NOT eligible until these violations are resolved.
If your unit has an open violation, visit these links to appeal your violation(s) or pay your code violation fine(s).

* The **“Violations in the Last 6 Months”** column tells you how many violations the unit has received in the last six months. Units with **three or more** violations, whether open or closed, are NOT eligible. 

NOTE: Only violations written on or after 1/1/19 will count against this criteria.
If your unit has an open violation, visit these links to appeal your violation(s) or pay your code violation fine(s).

How to comply with housing laws and codes:
Have an open violation? Visit these links to appeal your violation(s) or pay your code violation fine(s).
Have questions about problem properties? Visit Neighborhood Service’s Problem Properties site.
a legal restriction that prohibits the use of the unit as a Short-Term Rental under condominium bylaws.
Units with legal restrictions found upon investigation are NOT eligible.

If the investigation of a complaint against the unit yields restrictions of the nature detailed above, we will mark the unit with a “yes” in this column. Until such complaint-based investigations begin, all units are marked with “no.”
NOTE: Currently no units have a “legally restricted” designation.
Limited-Share
If you are the owner-occupant of a unit and you have not filed for Residential Tax Exemption, you can still register your unit by proving owner-occupancy. It is recommended that you submit proof of residency in your short-term rental registration application to expedite the process of proving owner-occupancy (see “Primary Residence Evidence” section).

* **“Building Owner-Occupied”** measures whether the building has a single owner AND is owner occupied. A “no” in this column indicates that the unit is NOT eligible for an owner-adjacent short-term rental. 

If you believe your building occupancy data is incorrect, please contact the Assessing Department.

1. Two- or three-family dwelling

   • The “Units in Building” column tells you how many units are in the building. Owner-Adjacent units are only allowed in two- to three-family buildings; therefore, four or more units in this column will mark the unit as NOT eligible for an Owner-Adjacent Short-Term Rental.

   • A “no” in the “Building Single Owner” column tells you that the owner of this unit does not own the entire building and is NOT eligible for an Owner-Adjacent Short-Term Rental.

   If you believe your building occupancy data is incorrect, please contact the Assessing Department.
   R4

   If you believe your building occupancy data is incorrect, please contact the Assessing Department.

Visit this site for more information on unit eligibility criteria.

RentSmart Boston compiles data from BOS:311 and the City's Inspectional Services Division to give prospective tenants a more complete picture of the homes and apartments they are considering renting, assisting them in understanding any previous issues with the property, including: housing violations, building violations, enforcement violations, housing complaints, sanitation requests, and/or civic maintenance requests.

You can look up individual properties using the RentSmart dashboard here.

Citations issued by the Public Works Department's Code Enforcement Division.

Looking for Building and Property violations? Check out this dataset: https://data.boston.gov/dataset/building-and-property-violations1

Building permits help to establish compliance of construction work with the minimum standards of safety established by the State Building Code to ensure public health and safety for everyone. A building permit is required before beginning most construction, demolition, modification and repair work. The Inspectional Services Department offers permitting processes tailored for a wide variety of projects, from home repairs to building demolition.

For more information on the permitting process, visit our Inspectional Services Department Permitting Process page. To apply for a new building permit or check the status of your pending permit application, go to our City of Boston Permits and Licenses Application page.

WHAT IS THE DATASET FOR?

This dataset includes information about building permits issued by the City of Boston from 2009 to the present. Permits that are being processed or have been denied, deleted, void or revoked are not included in the dataset.

WHAT PERMIT TYPES ARE PRESENT IN THE DATASET?

This dataset includes information about the following types of building permits:

• Short Form Building Permit
• Electrical Permit
• Plumbing Permit
• Gas Permit
• Electrical Low Voltage
• Long Form/Alteration Permit
• Electrical Fire Alarms
• Certificate of Occupancy
• Electrical Temporary Service
• Amendment to a Long Form
• Erect/New Construction
• Use of Premises
• Foundation Permit

For more information on these permits and their application process, visit our Building Permits information page.

WHAT DOES EACH PERMIT APPLICATION STATUS MEAN?

• Issued: indicates that the permit has been issued on date specified as issued_date.

• Open: indicates that the permit has been issued and is still valid for the applicant (i.e. not expired yet).

• Closed: indicates that the permit was successfully issued but is not valid anymore (i.e. has expired).

• Stop work: indicates the permit was successfully issued but it stopped working due to non-compliance or other issues before the expiration date.

This dataset pulls from many different data sources to identify individual building characteristics of all buildings in Boston. It also identifies high-potential retrofit options to reduce carbon emissions in multifamily buildings, using the best available data and assumptions from building experts.

Building characteristics will require on-site verification before an owner can act on them.

Find out more about carbon targets for Boston's existing large buildings.

Click here to check Short-Term Rental Eligibility

Boston's ordinance on short-term rentals is designed to incorporate the growth of the home-share industry into the City's work to create affordable housing for all residents. We want to preserve housing for residents while allowing Bostonians to benefit from this new industry. Starting on on January 1, 2019, short-term rentals in Boston will need to register with the City of Boston.

Eligibility for every unit in the City of Boston is dependant on the following six criteria:

• No affordability covenant restrictions
• Compliance with housing laws and codes
• No violations of laws regarding short-term rental use
• Owner occupied
• Two- or three-family dwelling
• Residential use classification

The Short-Term Rental Eligibility Dataset leverages information, wherever possible, about these criteria. For additional details and information about these criteria, please visit https://www.boston.gov/short-term-rentals.

ABOUT THIS DATASET

In June 2018, a citywide ordinance established new guidelines and regulations for short-term rentals in Boston. Registration opened January 1, 2019. The Short-Term Rental Eligibility Dataset was created to help residents, landlords, and City officials determine whether a property is eligible to be registered as a short-term rental.

The Short-Term Rental Eligibility Dataset currently joins data from the following datasets and is refreshed nightly:

• Live Street Address Management (SAM) Addresses.
• Assessing Online.
• Building and Property Violations
• Problem Properties
• Income-Restricted Properties
• STR Registration Data

HOW TO DETERMINE ELIGIBILITY FOR SHORT-TERM RENTAL REGISTRATION

1. ** Open** the Short-Term Rental Eligibility Dataset. In the dataset's search bar, enter the address of the property you are seeking to register.

2. Find the row containing the correct address and unit of the property you are seeking. This is the information we have for your unit.

3. Look at the columns marked as “Home-Share Eligible,” “Limited-Share Eligible,” and “Owner-Adjacent Eligible.”

   • A “yes” under any of these columns means your unit IS eligible for registration under that short-term rental type. Click here for a description of short-term rental types.
   • A “no” under any of these columns means your unit is NOT eligible for registration under that short-term rental type. Click here for a description of short-term rental types.

4. If your unit has a “yes” under “Home-Share Eligible,” “Limited-Share Eligible,” or “Owner-Adjacent Eligible,” you can register your unit here.

WHY IS MY UNIT LISTED AS “NOT ELIGIBLE”?

If you find that your unit is listed as NOT eligible, and you would like to understand more about why, you can use the Short-Term Rental Eligibility Dataset to learn more. The following columns measure each of the six eligibility criteria in the following ways:

1. No affordability covenant restrictions

   • A “yes” in the “Income Restricted” column tells you that the unit is marked as income restricted and is NOT eligible.
     
     
   • The “Income Restricted” column measures whether the unit is subject to an affordability covenant, as reported by the Department of Neighborhood Development and/or the Boston Planning and Development Agency.
     
     
   • For questions about affordability covenants, contact the Department of Neighborhood Development.
     
     

2. Compliance with housing laws and codes

   • A “yes” in the “Problem Properties” column tells you that this unit is considered a “Problem Property” by the Problem Properties Task Force and is NOT eligible.
     
     
   • Learn more about how “Problem Properties” are defined here.
     
     
   • A “yes” in the “Problem Property Owner” column tells you that the owner of this unit also owns a “Problem Property,” as reported by the Problem Properties Task Force.
     
     
   • Owners with any properties designated as a Problem Property are NOT eligible.
     
     
   • No unit owned by the owner of a “Problem Property” may register a short-term rental.
     
     
   • Learn more about how “Problem Properties” are defined here.
     
     
   • The “Open Violation Count” column tells you how many open violations the unit has. Units with any open violations are NOT eligible. Violations counted include: violations of the sanitary, building, zoning, and fire code; stop work orders; and abatement orders.
     
     
   • NOTE: Violations written before 1/1/19 that are still open will make a unit NOT eligible until these violations are resolved.
     
     
   • If your unit has an open violation, visit these links to appeal your violation(s) or pay your code violation fine(s).
     
     
   • The “Violations in the Last 6 Months” column tells you how many violations the unit has received in the last six months. Units with three or more violations, whether open or closed, are NOT eligible.
     
     
   • NOTE: Only violations written on or after 1/1/19 will count against this criteria.
     
     
   • If your unit has an open violation, visit these links to appeal your violation(s) or pay your code violation fine(s).
     
     
   • How to comply with housing laws and codes:
     
     
   • Have an open violation? Visit these links to appeal your violation(s) or pay your code violation fine(s).
     
     
   • Have questions about problem properties? Visit Neighborhood Service’s Problem Properties site.
     
     

3. No violations of laws regarding short-term rental use

   • A “yes” in the “Legally Restricted” column tells you that there is a complaint against the unit that finds

     • A legal restriction that prohibits the use of the unit as a Short-Term Rental under local, state, or federal law, OR

     • legal restriction that prohibits the use of the unit as a Short-Term Rental under condominium bylaws.

     • Units with legal restrictions found upon investigation are NOT eligible.
       
       

     • If the investigation of a complaint against the unit yields restrictions of the nature detailed above, we will mark the unit with a “yes” in this column. Until such complaint-based investigations begin, all units are marked with “no.”
       
       

     • NOTE: Currently no units have a “legally restricted” designation.
       
       

4. Owner-occupied

   • A “no” in the “Unit Owner-Occupied” column tells you that there is NO Residential Tax Exemption filed for that unit via the Assessing Department, and that unit is automatically categorized as NOT eligible for the following Short-Term Rental types:

     • Home-Share
     • Limited-Share
       
       
     • Residential Tax Exemption indicates that a unit is owner-occupied and generates a “yes” in the “Unit Owner-Occupied” column.
       
       

     • Owners are not required to file a Residential Tax Exemption in order to be eligible to register a unit as a Short-Term Rental.
       
       

     • If you would like to apply for Residential Tax Exemption, you can apply here.
       
       

     • If you are the owner-occupant of a unit and you have not filed for Residential Tax Exemption, you can still register your unit by proving owner-occupancy.
       

     • It is recommended that you submit proof of residency in your short-term rental registration application to expedite the process of proving owner-occupancy (see

TO VIEW A GLOSSARY OF TERMS FOR THE DIRECTORY - CLICK HERE

WHAT IS THIS TRACKER FOR?

The City of Boston is committed to increasing transparency in the processes around the Zoning Board of Appeal (ZBA). The Inspectional Services Department (ISD) at the City is tasked with ensuring compliance with the zoning code. If an application for a permit is refused because of a zoning violation, applicants are able to appeal the decision to the ZBA and ask for an exception, sometimes known as a “variance.” If the ZBA grants relief, then the appellant is able to continue with the process of obtaining a permit.

In order to provide greater transparency in the ZBA process, the City of Boston Zoning Board of Appeal tracker is now available on Analyze Boston. Each record in this tracker represents an appeal of a denied permit application; the original permit application is known as the “parent application.” To find out more information about the original permit application, visit our Permit Finder tool. To view a map of this data, visit our ZBA Tracker Map Tool.

To learn more about the ZBA process and how to file an appeal, visit our website.

WHAT DOES EACH STATUS MEAN?

Appeal Submitted - indicates that an appeal of a zoning refusal was successfully submitted into ISD’s tracking system, either in-person at ISD (1010 Massachusetts Ave.) or through the online application portal.

More Information:

• For detailed information on how to file an appeal, see this page on the ISD website.

Next steps:

• The appeal will undergo an initial review by City staff to ensure that all necessary information and documentation has been included.
• The appellant must pay a fee.

Community Process - indicates that City staff have completed their review and signed off for the appeal process to move onto getting community feedback.

Contact Information:

• Use the link below to find the Neighborhood Liaison from the Office of Neighborhood Services for the application’s location.

Next steps:

• The appellant will work with the Mayor’s Office of Neighborhood Services to engage with people who own adjacent properties, members of the local community, and other relevant stakeholders.

• Depending on the type of project, the Boston Planning and Development Agency may also conduct a review.

Hearing Scheduled - indicates that the appeal has been scheduled for a committee or subcommittee meeting of the ZBA. For this to take place, the Mayor’s Office of Neighborhood Services has notified ISD that the appellant has adequately engaged with the community that would be affected, should the zoning relief be granted.

Attendance Information:

• View a schedule of hearings at the ZBA webpage. Select an Upcoming Hearing to find the list of topics and how to attend.

Next steps:

• The appellant will attend the hearing in person (or through the virtual meeting). The appellant will provide the ZBA with reasons why an exception or variance to the zoning code should be granted and answer any questions from the ZBA.

• At the hearing, members of the public will be able to testify in support or against the appeal.

• The ZBA will discuss the appeal and vote to approve or deny.

Alternatively:

• The appellant can request a deferral; if allowed by the ZBA, during the hearing the appeal will receive a new hearing date.

• The appellant can withdraw the application; if allowed by the ZBA, it can be withdrawn without prejudice.

Hearing Rescheduled - indicates that the appeal’s scheduled committee meeting has been changed. This can happen for several reasons. For example, the appellant can request a deferral if they need more time to complete or update plans, or the board can defer an appeal if a quorum isn’t present (perhaps due to a recusal). A request for deferral is approved by the board, which also selects a new hearing date.

Next steps:

• Same as Hearing Scheduled above.

Hearing Concluded - indicates that the hearing has taken place. The appeal could have been approved, denied, deferred, or withdrawn, with or without additional requirements.

Additional Information:

• Meeting minutes from each committee meeting are available to download from the ZBA webpage.

Next steps:

• The ZBA Executive Secretary finalizes the Board’s decision in writing or the appellant’s attorney submits a finalized decision for ISD Legal Team review.

ZBA Decision Finalized - indicates the date on the ZBA’s written decision letter. The decision is listed under the ‘result’ field.

Next steps:

• Neighboring property owners are notified of the decision shortly after this date

• Beginning on the Final Decision Date, neighboring property owners and other involved parties who disagree with the ZBA’s decision have twenty days to file an appeal in Suffolk County Superior Court or Boston Housing Court. (For detailed information on the Zoning Commission and appeal process, please refer to Chapter 665 of the Acts of 1956, available here)

Appeal Closed - indicates the appeal’s outcome has been finalized and the twenty day Appeal period has ended.

Next steps:

• Depending on the ZBA decision, the appellant may or may not be able to continue the process for seeking the permit for which zoning relief was requested.

• If the ZBA approved or sustained with proviso, the appellant must take additional steps before continuing the permitting process.

WHAT DOES EACH RESULT MEAN?

Approved - means the zoning relief requested has been granted.

Approved with Proviso - means the zoning relief requested has been granted, with some conditions that must be fulfilled before the permitting process can continue. These conditions will be detailed in the written decision of the ZBA. Examples of such conditions could include: having the Boston Planning and Development Agency review updated plans; submitting more detailed plans; or obtaining additional engineer reports.

Denied - means the zoning relief requested was not granted. The appellant must wait a year before submitting a new appeal on a project for the same site.

Denied without Prejudice - means the zoning relief requested was not granted. However, the appellant only has to wait thirty days before submitting an appeal on a new project at the same site.

Withdrawn - means the appellant has chosen to remove the appeal from the ZBA’s consideration. The appellant does not have to wait a year to appeal the same zoning violations.

Note: If there is no result listed, it means that the ZBA has not issued its final written decision on the appeal. This may be the case even for appeals that have been heard by the ZBA.

HOW DO I USE THIS TRACKER?

This tracker is designed for members of the public and City of Boston employees to be able to quickly search for a specific appeal that has been submitted to the ZBA, or to search for appeals based on criteria such as location or primary contact, in order to identify the status of the appeal.

Below, under the "Data and Resources" header, you will see the "Zoning Board of Appeal Tracker" dataset:

• To look at the directory - click the "Preview" button and you will be taken to a spreadsheet-like view of the directory data.

• To expand the number of applications available to scroll through, click the "Show _ Entries" drop down at the top left of the data table and select your desired number. Alternatively, you can scroll to the bottom right of the dataset and select your desired page number.

• To search the tracker - use the search box to the top right of the data table to search for any keyword in the dataset. For example, if you are looking for a certain contact, type the name into the search box and see what comes back.

• To filter the data, click the blue "Add Filter" link at the top left of the data table, select the field you would like to filter on, and select the corresponding value of that field that you would like to display. For example - if you wanted to show applications for properties in Charlestown, you would click "Add Filter", select the "city" field, and select "Charlestown". You can add multiple filters.

• To sort the data based on a specific field, click the arrows next to the field name to sort in either ascending or descending order.

• To hide columns that aren't relevant to you, click the blue "Hide/Unhide Columns" button at the top right of the data table, and click on the desired column names. Hidden column names will be highlighted in white. To unhide a column, simply click it again.

• The Data Dictionary - which explains what each field means and what the values of each field mean - is available as a table below the directory, and is also