This dataset has been deprecated and replaced by two new building permit datasets:

Building Permits: Addition/Alteration
https://data.cambridgema.gov/Inspectional-Services/Building-Permits-Addition-Alteration/qu2z-8suj/data

New Building Permits
https://data.cambridgema.gov/Inspectional-Services/New-Building-Permits/9qm7-wbdc/data

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Description for Deprecated Dataset:
Approved building permits for 1 and 2 family homes. Building permits are issued to licensed construction supervisors and enable recipients to construct, alter, or demolish a structure or install a sign. The building permit must be obtained from Cambridge's Inspectional Services Department before the start of any work and must be prominently posted at the job site. This dataset includes building permits for the construction of renovation of 1 and 2 family homes.

The data incorporates information on building permits, certificates of occupancy, lodging houses, and university owned housing, as well as Community Development Department information on the development pipeline. To assure equivalent treatment across the city, all apartment-style graduate student housing operated by local universities is included in the housing and property counts. These figures used here are a snap shot of the housing stock as of June 30, 2018.

The data incorporates information on building permits, certificates of occupancy, lodging houses, and university owned housing, as well as Community Development Department information on the development pipeline. To assure equivalent treatment across the city, all apartment-style graduate student housing operated by local universities is included in the housing and property counts. These figures used here are a snap shot of the housing stock as of June 30, 2018.

The data incorporates information on building permits, certificates of occupancy, lodging houses, and university owned housing, as well as Community Development Department information on the development pipeline. To assure equivalent treatment across the city, all apartment-style graduate student housing operated by local universities is included in the housing and property counts. These figures used here are a snap shot of the housing stock as of June 30, 2021.

Short-term rentals in Cambridge. Short-term rental (STR) refers to the rental of any dwelling unit of bedroom as residential accommodation for a duration of less than 30 consecutive days.

Total housing units by neighborhood change over time

This table represents all residential building permits. For each construction project the current use, new use, number of permitted units, number of units lost or gained, and location is noted.

The date reflects the year during which a building permit was first issued for a development project. This is not an indication of the date of completion. Units and property count includes only new buildings, not major rehabilitation. Data is subject to revision.

Data sources include the Cambridge Assessing Department, the Cambridge Community Development Log, and the Cambridge Inspection Services Department.

Blank cells indicate a lack of data.

Foreclosure is the process through which lenders recover the amount owed on a defaulted mortgage by selling or taking ownership of the property securing the loan. This data set tracks housing foreclosures at three points during the process: filing of a petition to foreclose, scheduling of a foreclosure auction, and filing of a foreclosure deed.

This table includes residential building permits issued from 1996 through December 31, 2021. Each listing includes the permitted address, map-lot parcel identification number, Cambridge neighborhood, prior use, permitted use, number of permitted units, and number of units lost or gained,

The date reflects the year during which a building permit was first issued for a development project. This is not an indication of the date of completion. This list only includes projects that removed an existing building, constructed a new building or combined or split units within an existing structure. Major rehabilitation projects that did not change a structures unit count are not included here. All data is subject to revision.

Data sources include the Cambridge Assessing Department, the Cambridge Development Log, and the Cambridge Inspection Services Department.

Blockgroup data from the 2013-2017 American Community Survey was recompiled by the Cambridge Community Development Department to align with approximate neighborhood boundaries. Categories include: Land Area, Housing Units, Housing Density, Total Occupied Units, Vacant Units, and Tenure. Replaces in part the data set: American Community Survey Estimates by Neighborhood 2013 - 2017 - DEPRECATED.