Researching Homes at the Library

Researching Homes

Many Somerville homes have rich and varied histories, but unearthing those histories often requires quite a bit of research. The tips and resources below will help you get started.
See also:
Researching your Historic Home at the Registry of Deeds
- Research Your House and Family History  (City of Somerville guide)


Word of Mouth

The first step should always be to talk to your neighbors. Ask them if they know anything about the history of your house or neighborhood. If possible, talk to previous owners. Any information you can glean from others will make your research easier.


Primary Sources: City and County Government

Primary sources are firsthand records of events—such as government documents, business records, or manuscripts

  • Deeds. Deeds describe a property, state its worth, and name the owner. The current deed should also include the deed book number and page number of the previous owner's deed. Ideally you should be able to trace a chain of ownership back to the construction of the house. Deeds for Somerville properties are held at the Middlesex Registry of Deeds, 208 Cambridge Street in East Cambridge. 617 679-6300. M-F 8am - 3:45pm. Please note: due to COVID-19, the Middlesex Registry of Deeds is closed to the public until further notice. However, many Somerville deeds are available online at the Registry’s database.

  • Wills and Probate Records. Probate records are the records created for the public supervision of an individual's property upon his death. Probate records usually include wills and an inventory of the deceased's estate. Somerville probate records are filed at the Middlesex Registry of Probate (across the street from the Registry of Deeds). Telephone (617) 768-5800. Hours: M-F 8:00am - 4:30pm Please note: due to COVID-19, the Middlesex Registry of Probate is closed to the public until further notice. However, many historic probate records are available online. Instructions for locating them are at this guide to court archives and other online resources.

  • Building Permits. Somerville Building Permits are located at the Inspectional Services Department in the Department of Public Works Building at 1 Franey Road. Inspectional Services has original building permits from 1895 to the present, as well as “jacket files” (records of home repairs and alterations) from 1940 to the present. Office Hours: M-W 8:00am - 4:00pm, Thursdays 8:00am - 7:00pm, Fridays 8:00am -12:00pm. Best hours to visit—10:00am - 3:00pm. Please note: due to COVID-19, the Inspectional Services Department is closed until further notice. 

Primary Sources in the Library and Online

The Somerville Public Library has numerous resources—maps, city directories, architectural guides—that can teach you about the history of your neighborhood, find out who lived in your house before you, and possibly identify when it was built.

Maps and Atlases. Links to online copies appear where available:

  • Somerville Map, 1852. Notes prominent topographical features and buildings (e.g., McLean Asylum, American Tube Works). Located in map case, Wellington Hall.
  • Atlas of the City of Somerville, 1874 & 1884. Contains outlines of individual properties and specifies owners. Located in Local History Room.
  • Zoning and Ward Maps, 1925 to present. Determining which city ward your house was in is a prerequisite for using city directories in your research. Ask at the reference desk.
  • Sanborn Fire Insurance Maps, 1900 & 1933/1934, 1934-1950. Sanborn Fire Insurance maps were made as a resource to assess fire risk for buildings. Thus they outline individual structures and color code them brick, stone and wood exteriors. Sanborn maps of Somerville may also be accessed here by scrolling down the alphabetical list of databases until you get to Digital Sanborn Maps of Massachusetts, 1867-1971. Note: you will need a Minuteman library card to access this resource.

City Directories on paper or microfilm. Lists of town residents and their addresses are kept in the Local History Room.

  • Charlestown City Directories, 1834-1874. Microfilm Cabinet. Until 1842 Somerville was officially part of Charlestown.
  • Somerville City Directories, (1851-1933, 1939-present) Organized by name from 1851-1933. Organized by ward, precinct and address from 1939 to the present.

Somerville City Directories available online.

No. 1 1869-70 No. 25 1902
No. 2 1871-72 No. 26 1903
No. 3 1873 No. 27 1904
No. 5 1875-76 No. 28 1905
No. 6 1877 No. 29 1906
No. 7 1879-80 No. 32 1909
No. 8 1881 No. 33 1910
No. 9 1883 No. 34 1911
No. 10 1884 No. 35 1912
No. 11 1885 No. 36 1913
No. 12 1887 No. 37 1914
1889 No. 38 1915
No. 22 1899 No. 40 1917
No. 23 1900 No. 42 1919
No. 24 1901  

Secondary Sources in the Library and Online 

Secondary sources provide interpretations or descriptions of primary sources.

  • City of Somerville Historic Districts. Somerville, MA: Somerville Historic Commission, [200u]. Call number: LOCAL HISTORY 974.44 HI (2 vols.)
    Lists the original owners and building date of registered historic houses.

These three introductory guides to American architecture explain the distinguishing characteristics of different architectural styles, which can help date the construction of a house. 

Updated 5/13/2020