Avon Hill Historic District

The Cooper–Frost–Austin House is a historic Colonial American house, built in 1681. It is located at 21 Linnaean Street, Cambridge, Massachusetts. It is the oldest extant home in Cambridge and is owned and operated as a non-profit museum by Historic New England. The house is rarely open for public tours, but private tours can be arranged during the summer months. The house was built by Samuel Cooper on land that his father, Deacon John Cooper, had owned since 1657, and was first documented in 1689 in The Register Book of the Lands and Houses in the "New Towne" (as Cambridge was then named). Its original structure was a single room and chimney bay in width, two and one half stories in height with an integral lean-to, containing a "low room," "little room," "kitchin," "Chamber," "kitchin Chamber," "Garret," and "Cellar," all of which still exist, as do the original chimney and a facade gable. The house was extended ca. 1720 by Cooper's son, and then again between 1807 and 1816 by Martha Frost Austin and Thomas Austin who added an enclosed porch and Federal style stairway and trim. The house was acquired by Historic New England in 1912.In 2002 the Oxford Dendrochronology Laboratory analyzed wooden beams from the original structure and ascertained that donor trees were felled at the following times: Winter 1675–6, Winter 1680–81, and Spring 1681. The oldest timber may have been stockpiled before construction.

The DeRosay-McNamee House is an historic house at 50 Mt. Vernon Street in Cambridge, Massachusetts. It is a 2+1⁄2-story brick house, with a dormered hip roof and limestone trim. Its main facade exhibits high-quality Colonial Revival styling, with a symmetrical appearance that includes rounded bays flanking the main entry, and an entrance porch supported by clusters of distinctively turned columns. It was built c. 1895-6 by the principal owner of a local brickyard, who pioneered modernizations allowing for the year-round manufacture of bricks.The house was listed on the National Register of Historic Places in 1990.

The Stillman Willis House is an historic house in Cambridge, Massachusetts. This 2+1⁄2-story house was built in 1839, and was originally located nearby on Massachusetts Avenue. It was moved to its present location in 1883, at which time it was extensively modernized, overlaying its Greek Revival features with Italianate and Colonial Revival styling. Surviving Greek Revival elements include corner pilasters and an entablature, while later features include bracketed window cornices and extensive decorative woodwork on the porches.The house was listed on the National Register of Historic Places in 1982.

The Elizabeth Frost Tenanthouse is an historic house at 35 Bowdoin Street in Cambridge, Massachusetts. The two story frame house was built in 1812, and was originally located on Massachusetts Avenue. It was next to the David Frost House, and was moved in the 1840s to its present location to make way for new construction. (The David Frost House was moved to an adjacent lot on Gray Street in 1889.) The house was used by Elizabeth Frost (David Frost's mother) as a rental property.The house listed on the National Register of Historic Places in 1983.

The David Frost House is an historic house at 26 Gray Street in Cambridge, Massachusetts. It is a 2+1⁄2-story wood-frame house, five bays wide, with twin interior chimneys and a typical Federal period center-hall plan. It was built in 1815, and was originally located on Massachusetts Avenue, then a relatively rural area. It was relocated to its present site in 1889, when Massachusetts Avenue became a desirable location to build larger, more fashionable houses, after the arrival of public transit.The house was built in 1815 and added to the National Register of Historic Places in 1983.

The Peabody Court Apartments are a historic apartment building at 41-43 Linnaean Street in Cambridge, Massachusetts. The four story Colonial Revival brick building was built in 1922. The H-shaped building has deep courtyards, and is trimmed with limestone elements, including corner quoins, window sills, and keystone lintels. It is a well-preserved example of a courtyard apartment block, a style popularized in 1898 by Ralph Adams Cram.The building was listed on the National Register of Historic Places in 1986.

The E. H. Brabrook House is an historic duplex house in Cambridge, Massachusetts. It is a two-story wood-frame structure, six bays wide, with a side gable roof and a porch extending across its front facade. It was built in 1849 by Ezra Brabrook, a local furniture dealer. It is one of the first Italianate houses in Old Cambridge, retaining distinctive Greek Revival characteristics such as its corner pilasters and front door sidelight windows, while including an Italianate wide cornice and brackets.The house was listed on the National Register of Historic Places in 1986.

The W. A. Mason House is an historic house at 87 Raymond Street in Cambridge, Massachusetts. The 2+1⁄2-story wood-frame house was built in 1846 and extended to the rear in 1867, giving it a T shape. Its massing is Italianate as are its decorative window hoods, but its corner pilasters give it a Greek Revival character. The main entrance is accessed through a single-story porch occupying the front crook of the T. W. A. Mason, for whom it was built, was a city surveyor who was responsible for surveying and platting a significant amount of the city in the 19th century.The house was listed on the National Register of Historic Places in 1983.

North Avenue Congregational Church (now known as John and Carol Moriarty Library, and previously as Old Cambridge Baptist Church and North Prospect Congregational Church and Prospect Hall) is a historic church meetinghouse at 1801(previously at 1803) Massachusetts Avenue in Cambridge, Massachusetts. It was completely renovated in 2015 to become a library for Lesley University. The former church now forms part of what is now the Lunder Arts Center complex.

The William Saunders House is an historic house at 6 Prentiss Street in Cambridge, Massachusetts. It is a 2+1⁄2-story wood-frame structure, three bays wide, with a front-facing gable roof. Two-story pilasters separate the bays, and there is an entablature below the fully pedimented gable. A single-story porch extends across the facade. The house was built by housewright William Saunders for his son, also named William. Originally located on Massachusetts Avenue, it was moved to its present location in 1926.The house was listed on the National Register of Historic Places in 1983. It served as a nursing home for a time in the 20th century, and is now operated as the Mary Prentiss Inn.

Prentiss House (formerly known as The Mary Prentiss Inn) has historic roots that reach as far back as 1843 and has transformed from a home on Prentiss Street to a Cambridge, Massachusetts inn. In 1843 the home was built by architect William A. Saunders as a wedding gift to his son, William, and his wife, Mary Prentiss. The home was built in the Neo-classical design during the popular Greek revival of 19th century in the United States of America. The Saunders resided at the home for 55 years. The building is on the U.S. National Register of Historic Places as the William Saunders House. The hotel had been a long-time home to the Saunderses and Taylor family, as well as a hostelry and nursing home. In December of 1991, a local artist, Charlotte Forsythe bought the home and began the journey of transforming the home into the Mary Prentiss Inn. In 2021, BREC LLC, a Boston-based development company, purchased the inn to update the property and to improve the guest experience while maintaining the quaint and private nature of the former inn. To this day, Prentiss House remains on the National Registry of Historic Places and is recognized as a landmark by the Cambridge Historical Commission.

The Lovell Block is an historic residential and commercial building at 1853 Massachusetts Avenue in Cambridge, Massachusetts. The three story brick building was built in 1882 by Andrew Jackson Lovell, with two specific commercial tenants in mind. One was his own grocery business, and the other was the North Cambridge Post Office. The upper floors contained a total of four well-appointed residential flats. The building was an early instance of a mixed-use residential-commercial structure, at a time when most lower-income housing was tenement-style, and the idea of higher-quality residential rental property was relatively new.The block was listed on the National Register of Historic Places in 1983.