The Lovell Meeting House was built as the town hall and as a religious meeting place. The building was originally two stories tall, with gallery space on the second level. The symmetrical facade faces south with the entry door in the center. The building has a large window in the center of the west (street facing) elevation with a king truss (likely not an original element) in front of a carved wooden panel in the gable peak. There is simple wood-block quoining at the corners. Currently, it is a single-story wood-frame structure with a side gabled roof and clapboard siding.

Located on Lermond Pond, the Lermond Mill is comprised of two buildings. Both are timber framed with gabled roofs and wood shingle siding. The building constructed in 1803 is one-and-a-half stories. The second section was built in 1825 and is two stories. Both structures are joined by a small one-story shed with a gable roof and shingle siding. John Lermond came to Union in 1795 and built the dam that created Lermond Pond which powered a pit saw mill. By 1803 the present mill was constructed to serve as a grist mill.

Originally constructed in 1816 and remodeled in c.1825 and 1857, the Middle Intervale Meeting House is a wood-frame Greek Revival-style building. It sits at the northeast corner of the Town Common, an open area of about five acres originally set aside as a public training ground for the local militia. Sheathed in clapboards, the building is gable fronted with a square tower located just behind the gable peak. The symmetrical facade contains two entry doors, each framed by wooden pilasters supporting an entablature.

The Limerick Upper Village Historic District consists of twenty-eight properties including three constructed prior to statehood. Composed of the Upper Village located on top of a high ridge where a gap contains roughly 200 acres of flat land. The district mostly sits on Main Street and includes numerous businesses, residences, three churches, a former academy, library, town hall, multiple cemeteries, band stand, park, and a memorial marker. All three houses built before 1820 are multi-storied Federal-style houses with clapboard exteriors and known as the Rev. Edmund Eastman House (c.

Few of Maine's early schoolhouses still in existence hold so similarly to their original exterior design as the Alna School (also known as the Center School), located in Alna Center about a half-mile south of the Alna Meeting House (which is also listed in the National Register of Historic Places). It is believed to be the second-oldest schoolhouse still standing in Maine; the Old Schoolhouse in York predates it by 40 years. The Alna Schoolhouse is a one-story, nearly square building that maintained its educational function into the twentieth century.

The Belfast Historic District encompasses a large area of the city center and includes a variety of residential, commercial, religious, and governmental buildings. There are 287 properties listed in the district, and many of them were constructed before 1900. The district includes buildings on eighteen different streets. Various architectural styles were employed by its citizens including Federal, Greek Revival, Gothic Revival, Italianate, Queen Anne, and Renaissance Revival designs. Belfast was first settled in the late-eighteenth century.

The Holmes-Craft Homestead sits on a hill north of Jay proper at the fork of Route 17 and Old Jay Road. Original owner and early settler, John Starr was a representative to the Massachusetts General Court, first elected in 1804. Starr was a jack-of-all trades, working as a lawyer, judge, accomplished land surveyor, owner of a tavern with a stagecoach stop in the village, and postmaster. Later, Starr's son-in-law and talented cabinet maker, Aruna Holmes, purchased the property. The timber-framed Federal-style house is two stories high with a hipped roof.

Located in a rural area west of the town center, the James Smith Homestead is a Georgian era farmhouse. It is two stories tall with clapboard siding, a side gable roof, and large central chimney. The facade is symmetrical with a central entry. The entry door is framed by pilasters and topped by a broken pediment. A one-story ell extends to the southeast. James Smith purchased the land on which the house stands in 1753 and it remained in his family for many years.

Facing south on Pepperell Road towards the Piscataqua River, the First Congregational Church, the Parsonage, and Old Burying Ground are significant landmarks associated with Kittery's early development. The church, completed in 1730, is a wood-frame building with a gable-front roof and a square tower with a domed roof. An entrance is located in the center of the facade and is flanked by large windows composed of many small panes of glass. The original parsonage, built in 1729, is located north of the church and is a narrow two-story building with a side-gabled roof and long rear ell.

Built by Francis Tufts, a brickmaker, the Tufts House is a finely detailed example of a brick Federal-style house in a rural setting. The house is two stories with a side-gabled roof and chimneys on either end. The facade is symmetrically arranged with the entry in the center. The wood paneled door is framed by delicately carved woodwork and topped by a semi-oval fanlight. The windows contain double-hung sashes with numerous small panes. The cornice line of the roof is finished with dentil molding.