Robert Grose House

Dilworth House is a historic home located at Port Penn, New Castle County, Delaware. The earliest section of the house dates to the late-17th century. It was built in two sections; the west section being the oldest. It consists of two separate, 2+1⁄2-story brick sections, each three bays wide. The house features diapered brickwork. A frame rear wing was added in the second half of the 19th century. The Dilworth House is a rare surviving specimen of an early Delaware yeoman's house.It was listed on the National Register of Historic Places in 1973.

Ashton Historic District is a national historic district located near Port Penn, New Castle County, Delaware, United States. It encompasses six contributing buildings associated with an original settler and his immediate descendants on early land grant in St. Georges Hundred. The three structures associated with the early occupation are the Robert Ashton House, the Joseph Ashton House, and the John Ashton House. The Robert Ashton House, probably the earliest of the group, is a frame, five-bay, single-pile, gambrel-roofed building with shed-roofed dormers. The Joseph Ashton House, consists of an early-18th-century two-story, three-bay, hall-and-parlor-plan brick structure with a late-18th or early-19th century brick wing. The John Ashton House, consists of a brick, early-18th century two-story, three-bay, hall-and-parlor-plan house with a frame wing.It was listed on the National Register of Historic Places in 1978.

Port Penn is a census-designated place located in St. Georges Hundred, southern New Castle County, Delaware, United States, below the Chesapeake and Delaware Canal on the west bank of the Delaware River. Port Penn is home to the Port Penn Interpretive Center. Its population is estimated at 252.

Port Penn Historic District is a national historic district located at Port Penn, New Castle County, Delaware. It encompasses 48 contributing buildings and 5 contributing sites in the original eight block town plan and one block 19th century extension of Port Penn. The earliest building is the Dr. David Stewart House, dated to 1755. Notable buildings include the Bunlap, or Bendler House (1790s), the Cleaver-Hall House, Eaton House, Presbyterian Parsonage, T. Cleaver House, S. Carpenter House (bef. 1830), Port Penn School, "Linden Hall" (late 1840s ), Commodore's House, Jackson House (c. 1810), Presbyterian Church, Joseph Cleaver House (c. 1835), and St. Daniel's Methodist Church.It was listed on the National Register of Historic Places in 1978.

Augustine Beach Hotel is a historic hotel located at Augustine Beach near Port Penn, New Castle County, Delaware. It was erected about 1814, and is a two-story, six bay by three bay, brick building with a gable roof. It has a hipped roof porch and a five bay, shed-roofed brick dependency. Its peak period of use was between about 1870 and 1920. The Hotel derives its name from one of the most colorful of Delaware's early inhabitants, Augustine Herrmann.It was listed on the National Register of Historic Places in 1973.

Cleaver House is a historic house and farm located to the west of Port Penn, New Castle County, Delaware, about one mile east of US 13 and Biddles Corner. The house was built about 1816, and is a two-story, seven-bay, gable-roofed farm dwelling built in three different sections. The three bay, center brick section is the oldest. Attached to the east is a two bay brick section, making it a five bay center hall dwelling, and to the west a 1+1⁄2-story frame kitchen wing. The house measures 61 feet long by 17 feet wide. Also on the property are a contributing frame barn with attached carriage shed and milk house.It was listed on the National Register of Historic Places in 1985.Joseph Cleaver, a relative of the residents and possible owner of the farm, was a grain merchant in Port Penn. His residence there, also known as the Cleaver House, is a contributing property in the Port Penn Historic District.

Augustine Beach is an unincorporated community in New Castle County, Delaware, United States. Augustine Beach is located on the west bank of the Delaware River along Delaware Route 9, northeast of Odessa.

Hazel Glen was a historic home located near Port Penn, New Castle County, Delaware. It was built about 1859, and was a three-story, five-bay, L-shaped brick dwelling with a brick rear wing. It had a low-hipped roof (once surmounted by a cupola, three-story porches, projecting eaves, and a simple box cornice in the Italianate-Revival style. It featured a three-bay front entry porch with a flat roof supported by fluted Ionic columns.It was listed on the National Register of Historic Places in 1978. It was demolished sometime before 1991.

Augustine Creek is a 4.54 mi (7.31 km) long tributary of Delaware Bay in New Castle County, Delaware. Augustine Creek is tidal for most of its course.

The Baker Shoal Range Front Light was a lighthouse in Delaware, United States, on the Delaware River at Port Penn.

Reedy Island is a small island in the middle of the channel of the Delaware River near its mouth on the Delaware Bay in the U.S. state of Delaware. It is located approximately one mile (1.6 km) east of Port Penn, Delaware and five miles (8.0 km) southwest of Salem, New Jersey. The island was the location of Reedy Island Range Front Light and the Reedy Island Quarantine Station. The Reedy Island Range Rear Light, in nearby Taylors Bridge, is a historic lighthouse first established in 1910. The light is operated by the United States Coast Guard. The nearby keeper's house was destroyed in 2002.

Windsor, also known as Annondale, is a historic home located near Port Penn in New Castle County, Delaware, USA. It was built about 1760, and is a two-story, five-bay, gable-roof, brick building with interior brick chimneys at each gable end. It has a center-passage plan with overall dimensions of 45 feet wide by 19 feet deep. A two-story, wood-frame kitchen wing abuts the rear of the main house. The front facade features a hipped-roof frame porch added in the late-19th century. It is in the Federal style.It was listed on the National Register of Historic Places in 1992.