House at 305 E. Ashley

The German Builder's House is a historic house at 315 East Central Street in Siloam Springs, Arkansas. It is a two-story brick I-house, with a side gable roof and a rear wood-frame addition, giving it an overall T shape. A porch with open veranda above spans most of the width of the main facade, with Queen Anne style turned posts and balusters, and a spindled frieze. The house was built c. 1880 by German masons from St. Louis who were working on a nearby school building. It is one of the finest brick I-houses in Benton County.The house was listed on the National Register of Historic Places in 1988.

The Stockton Building is a historic commercial building at 113 North Broadway in downtown Siloam Springs, Arkansas. It is a two-story masonry structure with a pressed metal cornice that is horizontal at the outer bays and with a gabled pediment at the center. Built in 1894, it is a distinctive yet vernacular example of late 19th-century commercial architecture, unique in the city.The building was listed on the National Register of Historic Places in 1988.

The Bratt-Smiley House is a historic house at University Street and Broadway in Siloam Springs, Arkansas.

The Connelly-Harrington House is a historic house at 115 East University Street in Siloam Springs, Arkansas. It is an architecturally eclectic two story brick structure, exhibiting elements of Prairie Style, Classical Revival, and Craftsman architecture. The house was built c. 1913 for a prominent local banker, and has since served as a hospital and as the offices of the local chamber of commerce.The house was listed on the National Register of Historic Places in 1988.

The First National Bank is a historic commercial building at 109 East University Street in Siloam Springs, Arkansas. It is a two-story brick building, trimmed in stone. Its ground floor is recessed in an arcade supported by square posts, and is separated from the second floor by a stone belt course. The upper floor windows have round stone arches, with two narrow bays projecting slightly. The cornice has corbelled brickwork, and is topped in a few places by stone caps. The building is Siloam Springs' only significant example of Romanesque Revival architecture.The building was listed on the National Register of Historic Places in 1988.

Siloam Springs is a city in Benton County, Arkansas, United States, and located on the western edge of the Northwest Arkansas metropolitan area. As of the 2020 census, the population of the city was 17,287. The community was founded in 1882 and was characterized by the purported healing powers of the spring water feeding Sager Creek and trading with nearby Native American tribes. The city shares a border on the Arkansas–Oklahoma state line with the city of West Siloam Springs, Oklahoma, which is within the Cherokee Nation territory. It is home of John Brown University.

The Henry Furniture Store Building is a historic commercial building at 107 West University in Siloam Springs, Arkansas. It is a single-story brick building, with an angled recessed storefront topped by a raised brick parapet set above brick corbelling and a pressed metal cornice. Built c. 1900, it is the best example in the city of commercial architecture from that time period.The building was listed on the National Register of Historic Places in 1994.

The Crown Hotel, formerly the Lakeside Hotel is a historic hotel building at 119 West University Street in Siloam Springs, Arkansas. It is a two-story brick building in an L shape, with a hip roof topped by a low cupola. It is distinguished by the brickwork at the roofline, and by the delicately spindled two-story porch that wraps around two sides of the building. Built in 1881, just one year after the city's founding, it is one of the city's oldest commercial buildings, and may have been its first brick hotel.The building was listed on the National Register of Historic Places in 1979.

The Fred Bartell House is a historic house at 324 East Twin Springs Street in Siloam Springs, Arkansas. Built c. 1900, it is a 2+1⁄2-story wood-frame structure, with asymmetrical massing typical of the Queen Anne style. It has a low octagonal turret at the front left, and a porch, supported by Tuscan columns mounted on a lattice of concrete blocks that form a low balustrade. The house is clad in novelty siding.The house was listed on the National Register of Historic Places in 1988.

The Grand Army of the Republic Memorial is a monument in Twin Springs Park of Siloam Springs, Arkansas. Located in the southern part of the park, it consists of a concrete foundation, on which rest two tiers of granite slabs, laid horizontally. These are topped by a vertical granite column that has an onion form at the top. The sides of the horizontal slabs are rusticated, as are three sides of the column. The fourth side is engraved, from the top down, with an inverted five-point star labelled "GAR", then the words "IN GOD WE TRUST", then a Maltese cross engraved "WOMEN'S RELIEF CORPS 1833", then "ERECTED BY/CURTIS POST/1928", and finally a wreath topped by an eagle and crossed cannons, with "US" in the center surrounded by "PRESERVED BY THE GRACE OF GOD". The memorial was placed in 1928, and is the only known memorial statewide to mention the Grand Army's Women's Relief Corps.The monument was listed on the National Register of Historic Places in 1996.

The Duckworth-Williams House is a historic house at 103 South College Street in Siloam Springs, Arkansas. It is a two-story stuccoed brick building, with a side gable roof that has a wide shed-roof dormer on the front. The roof extends across the front porch, which is supported by four stuccoed brick columns. The side walls of the house have half-timbered stucco finish. Built c. 1910, this is the only Tudor Revival house in Siloam Springs.The house was listed on the National Register of Historic Places in 1988.

The Quell House is a historic house at 222 South Wright Street in Siloam Springs, Arkansas. It is a 1+1⁄2-story Craftsman bungalow with a shallow-pitch side gable roof, and a front gabled porch extending across the front which is supported by stuccoed piers. The gables have deep eaves and exposed rafter ends. The walls are finished in stucco that had a gravel-like material thrown against it while wet, giving it a rough and textured surface. Built c. 1920, it is a fine local example of the Craftsman/bungalow style.The house was listed on the National Register of Historic Places in 1988.