Thornton Plantation

Pine Mountain, Harris County, Georgia Listed Ref. 04001212 Building
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Why it's listed

Thornton Plantation is a rural farm complex about seven miles west of Pine Mountain in Harris County, Georgia. It includes two houses, two family cemeteries and surrounding fields. The older house, built around 1850, is a two-story Greek Revival I-house with a full-height porch on six tapered square piers, a balcony with a sheaf-of-wheat balustrade, and an elaborate entrance with sidelights and transom. Much original material survives, including doors, mantels, floors and ceilings. A quarter mile north stands a vernacular farmhouse from about 1890, a Georgian Cottage with a central hall that grew through additions over nearly a century. Between and beside them lie the stone-walled Thornton Cemetery and the wire-fenced Mullins Cemetery, with rock markers and marble obelisks. The property was listed for its architecture and landscape design, and as the surviving core of a once large family farm that operated through 1954. Nearby land is now being turned into residential subdivisions.

Significance in brief: The nomination argues significance under Criterion C in architecture and landscape architecture. The Thornton-Williams House is a well-preserved central-hallway I-house, a relatively rare type in Georgia, with original materials and an elaborate balcony balustrade. The Swint-Hopkins House is a somewhat altered Georgian Cottage, and the stone-walled Thornton Cemetery and the Mullins Cemetery are good surviving examples of family cemetery design.

Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 04001212, listed October 29, 2004. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence high).

Key facts

Address702 Piedmont Lake Rd. and 404 Hopkins Farm rd., Pine Mountain
CountyHarris County
ListedOctober 29, 2004
Reference number04001212
Resource typeBuilding
Period of significanceC. 1850-1954
Architectural styleMid-19th Century/Greek Revival; Georgian Cottage type
Criteria
  • C — distinctive architecture, design or construction
Areas of significanceArchitecture, Landscape Architecture
Level of significanceLocal
Status (as stated in the nomination)Both houses are still used as single dwellings, and the cemeteries remain in place. The surrounding land is being developed for subdivisions, though hay and cattle farming continue.
Acreage137
Coordinates32.80912, -84.99639 (NPS GIS)

What listing means for this property

National Register listing is honorary for a privately owned home: it does not by itself restrict what an owner may do with their own money, and it does not require public access. Restrictions come from local landmark or historic-district ordinances, which are separate (how they differ).

Owner-occupied houses are not eligible for the 20% federal rehabilitation tax credit, which applies to income-producing buildings, but many states offer credits for homeowners. Listing also opens the door to preservation easements and to buying a plaque. Start with what listing means for homeowners, renovating a listed house and selling one.

General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.

Sources and further reading

Last updated October 2026. Found an error? See the editorial policy for how to report it.