Statement of Significance (as of designation - November 11, 1971):
The home (1772-87) of Thomas Stone, a signer of the Declaration of Independence for Maryland. A five-part brick and frame Georgian structure. (Central section burned and gutted in 1977.)

Condition:
The region is being developed dramatically, much of the proposed development is on historic Habre de Venture lands that are currently not within the park boundary. This development poses an imminent threat to viewsheds, historic resources, landscapes and soundscapes, and the ability to tell a complete story.

Reconstructed tobacco barn with original materials was destroyed in the April 2002 F-5 tornado. Although the main house (west wing, main block and east wing and hyphen), circulation patterns, burial ground and formal garden terraces are in good condition, the outlying structures are not. These structures include the destroyed tobacco barn, corn crib, tenant house, horse barn, cattle barn (destroyed), and sheep barn (ruin) and are suffering from severe physical deterioration due to weather and insect activity. Inappropriate alterations may also combine to compromise the integrity of the site.

Recommendation/Change since last report:
At the least, stabilization of all outlying structures is of greatest necessity. As the reconstructed tobacco barn was destroyed during the April 2002 severe weather event, consideration needs to be taken for reconstruction as original historic materials are being saved. The park has no estimated costs for all the work needing to bring the NHL into good condition. FMSS does not provide the information and other means sought for this information was not forthcoming with the needed data.