Sedbury Park Mansion at golden hour
Property & Historical Association

Sedbury Park Mansion.

A Grade II listed 17th-century estate overlooking the River Severn, approximately 1.5 miles from Chepstow.

~9
Acres
40,000+
Sq ft
Grade II
Listed
1797
Origins

The estate comprises multiple buildings — including the principal mansion — with a combined floor area exceeding 40,000 square feet. The site is noted for its scale, privacy, and historical character.

Regarded as a historic property of architectural significance with potential for redevelopment, while retaining features associated with its earlier design and occupants.

Provenance

Two centuries, in the ledger.

  1. 1797

    Sir Henry Augustus Montagu Cosby acquires Barnes Farm, developing it as Barnesville Park after his service in India.

  2. 1822

    Following Cosby's death, the antiquarian George Ormerod purchases the estate and expands its grounds.

  3. 19thC

    Ormerod commissions Robert Smirke — architect of the British Museum — to remodel the house, adding a colonnade, portico, and an extension to house Ormerod's library. Renamed Sedbury Park.

  4. Late 19thC

    Sir William Henry Marling adds features including balustrades and a forecourt enclosure.

  5. Early 20thC

    Converted into a hotel.

  6. Later 20thC

    Operates as a school, then as a nursing home for approximately 30 years.

  7. Present

    Identified as the freeholder: Mark John Eckley.