| Oakham Castle |
|
Map |
Oakham, Leicestershire
Owner: Rutland County Council |
|
Tel: 01572 758440 |
 Oakhurst Cottage |
|
Map |
Godalming, Surrey
Owner: The National Trust |
|
Tel: 01428 684090 |
| Octavia Hill's Birthplace House |
|
Map |
Wisbech, Cambridgeshire
Owner: Octavia Hill Birthplace Museum Trust |
|
Tel: 01945 476358 |
 Okehampton Castle |
|
Map |
Okehampton, Devon
Owner: English Heritage |
|
Tel: 01837 52844 |
| Old Campden House |
|
Map |
Chipping Campden, Gloucestershire
Owner: The Landmark Trust |
|
Tel: 01628 825920 |
| Old Sarum |
|
Map |
Salisbury, Wiltshire
Owner: English Heritage |
|
Tel: 01722 335398 |
| Old Soar Manor |
|
Map |
Borough Green, Kent
Owner: The National Trust |
|
Tel: 01732 810378 |
| Old Town Hall |
|
Map |
Newtown, Isle of Wight
Owner: The National Trust |
|
Tel: 01983 531785 |
 The Old Vicarage at Elkesley |
|
Map |
Retford, Nottinghamshire
Owner: Private Ownership |
|
Tel: 01777 838522 |
| Old Wardour Castle |
|
Map |
Tisbury, Wiltshire
Owner: English Heritage |
|
Tel: 01747 870487 |
| Orford Castle |
|
Map |
Woodbridge, Suffolk
Owner: English Heritage |
|
Tel: 01394 450472 |
| Ormesby Hall |
|
Map |
Ormesby, Yorkshire
Owner: The National Trust |
|
Tel: 01642 324188 |
| Osborne House |
|
Map |
East Cowes, Isle of Wight
Owner: English Heritage |
|
Tel: 01983 200022 |
| Osterley Park |
|
Map |
Isleworth, London
Owner: The National Trust |
|
Tel: 020 8232 5050 |
| Otley Hall |
|
Map |
Ipswich, Suffolk
Owner: Private Ownership |
|
Tel: 01473 890264 |
| Overbecks Museum & Garden |
|
Map |
Salcombe, Devon
Owner: The National Trust |
|
Tel: 01548 842893 |
| Owlpen Manor |
|
Map |
Uley, Gloucestershire
Owner: Private Ownership |
|
Tel: 01453 860261 |
| Oxburgh Hall, Gardens & Estate |
|
Map |
King's Lynn, Norfolk
Owner: The National Trust |
|
Tel: 01366 328258 |
 Oxwich Castle |
|
Map |
Oxwich, South Wales
Owner: Cadw |
|
Tel: 01792 390359 |
