Hertfordshire
Meryton: Lacock
Longbourn (the Bennets' house): Luckington Court
Kent
Hunsford Parsonage (Mr. Collins' house): Teigh Old Rectory (Bed & Breakfast)
Rosings (residence of Lady Catherine de Bourgh): Belton House
Derbyshire
Pemberley (the outside): Lyme Park
Pemberley (the inside): Sudbury Hall
Lambton: Longnor
Other
London streets: Lord Leycester Hospital (?)
Ramsgate: Weston-super-Mare