Mercure Letchworth Hall Hotel Hotel for travelers looking for local and authentic experiences The elegant Mercure Letchworth Hall Hotel & Spa is a 4-star hotel like no other, set in a converted manor house among eight acres of picturesque grounds. Originally built in the 17th-century, the hotel still maintains many of its original features, including a glorious Jacobean fireplace that's ideal for relaxed evenings. Overlooking Letchworth Golf Club, the hotel boasts 87 modern en-suite bedrooms.