Located close to the A1 the hotel is a perfect base to visit many local places of interest including Knebworth Park, with its house, beautiful gardens and parklands. 5 minutes from A1M junction. 20 minutes from London.. Olivers Restaurant.. This Hotel is a Totally Non Smoking Facility. Once a farm house and home to John Thurloe, secretary to Oliver Cromwell, this attractive hotel has a contemporary and stylish decor which complements the features of former times, whilst providing modern comforts. . The hotel boasts a purpose built conference centre and large banqueting suite, suitable for banqueting functions and weddings. The Cromwell also holds a civil ceremony license so you will be able to enjoy the whole day in one location. Conferencing for up to 200 people. Complimentary gym passes for residents. Complimentary WI-FI for residents and conference/meeting delegates. Parking is on-site and complimentary for up to 70 cars - no valet parking..