Yes, given the itinerary of the Wedding weekend, we recommend booking accommodation in advance for the Friday and Saturday evenings. We have listed various accommodation options close to St Giles House below and there are also other options available nearby (including some nice AirBnBs). If you're struggling to find something in the immediate area, the cities of Salisbury, Bournemouth and Poole are approximately a 30 minute drive from St Giles House.