Sussex Search Mandate

Interested in villages around Sussex and potentially extending into Surrey.
The family is in search of a detached, period property with a minimum of 5 bedrooms, a spacious garden, parking facilities, and a floor area of at least 5,000 sq ft. While they are open to some modernisation, they prefer to avoid full refurbishments.
Their ideal location should be within a 40-minute drive of Brighton College and conveniently close to a train line leading into London. They prefer a setting not overly rural, with access to local amenities within walking distance.
Their budget stands at £3M, although they are willing to stretch it for the perfect fit.