Guildford /ËÉ¡ÉªlfÉrd/ is the historic county town of Surrey, England and the seat of the borough of Guildford.The town is 27 miles (43 km) southwest of central London on the A3 trunk road mid-way between the capital and Portsmouth.uildford /ËÉ¡ÉªlfÉrd/ is the historic county town of Surrey, England and the seat of the borough of Guildford.