
St John's Seminary, Wonersh
Cranleigh Road, Wonersh, SURREY, GU5 0QU, UK
18,21 ha
JLL presents a significant freehold residential development opportunity in Potters Bar, Hertfordshire, extending to approximately 17.4 hectares (43 acres) of predominantly open land on the southern edge of Potters Bar.
Development Potential
The property is draft allocated in Hertsmere Borough Council's emerging Local Plan for approximately 260 residential dwellings, with feasibility studies identifying capacity for up to 300 dwellings. An indicative scheme demonstrates 299 new homes, predominantly family accommodation with 2, 3, and 4-bedroom houses forming over 80% of total units.
Location & Connectivity
The site sits within 1 mile of Potters Bar Railway Station, providing direct services to London King's Cross in approximately 20 minutes. The M25 motorway (Junction 24) lies just 0.5 miles away, offering swift access to the national road network and Central London.
Strong Policy Support
The site has been designated as 'grey belt' land, providing a clear policy route for residential development subject to NPPF "Golden Rules", including 50% affordable housing. Hertsmere faces acute housing need with only 0.98 years housing land supply and a Housing Delivery Test result of 26%, engaging the presumption in favour of sustainable development.
Site Characteristics
Currently undeveloped with predominantly flat topography, the site features mature tree screening along boundaries. Two potential access points are available via Southgate Road and Park Avenue. The site lies within Flood Zone 1 with no major physical constraints or heritage designations.
The Opportunity
This represents a rare large-scale residential opportunity in Hertfordshire, combining strong policy support, critical housing need, excellent connectivity, and substantial development capacity. The property is offered freehold by informal tender by the London Borough of Enfield.


