The first ruined church in Treyford is the old Church of St Mary, which mainly dated from the 13th century, but which was allowed to fall into disrepair. The church is sited in a copse on a mound near the Manor House. English Heritage recently made a grant to allow preservation work to take place at St Mary's.
The original church was allowed to rot because it was replaced in the 1840s with a magnificent new church - St Peter's.
St Peter's Church, Treyford was one of several downland churches to have been given the title 'the Cathedral of the Downs'. Unfortunately it lasted a fraction longer than 100 years before it was demolished. The building had become unsafe.
Treyford Manor House is a noteworthy large house built at the end of the 18th century - it looks more like a grand town house than anything else seen in this part of West Sussex.
Treyford is also notable for the Devil's Jumps, a group of large tumuli on Phillis Down a few yards from the South Downs Way, near Monkton House.
The Devils Jumps are a Bronze Age cemetery. Together they form the largest linear barrow formation in West Sussex and they seem to be aligned with the direction of the sunset on midsummer day.
The Devils Jumps are 3,000 years old and were first excavated by the Victorians, who found bones in two of the largest barrows.
- Bognor Regis
- Burgess Hill
- East Grinstead
- Haywards Heath
- East Harting
- East Marden
- North Marden
- South Harting
- West Dean
- West Stoke