Leiston on Wikipedia.
 

All Saints (R.C.) is on Aldeburgh Road and Seaward Avenue. Streetview saw it in 2021. TM 4462 6220. Link1. Link2.

The Baptist Church is on John Street, and was seen by Streetview in 2009. Link.

A Friends' (Quaker) Meeting House stands on Waterloo Avenue. It was seen by Streetview in 2009. A better photo is available on the Quaker website. TM 4429 6260. Grade II listed, wherein it's dated to 1860.

The Kingdom Hall of Jehovah's Witnesses on Carr Avenue, as seen by Streetview in 2010.

The 25" O.S. map of 1904 shows a Mission Room on Dinsdale Road at TM 4442 6270. Not indicated on the 1" O.S. map of 1956, it has evidently been demolished. Streetview shows the site in 2009.

The cemetery on Saxmundham Road has a Mortuary Chapel. TM 4349 6290. © Richard Roberts (2024).

St. Margaret of Antioch. The church website dates the church to 1854. TM 4387 6250. © Judith Anderson (2005). Link. Grade II* listed. For other listed features associated with the church, see here.

The ruins of St. Mary's Abbey (Premonstratensian), from an old postcard in Christopher Skottowe's Collection. TM 4448 6417. Link. Grade I listed.

United Church (Methodist and U.R.C.) on High Street is labelled on older maps as Congregational. Genuki dates it to 1858. It was seen by Streetview in 2009. TM 4453 6251.

A United Free Methodist Chapel is shown on old O.S. maps on Prospect Place at TM 4462 6269. Genuki provides dates of "...founded before 1904. It closed before 1945". Seen by Streetview in 2009, it appears to now be in residential use.

A former Wesleyan Methodist Chapel stands off Valley Road at TM 4453 6273. Genuki dates it to 1848, with closure "before 1970". Streetview saw it 2009.

The 1:25,000 O.S. map of 1956 marks a place of worship on Kings Road, at TM 4449 6217. Two houses now stand on the site, seen here by Streetview in 2009. It was possibly the Baptist Mission Hall mentioned here.