Corn Exchange - Market Place
Erected in 1856 – the iron arches were cast by Wilder’s - it ran a weekly corn market. The building operated as a grain exchange until the First World War. It was occasionally used as a cinema, boxing arena, auction room and theatre after that. After the Second World War it was used as a food office, and also an unemployment office and for the Social Security Ministry. The derelict building was purchased by the Sinodun Players in 1975 and converted into a modern theatre and cinema.
http://www.cornexchange.org.uk/PublicPages/
http://www.imagesofengland.org.uk/search/details.aspx?pid=1&id=249274

Fish Street Foundry - 36 St Mary's Street and Mill Lane
This was the first of Wilder's foundries in Walingford. The building used to belong to the Corporation of Wallingford, and William Hilliard leased it from them, and then let it to Leonard Wilder. His son Richard Wilder later bought the property and then the area behind. The Maharajah's Well elephant and the roof trusses of the Corn Exchange were cast here. The foundry shop is now Louise Claire Millinery, while the forge is now a private house. The shop has a weather vane on the roof, and a street sign still bearing the Fish Street address.
http://www.imagesofengland.org.uk/search/details.aspx?pid=1&id=249322

Flint House (Wallingford Museum) - High Street
This is has a 17th century flinted exterior, with a timber-framed structure, possibly of late 15th century, and is believed to have been owned by Richard Norreys.
http://www.imagesofengland.org.uk/search/details.aspx?pid=1&id=249255

St John's Cottage and St John's House - St John's Road
Parts of a large building from the early 16th century building. St John's Cottage has a 19th century exterior.
http://www.imagesofengland.org.uk/search/details.aspx?pid=1&id=249290
http://www.imagesofengland.org.uk/search/details.aspx?pid=1&id=249289

St Lucian's - St Lucian's Lane
This early 16th century private house (home to the Wilder family), previously known as Wharf House, was described by architecture critic Nikolaus Pevsner as "the most interesting house in Wallingford". It has tall chimneys and mulleined windows. It was built during the reign of Henry VIII. It was briefly used as a school (Lower Wharf Academy).
http://www.imagesofengland.org.uk/search/details.aspx?pid=1&id=249268

Tudor houses in the High Street, Calleva House and St Lucian's

Stone Hall - High Street
This private house was built for Edward Wells, brewer, who later became an MP. Wallingford mayor Thomas Greenwood is thought to have refronted the 18th century building around 1820.
http://www.imagesofengland.org.uk/search/details.aspx?pid=1&id=249256

Wallingford Town Hall - Market square

Wallingford Town Hall and Church of St. Mary-the-More, by Charles G. Harper from Thames Valley Villages (1910)

Wilder's New Foundry - Goldsmiths' Lane
This purpose-built foundry, built in 1869 for Richard Wilder's son, also Richard Wilder, supplemented the original Fish Street Foundry. It is now a series of flats.