More than a dozen post-war office buildings across England have been given grade II-listed status, although no Swindon buildings have been chosen.

The move to give legal protection to 14 "remarkable" office blocks in English towns and cities comes after a project by heritage body English Heritage to assess commercial buildings dating from 1964 to 1984.

English Heritage said the additions to the National Heritage List for England recognised the work of leading modern architects, who responded to "radical changes" in how people in offices work.

Swindon does have 190 listed buildings, including a grade I church, a grade I mansion house and eight grade II* buildings. One of the more unusual listings is of the 1935 Art Deco-style Coate Water Diving Platform, made to a design by Swindon borough surveyor JBL Thompson.

It has been grade II listed partly because it is one of only four inter-war concrete diving platforms known to survive in England.

The latest English Heritage list includes buildings such as 30 Cannon Street in the City of London, Bank House in Leeds and the IBM Pilot Head Office in Cosham, Hampshire, which was designed by Foster Associates.

Also given listed status is Civil Aviation Authority House - formerly Space House - in London, designed by George Marsh of Richard Seifert & Partners, who also designed the already-listed Centre Point building.

The "hanging gardens of Basingstoke" - Mountbatten House and its roof gardens in Basingstoke - which were designed by Arup and Associates - have both been listed, with the gardens given grade II status on the register of parks and gardens.

Roger Bowdler, director of designation at English Heritage, said: "These offices show how architecture has adapted to recent radical changes in how we work: they show how the open-plan working space for computer-led work came about, and how architects responded to the need for lettable, attractive spaces with ingenuity and a deep understanding of human needs.

"Our project has aimed to deliver certainty for owners, while adding to the range of those key buildings which are protected by law.

"These are all remarkable designs, capable of years of commercially vibrant use. The project has been notable for its extensive research, and for close dialogue."

The buildings were listed by the Culture Secretary after recommendations made by English Heritage to the Department for Culture, Media and Sport (DCMS). A number of other buildings, including London's Tower 42, known as the NatWest Tower, were assessed, but not recommended for listing.

Heritage minister Ed Vaizey said: "Listed buildings are not just about historic houses and ancient monuments, they also serve to protect our recent heritage and preserve the best examples of our fantastic architecture.

"This group of listings reflect the changing face of our working environment and represent the very best in design and it's entirely right that they be listed grade II."