The small district of the City of Westminster called ‘Adelphi’ includes the streets of Adelphi Terrace, Robert Street and John Adam Street. It is named after the Adelphi Buildings, a block of 24 unified neo-classical terrace houses.


1-11 John Adam St, London WC2N 6HT


Grade II Listed building


Portland Stone

Surface area

6,675 sq. m.

Project duration

21 days

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Thomann-Hanry® were commissioned to clean The Adelphi Terrace in 2010 and were back in 2017 to work on the Art Deco elevation on John Adam Street.

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