St. Mark's Church, Hamilton Terrace

This Gothic style church by Thomas Cundy was consecrated in 1847. The architect's son Thomas Cundy II finished the spire in 1864. E.B. Ferrey also added a new chancel in 1878.

The Venice and Murano Mosaic Company made the six mosaic panels for the pulpit around 1879. They depict the Four Evangelists flanking Sts. Peter and Paul.

Sources:
The Builder. July 26, 1879. 842.
Speel, Bob. St. Mark's Hamilton Terrace - A Church with Mosaics. 
"Church of St. Mark, Hamilton Terrace". English Heritage.
Images of England: Church of St. Mark Hamilton Terrace. English Heritage.

Grand Hotel, Trafalgar Square

London's Grand Hotel was designed by F & H Francis and James Ebenezer Saunders. This team also designed London's Metropole Hotel in 1883.

Salviati decorated the six-story, Italianate hotel, which opened in Trafalgar Square in 1880 with mosaic work.

Circa 1910

The original building was taken over by the British government in World War I to house military officers.  By 1972, not only had the stone facade weathered, but the whole building was damaged by the new Jubilee subway line. It was demolished in 1986 and replaced with the similarly styled Grand Buildings (housing the current Grand Hotel) designed by Sidell Gibson Partnership.

Sources:
"Earthenware and Porcelain: No. VIII Mosaic Work and Stone-ware." The Furniture Gazette. July 10, 1880. 18.
Antique Print of the Opening of the Grand Hotel. Amazon.
Vintage Everyday. July 4, 2014. 
Exhibition of the Royal Academy. 1878. 44.
Royal Institute of British Architects. Riba1680 Grand Hotel, Charing Cross, London. 1879.
Calder, I.C. "Grand Buildings, Trafalgar Square, London WC2." Proceedings of the ICE - Civil Engineering, Volume 97, Issue 3, 01 August 1993, pages 127 –134.
Hotel Metropole, St. Croix Architecture.

Marquess of Westminster Memorial Fountain

The Italian Renaissance-style memorial to Richard Grosvenor, 2nd Marquess of Westminster stands at the junction of Pimlico Road and Avery Farm Row in London. Grosvenor was a politician and developer who - before his death in 1869 - was an early patron of Chester architect John Douglas.

Erected around 1870, the four faces of the Portland stone and granite drinking fountain are covered by enamel mosaics by Salviati.

 
Salviati also made the mosaic reredos for the Douglas designed St. John's Church in Aldford, tying it back to Grosvenor through that additional connection.

Sources:
Introduction to Victorian and Edwardian Architectural Mosaics in London
"Drinking Fountain - geograph.org.uk - 1305384" by PAUL FARMER. Licensed under CC BY-SA 2.0 via Wikimedia Commons
"Fountain on East Side of Junction with Avery Farm Row". National Heritage List for England. English Heritage.
"Richard Grosvenor." Wikipedia.