Key facts:

Client: The Mayor and Commonalty and Citizens of the City Of London

Main contractor: Lowe & Oliver

Value: £130,000

Start date: July 2017

Completion date: August 2017

Mansion House is the official residence of the Lord Mayor of London. It is a Grade I listed building.

It is used for some of the City of London's official functions, including two annual white tie dinners.

Mansion House was built between 1739 and 1752, in the then fashionable Palladian style by the surveyor and architect George Dance the Elder. The site, at the east end of Poultry, had previously been occupied by the "Stocks Market", which by the time of its closure was mostly used for the sale of herbs. The construction was prompted by a wish to put an end to the inconvenient practice of lodging the Lord Mayor in one of the City Halls.

Mansion House is home to The Harold Samuel Collection of Dutch and Flemish Seventeenth Century Paintings, described as "the finest collection of such works to be formed in Britain this century" (Sutton 1992). It consists of 84 paintings and includes some outstanding works by artists including Hendrick Avercamp, Gerard Ter Borch, Pieter Claesz, Aelbert Cuyp, Frans Hals, Pieter de Hooch, Jacob van Ruisdael, Jan Steen, David Teniers the Younger and Willem van de Velde. Mansion House also houses a plate collection, which includes among other treasures, the five ceremonial City of London swords.

Lowe and Oliver undertook the complete replacement of the Main Electrical LV switch panel supplying the whole building as the Principle Contractor.

The works comprised of the design, supply, assembly, connections and testing of the new LV switch panel. Disconnection and removal of the existing outdated panel.

The entire project delivered on time, whilst accommodating the occupied building.