[10] Later in 1975, after the squatters were evicted, the terrace became the headquarters of British Land, a large property development company.
[6] In the 2000s, much of the terrace was refurbished by Oakmayne Developers, who turned 18 of the houses into 8 luxury residences.
The original design contained three main storeys, an attic storey, pavilions, mansards, and basements, as well as shallow porches, square headed doorways, shallow architraves, first floor cornices, balustraded parapets, wings with Venetian-style windows, cast iron balconies, and spearhead area railings.
[4] The interior consists of hardwood floors and doors, Italian marble, period fireplaces, cornices.
[3] Moza bint Nasser, the consort of a former Emir of Qatar bought numbers 1, 2 and 3 Cornwall Terrace in 2013 for an estimated £120 million.
[13] The following year, a planning application was made to merge the three properties into one 34,155 square foot home.
The refurbishment included marble floors, a £60,000 fireplace and a hydraulically operated lift.
[17] Since its refurbishment it is known as Siddons House after Mary Frances Scott-Siddons, who complained to the Prince Regent about the plans for Cornwall Terrace ruining her views of the park from Upper Baker Street.
It has a gym with spa, library, vault, five bedrooms, six reception rooms and staff quarters.
[20] Numbers 18 and 19 are owned by Vijay Mallya, who is subject to an extradition request by the Indian Government for various financial crimes.
[22] UBS Group AG pursued an order for possession in November 2018, seeking to evict Mallya, his son Sidhartha and his 95-year-old mother Lalitha Devi.
According to the terms of the agreement, Mallya can remain in the property and if the mortgage is not repaid by April 2020, UBS have a right to immediate possession.