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Karen Mayne

high value property solicitor
Partner, Head of Property

7th Floor, 85 Fleet Street
London EC4Y 1AE

Tel: 020 7227 7273

Karen is a Partner and Head of Property. She specialises in the purchase, sale, letting, ownership and management of residential property for owner occupation, investment and development by UK or off-shore clients.

Karen advises on the full range of property matters, and has a particular interest in financing of and secured lending on residential property, lettings, individual and collective enfranchisement.

Karen’s clients include landed estates, high-net worth owners, occupiers, investors and property companies.

Karen qualified in 1984.

‘Group head Karen Mayne assists clients with enfranchisement work, and she is also skilled in residential property financing and letting.’ Legal 500 2022

‘Led by Karen Mayne, the department is effective and prompt.’ Legal 500 2021

Karen Mayne has particular expertise in residential property purchases, sales and lettings. Other core strengths… include individual and collective enfranchisement and property-related financing and secured lending. Legal 500 2019

RadcliffesLeBrasseur’s practice head Karen Mayne handles the purchase, sale, letting, ownership and management of residential properties… Leasehold enfranchisement work is also a key strength for the group. Legal 500 2017


Some of Karen’s recent work includes:

  • Acting in connection with the sale and purchase of residential properties with transaction values of £15-25 million for high net worth individuals, some of whom are non-domiciled
  • Advising on first registration of an unregistered ransom strip without evidence of title and to protect the amenity of a major country house
  • Advising on the prospective purchase of a rural estate, including various residential units all of which had been altered substantially without requisite planning or building regulation consents
  • Representing various institutional landlords on a variety of matters, including the restructuring of freehold and leasehold interests in a Central London mixed use block of flats and tenants’ application for collective enfranchisement
  • Advising the Church Commissioners on applications for flat lease extensions, purchase of house freeholds and collective enfranchisement
  • Acting for a historic London club on sale of part of its premises for residential development


The Law Society
Association of Women Solicitors