Gary is an experienced advocate at appellate and first instance levels in all aspects of real property law with particular emphasis on complex issues arising from commercial development, especially adverse possession, restrictive covenants and easements. Gary also specialises in complex mortgage disputes, leasehold enfranchisement and commonhold work. Most recently, he has appeared in two high-profile restrictive covenant cases concerning property at Falmouth Docks and in Berkeley Square.
Gary’s recent High Court work includes cases concerning the surrender of leasehold interests without the consent of a mortgagee, the extent to which a landlord can insist upon a topping up of a rent deposit upon tenant administration to cover rent losses flowing from dilapidations and whether premises demised included the airspace required to construct an extra storey on a block of flats.
"Gary Cowen KC frequently advises on complex litigation and has a great deal of experience in the Court of Appeal. Real estate forms the core of his chancery practice and he has notable experience in restrictive covenants, leasehold enfranchisement and business tenancies."Chambers and Partners UK Bar Guide 2025 (Real Estate Litigation)
"Gary Cowen is a brilliant advocate with sharp legal acumen."Chambers and Partners UK Bar Guide 2025 (Real Estate Litigation)
"Gary is quite simply superb. He is excellent with clients, a shrewd adviser and a deftly skilled advocate who will make the best of any case."Chambers and Partners UK Bar Guide 2025 (Real Estate Litigation)
"Gary is a superb advocate who is deceptively cunning, thorough and tenacious." Chambers and Partners UK Bar Guide 2025 (Real Estate Litigation)
"Gary brings a calm and measured approach to everything, simplifying complex legal principles effortlessly."Chambers and Partners UK Bar Guide 2025 (Real Estate Litigation)
"Gary has a very good advocacy style. He is very clear, very sensible and argues well in court."Chambers and Partners UK Bar Guide 2025 (Real Estate Litigation)
"Gary is superb. His advocacy is extremely canny: unflashy but also shrewd and unflinching."Legal 500 UK Bar Guide 2025
"Gary is very good indeed. He is able to make simple the most complex cases, and is a highly skilled advocate adept at landing carefully considered blows."
"Gary is very assured and technically excellent."
"Gary prides himself on taking a pragmatic and straightforward approach which always cuts through the legal issues and allows parties to focus on the commercial legal points to achieve a good workable solution."
"Gary's legal and commercial acumen is second to none, which gave us every confidence in his advice and ability to deliver results."Chambers and Partners UK Bar Guide 2024 (Real Estate Litigation)
‘Gary is exceptionally calm and warm in manner, which masks a ferocious intellect and sharp advocacy skills. He is particularly good at making killer points gently and unobtrusively, but very effectively.’Legal 500 UK Bar Guide 2024More published comments