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Aaron Walder

Call: 2002
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Practice Summary

Aaron was called to the Bar in 2002 and joined Landmark Chambers in 2006. He has an established specialist practice in all forms of Property Law, along with matters suitable for the Chancery Division such as Company Law and Insolvency. He is a member of the Attorney General’s ‘B’ Panel of Junior Counsel to the Crown (moving up to the ‘A’ panel on 1 September 2021), a qualified mediator, and has sat as a Deputy District Judge since 2010 (with special dispensation to hear insolvency and chancery cases). He is the current consultant editor to Halsbury’s Laws: Landlord and Tenant volumes.

Aaron has been recommended in Chambers & Partners as a leading junior in Real Estate Litigation for some years now, and is also consistently recommended by Legal 500 as a leading junior in Property Litigation.

He regularly advises on both commercial and residential landlord and tenant points. In his commercial landlord and tenant practice, he deals with all issues of forfeiture and possession, 1954 Act renewal of tenancies, dilapidations and compensation for improvements, and rent reviews and service charge provisions, for both landlords and tenants. He has also advised in cases involving agricultural land and is expanding this area of his practice.

In his residential practice he deals with issues relating to occupational status and tenure, disrepair and possession. He also advises on, and represents clients in the FTT (formerly LVT), County and High Court, and Court of Appeal in disputes relating to service charge and management disputes as well as all issues arising from enfranchisement and valuation.
He also advises and conducts litigation on numerous real property issues. His high profile and reported cases since arriving at Landmark include High Court and Court of Appeal cases on the law of adverse possession and cases on proprietary estoppel and constructive trusts. He is also experienced in various forms of boundary disputes, conveyancing, disputed title and the registration of land, and issues regarding easements and covenants.

Aaron has advised and appeared in, and has a special interest in, cases relating to the interpretation and enforceability of contracts generally, and especially those relating to sale and other transfers of interests in land, and the interpretation of clauses in leases.

As well as the Court of Appeal, the High Court and County Court, Aaron has appeared before various branches of the First Tier Tribunal (Property Chamber), the Upper Tribunal, and the Companies Court. Aaron also represents clients in both domestic and international arbitrations.

He is a member of the Chancery Bar Association, the Property Bar Association, the Association of Leasehold Enfranchisement Practitioners, and the Insolvency Lawyers Association.


Aaron obtained a First Class honours degree in law before being awarded a Trinity Hall research scholarship to read for his M.Phil at Trinity Hall, Cambridge. He was an Inner Temple major scholar.


2019 – Advisory Editor of The Encyclopaedia of Forms and Precedents, volume 38(1), 38(2) and 38(3) (Sale of Land, and Sale of Land: Commercial Property)

2018 – Consultant Editor of Halsbury’s Laws of England; volumes 62, 63 and 64 (the complete series of the Law of Landlord and Tenant)

2017 – Editor of Halsbury’s Laws of England; volume 68 (the law of Liens)

2013 – Editor of “Rent Review” for iSurv and RICS

2012 – Editor of “Commercial Tenancy Renewal” for iSurv and RICS


Aaron has been ranked as a leading junior in the fields of Real Estate Litigation and Property Litigation and Agriculture for a number of years now. Excerpts from the relevant directories state:

  • ‘Aaron has been excellent in absorbing a substantial amount of detail from a significant quantity of documents and distilling the issues down to a thoroughly pleaded case. ’ (Legal 500 2022)
  • He is a fantastic advocate, forensic in cross examination, clear and reassuring in submissions.’ (Legal 500 2021)
  • Clearly highly intelligent and has a thoughtful approach to work (Legal 500 2020)
  • Very bright and knowledgeable and doesn’t go down without a fight (Chambers & Partners 2018)
  • Gets to know the documents in depth and has a great retention of facts (Legal 500 2018)
  • He deals with things in a clear, concise and logical way (Chambers & Partners 2016)
  • Operates in a sensible and pragmatic manner with advice tailored to the value of cases and their prospects (Legal 500 2016)


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