Our people

Justin Mendelle

Partner, Head of Construction

Justin is head of construction law and our adjudication advice team at Sharpe Pritchard. He advises a range of clients, including central government, local authorities, housing associations, developers, funders, project sponsors, consultants and charitable institutions. His practice spans construction projects, facilities and asset management, adjudicationPPP and PFI projects, procurement and procurement dispute resolution. Previous and current major projects include city centre redevelopments, major public sector outsourcing, housing regeneration schemes, major office and retail schemes, leisure and sports centres, waste treatment facilities, data centres and numerous private hospitals across the UK.

Justin is involved in the full spectrum of procurement and construction law, advising clients on both contentious and non-contentions matters. This includes advice on the full range of standard form building contracts, professional team appointments and partnering agreements, as well as adjudications on a wide variety of disputes, from extension of time and loss and expense claims to complicated contractual breaches. Justin is proud of a success rate of over 90% in such claims.

Justin is an acknowledged specialist in commercial contracts, the construction industry, procurement and dispute resolution.

He is a member of the Society of Construction Law, Technology and Construction Solicitors Association (TeCSA) and the Procurement Lawyers Association.

Justin also regularly lectures and runs training workshops on adjudication, JCT and NEC contracts, PPP/PFI models, EU procurement (including competitive dialogue) and dispute resolution (with a focus on adjudication).

Justin is responsible for the development of our dedicated microsite on adjudication advice for construction disputes


Joined Sharpe Pritchard

Previous Employment
SJ Berwin, Macfarlanes


Related news

Recent work

  • Leading the team on two competitive dialogue procurements for housing associations in London for strategic maintenance contracts, together worth in excess of £350 million;
  • Advising a public sector client on major first-generation outsourcing with an overall contract value in excess of £250 million;
  • Successfully defending an employer in a construction adjudication in relation to an extension of time claim and related loss and expense claim;
  • Successfully representing an employer in an arbitration in relation to a delay claim;
  • Leading the team advising a bidder on a major central government national outsourcing procurement;
  • Advising on a high profile and complex regeneration scheme;
  • Leading the team on three separate facilities management competitive dialogue procurements;
  • Leading the construction team on a host of residual waste treatment facilities, with a combined capital value in excess of £1.5 billion.


What others say

Head of construction Justin Mendelle has “a strong public sector practice and advises clients on both contentious and non-contentious matters.”
Chambers and Partners UK 2017.

Justin Mendelle "gives strong all-round advice, has a clear strategic view of the issues and is tactically sound in his approach."
Chambers and Partners UK 2017.

"... is able to break down complex legal issues into a jargon-free easy to understand way,
Chambers and Partners 2016.

Justin Mendelle is a “first-class negotiator”. 
Legal 500 2016.

"Justin Mendelle extremely knowledgeable and gives excellent presentations at board level" Legal 500 2016.

"... is able to break down complex legal issues into a jargon-free easy to understand way," Chambers and Partners 2016.

Justin Mendelle is an exceptional lawyer with a razor sharp brain
Milton Keynes.

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