• Office
  • Faviell House
  • 1 Coval Wells
  • Chelmsford
  • Essex
  • CM1 1WZ
  • Tel: 01245 453800

The Legal 500 - The Clients Guide to Law Firms  The Legal 500 - The Clients Guide to Law Firms  The Legal 500 - The Clients Guide to Law Firms

Peter Allen

Partner, Head of Commercial Department

I am the Head of the Commercial Department and Head of the Construction team. I am easily accessible, and available to assist at short notice. I am able to give expert advice in many different areas of law. I am based in our Chelmsford office, and am available for a free 15 minute chat 

I provide clear commercial advice and am an expert in commercial litigation. I deal with claims in the Commercial Court, Technology and Construction Court, High Court and County Court. I advise on contract disputes, including sales of goods and services, and also on partnership and shareholder disputes, professional negligence claims, breach of warranty claims, claims arising from the sale of businesses and other business disputes.

I give expert advice in construction law. I advise on project documentation, such as JCT Contracts, NEC Contracts, other main contracts, subcontracts, professional appointments, collateral warranties, guarantees and bonds. I also advise on construction disputes such as non-payment, extensions of time, loss and expense, defects, breaches of contract and negligence. I deal with these claims in adjudication, court proceedings, arbitration and mediation.

I am a member of the Society of Construction Law, member of TeSCA (The Technology and Construction Solicitors Association), a member of the Notaries Society and ADR Group Accredited Mediator.

When I am not in the office, I can be found enjoying a glass of red wine or enjoying sport, in particular cycling, tennis and rugby. I am also a Bonsai tree enthusiast.


  • LLB Hons Degree
  • Post Graduate Diploma in Notarial Studies from University of Cambridge
  • ADR Group Accredited Civil and Commercial Mediator
  • Member of Society of Construction Law, member of the TeSCA (Technology and Construction Solicitors Association)
  • Member of the Notaries Society

Dispute Resolution team

The Dispute Resolution team adds value by ensuring that time is taken at the outset of a matter to understand a client’s specific objectives, and then giving clear, practical advice tailored to that client’s particular circumstances and objectives.

We provide a personal, attentive service, offering good availability and speed of response. We are informal where appropriate, whilst always professional. We have great strength and depth in numbers, with a wide range of experience, enabling clients and their issues to be matched to the most appropriate lawyer. We have lawyers who are true specialists in their chosen fields. We offer flexible funding arrangements, we enjoy excellent relations with assorted leading barristers’ chambers, enabling us to secure the most appropriate counsel on the best possible terms for our clients.

What our clients say

  • Head of department Peter Allen is commended by clients for his particular expertise in contracts and "detailed explanation of options." His contentious work is of particular note.
  • The firm provides 'sensible and realistic advice' to its corporate clients and is routinely instructed on high-value and complex dispute claims.The Legal 500
  • Head of team Peter Allen, noted for his 'keen interest in getting a favourable result'.The Legal 500
  • Tracey Dickens, David Wisbey and Peter Allen give a first-class service. They have a knowledgeable and pragmatic approach that focuses on getting things done.Client testimonial from the Legal 500
  • Practice head Peter Allen is 'calm and reassuring'.
  • Birkett Long LLP's 'excellent' team has a huge knowledge of processes and procedure and is always able to provide efficient contribution to problems.The Legal 500
  • We are very happy that this matter is now concluded and would like to take this opportunity of thanking you for all your guidance and expertise throughout the last 18 months.
  • Thank you for a most beautifully presented piece of work - in fact it is a work of art, and so professional. Your services are much appreciated.
  • Peter Allen and Keith Songhurst are recommended for their deep insight in contractual disputes and property litigation respectively.The Legal 500
  • Yet again your calm professionalism helped ease the process; I am naturally very grateful for all the advice you have given in this matter. I do believe you are very good at what you do.
  • Peter Allen has provided excellent advice and counsel in a number of commercial disputes; he is quick to understand the commerciality of the situation and control the process to an efficient conclusion and resolution.Client testimonial from the Legal 500
  • Peter Allen of Birkett Long LLP has excellent knowledge of the law in relation to the construction industry
  • This is a team of professional and friendly partners and staff that take time to understand your specific requirements and tailor the advice.Client testimonial from the Legal 500