Search guides & insights
Jason  Green

Jason Green  

Partner | Guernsey


  • Articulate and knowledgeable, he is client-focused and goes the 'extra mile' to ensure satisfaction
    Client feedback
  • Helpful, active, intelligent and approachable
    Client feedback
  • Jason Green offers both property knowledge and also provides common sense options and alternatives to problems that always arise in complicated transactions - he is also quick to notice where there maybe issues so that parties can discuss and resolve
    Legal 500
  • We particularly enjoy working with Jason Green. We find him responsive, diligent, commercially minded and a good team player.
    Legal 500 2022
  • Extremely knowledgeable and fills you with confidence
    Client feedback

Jason has been with the firm since 1994. He has been integrally involved in the development and growth of the firm, now with offices in six jurisdictions. He acts for numerous residential and commercial developers, high net-worth individuals with property portfolios as well as banks, companies and other clients with commercial and residential property portfolios. He also acts for high net-worth individuals moving to Guernsey and sits on the Guernsey Property Forum.

Jason was named as a Leading Individual in the Legal 500 2022 listing.

"What clients need is timely commercial practical advice which leads them to their target. We are not the passengers, we are the drivers."

His clients include The Channel Islands Property Fund, Bailiwick Investments Limited ComProp RBSI, SG Kleinwort Hambros, Guernsey Housing Association and Investec Bank.

Jason has over the years been involved in most of the largest commercial transactions in Guernsey, whether acting for seller, buyer, lender, landlord or tenant and including Royal Chambers, Royal Bank Place, La Grande Mare Hotel,. The Guernsey Press, Albert House, Carey House to name but a few.

Jason also advises on planning matters and has appeared before the Appeals Tribunal on various occasions advising on some of the most controversial applications.

He is also a Notary Public and chair of the Association of Guernsey Notaries Public as well as chairing the Judging Panel of the Community Foundation Awards for Achievement and Collas Crill's own global CSR Committee.

My services
Commercial Real Estate

At Collas Crill, our commercial property team includes some of the most highly regarded offshore commercial property lawyers. Our team is recognised and cited for its experience, commercial approach, exceptional service standards and its ability to deliver in a fast and efficient manner. Across Guernsey, Jersey and the Cayman Islands we have been involved in many of the most significant commercial property transactions of the last decade. We handle all aspects of commercial freehold and leasehold real estate, acting for both landlord and tenant, buyer and seller. We have the experience to guide you through every stage of a transaction with absolute confidence.


At Collas Crill we take a hands-on approach, working in close collaboration with our clients, their advisers and other legal professionals to ensure every deal and transaction is managed to successful completion. Regardless of the prevailing economic and market conditions our goal is to minimise the risks and drive maximum value for our clients in every property transaction. Our property specialists have the local knowledge and expertise to not only offer top quality advice on all commercial and residential transactions, but to give meaningful opinions and anticipate challenges and opportunities at every stage of the process.

Property Relocation

When considering moving to the island, it's essential to seek advice from experienced advisers who know the market inside out. Our property teams regularly help newcomers to the islands in acquiring new homes and/or premises for new business and guide them through the relocation process. We believe that communication and responsiveness are the key to a stress-free experience which is why we're always on hand to listen, offer assistance and pick up the phone to keep you informed at every stage of your move. We act for many HNWIs and HVRs and are consistently praised by clients for their calm, proactive and hands-on approach, ensuring all transactions are completed as swiftly and stress-free as possible.

Residential Property

Property law can be a complex, daunting and emotional experience for many individual buyers and sellers. Feeling an emotional tie to your new or prospective property, your 'home', is inevitable. When buying or selling property you need a strong, dependable team that knows the market inside and out. We offer top quality advice and successfully anticipate the unique challenges and opportunities you are likely to face. We believe that communication and responsiveness is the key to a stress-free experience which is why we're always on hand to listen, offer assistance and pick up the phone to keep you informed at every stage of a transaction.

Wills & Estate Planning

Planning for the future is something that people often don't like to think about however it is one of the most important things that you should do during your lifetime. Whether you need simple Wills put in place or more complex estate structuring, our experienced and approachable team can help you organise and plan your affairs for the immediate and longer term future. We work hard to guide you through any issues of concern to ensure that you reach a position where you feel reassured that you are clear as to what will happen to your assets, and the ones you leave behind, in the future.

News 8 Mar 2021

Property history made in Sark

Collas Crill completed the first conveyance of part of a tenement in Sark on Friday 5 March, following recent changes to Sark's ancient property laws. The long-awaited Land...

Insight 25 Feb 2021

Recovery from lockdown

Guernsey has now moved into Recovery Stage 1, a few weeks after the implementation of its second island-wide lockdown. Together with the (hotly anticipated) resumption of...

Insight 28 Jan 2021

Clarification on lockdown guidance

There has been some confusion this week over what matters should or should not complete in Court during lockdown. As a consequence, it is worth clarifying what matters can...

Insight 27 Jan 2021

Changes coming to Sark property law

1 February 2021 is set to be a massive day for Sark and its people with the coming into force of the long-awaited Land Reform (Sark) Law, 2019, (the "Law"). The Law will...

Insight 25 Jan 2021

Guidance following new lockdown

We know that many people are in the process of buying or selling, and at various stages. Some are just getting prepared to sign up, and others were all ready to move. So...

News 19 Jan 2021

New Guernsey Head of Property

Collas Crill has appointed Partner Paul Nettleship as Head of Property in its Guernsey office, following Jason Green's decision to step away from the role of head of...

Showing 6 of 73 Results

Load more
Guide 14 Oct 2021

Collas Crill explains... Moving to Guernsey

This is part of a series of guides in which we examine areas of law that frequently arise in practice. Further guides will be released weekly; click here to subscribe to...

Guide 1 Jan 2021

Guernsey Estate Agents

Guide 2 Sep 2019

Policing problematic parking - Terres à L'Amende in Guernsey

What is a Terres A L'Amende? An aspect of property law that is unique to Guernsey, the term refers to an area of land which has been designated as 'Les Terres Mises à...

Guide 22 Aug 2019

Challenging Planning Decisions - Third Party Appeals

Where do third parties stand in Guernsey?  Currently there is no formal process of appeal for those aggrieved or third party applicants against a planning decision in...

Guide 22 Nov 2018


Perhaps the most unique (and often puzzling) aspect to those not familiar with the Island is that Guernsey's residential property market operates with 2 distinct tiers...

Guide 8 Jun 2018

The Differences Between Buying In Guernsey And England

To an outsider, the procedure of buying a Guernsey property can seem rather complex. Whilst in either jurisdiction the end result is the same, the approach and processes...

Showing 6 of 11 Results

Load more
Event 3 Apr 2019
Past Event

Risk and Regulatory Spring Seminar

Collas Crill is hosting a seminar on Public Law: considerations for business. In an age of increasing legislation, regulation and government decision making that impacts the...

Showing 1 of 1 Results