Jason Green
Senior Partner | Guernsey
Helpful, active, intelligent and approachable
Client feedbackJason is very responsive and understands some of the complex issues that we deal with. All of our property work in Guernsey is undertaken by Jason Green.
Legal 500 (UK) 2023Jason Green provides excellent advice for board consideration.
Legal 500 2024Well connected to the marketplace, regularly hosting focus groups that encourage debate among the attendees not only on market conditions but also issues and concerns affecting the sector. Help shape the industry through thought leadership.
Legal 500 2025 (UK)Jason Green is good to work with, professional, responsive and pragmatic, which is important.
Legal 500 (UK) 2023Articulate and knowledgeable, he is client-focused and goes the 'extra mile' to ensure satisfaction
Client feedbackExtremely knowledgeable and fills you with confidence
Client feedbackJason is always available and he provides excellent advice.
Chambers UK 2024Jason 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 500Jason Green is the partner that we deal with on almost a weekly basis, he has an excellent knowledge of the Guernsey property sector along with a very good commercial understanding of the sector. Collas Crill have an excellent property team.
Legal 500 (UK) 2023We particularly enjoy working with Jason Green. We find him responsive, diligent, commercially minded and a good team player.
Legal 500 2022Jason's responsiveness and advice are top notch.
Chambers UK 2023Jason is experienced and knowledgeable.
Chambers UK 2024
Jason acts for numerous 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.
In his role as Senior Partner, Jason acts as an ambassador for the Collas Crill group across its offices in Guernsey, Jersey, Cayman and BVI, and helps raise its profile across the globe. As the most senior figure within the firm, Jason is involved in the strategic direction and decision-making of the firm.
Experience
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.
His clients include The Channel Islands Property Fund, RBSI, Kleinwort Hambros, Guernsey Housing Association and ComProp.
Jason also advises on planning matters and has appeared before the Appeals Tribunal on various occasions advising on some of the most controversial applications.
For the past few years Jason been heavily involved in the redevelopment of Admiral Park, which has seen the construction of a brand new Premier Inn, a restaurant as well as two flag ship office buildings – Jason having drafted many of the documents required for the construction, agreements for lease, leases and related documents. He also acted for the developer in the recent sale of the smaller office building which is home to Bank Julius Baer. He regularly provides advice to office tenants as well as landlords on their property requirements
Jason is a Notary Public and Chair of the Association of Guernsey Notaries Public. Jason is also the Registrar of the Bailiwick of Guernsey Probate Registry and Ecclesiastical Court.
He was sworn in as a Lieutenant Bailiff of the Royal Court of Guernsey and Deputy Judge of the Magistrate's Court of Guernsey in 2023.
Background
Jason joined Collas Day and Rowland, as it then was, in 1994 and has been integrally involved in the development and growth of the firm over almost three decades. He headed up the property team until December 2020.
Aside from property, Jason has a passion for corporate social responsibility and has been involved in many charities over the years, most notably being chair of Autism Guernsey from its incorporation until 2018, as well as chair of the Judging Panel of the Community Foundation Awards for Achievement. He is also an ambassador for the Priaulx Premature Baby Foundation and regularly provides legal advice to charities on their property requirements.
Most recently he was the driving force behind Collas Crill's involvement in the Guernsey Liberation Day hamper initiative, a partnership with Education, Sport and Culture (of which Jason is a non-voting member), which saw 500 hampers donated to those islanders who lived through the Occupation or who were evacuated from Guernsey in the Second World War.
Jason was appointed as Senior Partner in June 2023.
Awards
- Hall of Fame - Legal 500
- Band 1 - Chambers UK Guide
Whatever your property goals, you want personalised advice that is right for you.
We take the time to get to know you and offer discreet, practical advice that’s tailored to your needs. Our friendly, experienced team is one of the largest on the island and can help you with a range of property services, whether you're relocating to the Channel Islands, moving house on island, planning to develop your property or seeking other residential or commercial property advice.
We are ranked in the top tier of both the Legal 500 and Chambers & Partners directories.
Read moreOur commercial property team includes some of the most highly regarded offshore commercial property lawyers. We are recognised and cited for our experience, commercial approach, exceptional service standards and ability to deliver in a fast and efficient manner.
We have been involved in many of the most significant commercial property transactions of the last decade in Guernsey. We handle all aspects of commercial freehold and leasehold real estate, acting for both landlord and tenant, buyer and seller, and have the experience to guide you through every stage of a transaction with absolute confidence.
Read moreWhen considering a move offshore, it's essential to seek advice from experienced advisers who know the market inside out.
Our Real Estate team regularly helps newcomers to Guernsey in acquiring new homes and/or business premises and guiding them through the relocation process. We act for many high-net-worth individuals and high-value residents.
Read moreThe third sector is an umbrella term that covers a variety of different organisations with different legal structures and purposes, belonging neither to the public sector (the state) nor to the private sector (profit-making private enterprise).
As a business, we are heavily focused on supporting third sector organisations both in our local communities on local issues and also internationally.
Charities, non-profit organisations (NPOs) and voluntary organisations are increasingly required to plug the gap and perform the social and cultural functions formerly carried out by the public sector.
Read moreManaging wealth, asset preservation, planning for succession and inheritance, and writing wills can be a complex and difficult experience. It's important to ensure that your assets are distributed according to your wishes and that your family and/or successors are taken care of.
Read moreThe property sector is critical to the economic landscape in any jurisdiction and, whatever's going on in the market, every transaction requires lawyers who can act proactively, adapt and deliver in an ever-changing environment.
Our full-service real estate teams are recognised by clients for their responsive, friendly and commercially aware approach.
Read moreWhen considering a move offshore, it's essential to seek advice from experienced advisers who know the market inside out.
Our property teams regularly help newcomers to the Cayman Islands, Guernsey and Jersey in acquiring new homes and/or business premises and guiding them through the relocation process. We act for many high-net-worth individuals and high-value residents.
Read moreCollas Crill has a proven track record on planning matters, from initial advice through to successful planning appeals. Our aim is to make the planning process as simple as possible, bearing in mind at all times our clients' primary goal.
Read moreCollas Crill marks 80th anniversary of Liberation Day
To mark the 80th anniversary of Liberation Day in Guernsey, Collas Crill assembled, packed and handed out 500 hampers to those islanders who remained in Guernsey during the occupation or who were evacuated during the Second World War. Collas Crill ...
Registration is now open for the 2025 Liberation Day hampers in Guernsey
THE DEADLINE FOR REGISTRATION HAS BEEN EXTENDED TO FRIDAY 2 MAY! Collas Crill is once again partnering with the States of Guernsey’s Committee for Education, Sport & Culture to give away 500 Liberation Day tea hampers to islanders aged 80 or over who...
Collas Crill helps mark 80th anniversary of Liberation Day in Guernsey
Collas Crill will once again be supporting the States of Guernsey's Committee for Education Sport and Culture in gifting individual hampers to the senior community in commemoration of the 80th anniversary of Liberation Day. It is the third year Collas Cr...
Proposed policy for Guernsey's open market inscriptions
Policy and guidance for Guernsey's Open Market Housing Register (Register) will be seen in this coming year when new proposals from the Committee for the Environment & Infrastructure (E&I) are debated by the States of Guernsey. Background Under t...
A review of the Guernsey property market in 2024
Following the exceptional activity generated in Guernsey's property market over the recent years, the market appears to be slowly 'returning to the norm'. The number of transactions decreased in 2024, but the total value of these conveyances saw an incre...
A Guernsey landlord’s guide: What happens when a tenant of commercial premises becomes insolvent?
Here we explore the insolvency processes in Guernsey from a landlord’s perspective, highlighting how landlords can protect themselves in challenging situations. Preparation is key The best way to protect yourself as a landlord is to prepare at the negoti...
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