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Jason Green

Senior Partner

Legal

Guernsey

Jason  Green

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 

 

Legal 500: UK Hall of Fame Chambers Ranking In UK

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

Expertise

With market-leading expertise in all forms of property law including residential, commercial and planning, we aim to go above and beyond expectations to provide clients with the best possible service. 

Our friendly, experienced team is one of the largest in Guernsey 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. 

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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 are one of the largest real estate teams in Guernsey and offer top-quality advice which anticipates the unique challenges and opportunities you are likely to face. 

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.

For Guernsey conveyancing quotes, please email the team or telephone +44 (0) 1481 734295. 

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Our 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.

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When considering a move offshore, it's essential to seek advice from experienced advisers who know the market inside out.

Our partner-led real estate team regularly helps newcomers 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.

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 are consistently praised by clients for our calm, proactive and hands-on approach, ensuring all transactions are completed as swiftly and smoothly as possible.

Some of our people have first-hand experience of relocating themselves, affording them a unique insight into the challenges and opportunities you are likely to face.

We can assist you or your company with all forms of certificates and permits and out-of-scope applications, specifically short-, medium- and long-term employment permits, out-of-scope applications, permanent residence certificates and residence permits.

We can also assist with indefinite leave to remain, tier 2 visas, entrepreneur visas and British citizenship.

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What is the 'third sector' and how can we help?

The ‘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 (i.e. the state) nor to the private sector (profit-making private enterprise).

As a business, we are heavily focussed 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.

The importance of the third sector to public life was brought into sharp focus by the Covid-19 pandemic with a significant increase in the demand for services supporting the health and wellbeing of society. During this time we saw activity levels in this space increase with organisations expanding and new organisations being formed.

Our clients in this area tend to either focus on a particular group in society (such as those suffering from a particular illness or condition) or on a particular issue or problem that needs to be solved (such as domestic abuse, access to education or climate change).

Many of our staff sit on the governing bodies of third sector organisations giving their time, energy and expertise to assist in the delivery of the organisations' purposes.

Ways in which we support this sector include:

  • provision of legal services – we draft constitutional documents, assist in the acquisition/sale of premises, draft employment contracts, deal with disputes, implement changes to the governing body, advise on compliance with law/regulation etc
  • trustee and administration services – our in-house trust and corporate services company already administers several local and international charities
  • Charity of the year –we select a charity of the year in each of our jurisdictions with whom we work closely and fundraise for. If you would like to nominate your organisation as our next charity of the year please get in touch here.
  • volunteering – each year our staff are given at least one day a year where they can devote their time in support of the third sector – recent examples include meals on wheels, beach cleans etc.
  • sponsorship – we often formally partner with, or sponsor, third sector organisations where their culture and values are aligned with ours.
  • profile raising – when we support third sector organisations in any of the above we will, where appropriate and with permission, share our experiences on social media and help to raise the profile of those organisations.      

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Managing 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.

There may be alternative ways that you wish to dispose of your estate, for charitable and philanthropic reasons or to look after those who are unable to care for themselves.

Whatever you choose, it is important to seek the right advice to ensure your wishes are preserved. At Collas Crill we have experts in a number of jurisdictions to assist with wills, succession planning, inheritance matters and probate.

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The 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.

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When considering a move offshore, it's essential to seek advice from experienced advisers who know the market inside out.

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Collas 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.

Our Channel Islands planning services include:

  • initial options and feasibility analyses
  • pre-application enquiries
  • completing and submitting planning applications
  • exemption queries
  • development frameworks
  • planning and lawful use certificate applications
  • discharge and variation of planning conditions
  • enforcement matters
  • planning appeals
  • general planning advice

For more information contact Chris Crew.

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News and insights

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 Te...

Guide 24/02/2026
  • Guernsey
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Collas Crill acts on sale of Mawson Collins Ltd to Cherry Godfrey

Collas Crill acted on the sale of estate agency and property management company, Mawson Collins Ltd, to Cherry Godfrey. Senior Partner and head of Collas ...

Deals and cases 23/02/2026
  • Guernsey
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Collas Crill involved in the sale of historic freeholds

Collas Crill was involved in the sale of the freeholds of 59 and 61 The Pollet, St Peter Port, Guernsey by their longstanding client, Walter Property Limi...

Deals and cases 20/02/2026
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Collas Crill advises on one of the first properties to be added to Guernsey’s Open Market register under new law

The recently restored Vale Mill is set to become one of the first properties to be added to Guernsey’s Open Market Housing Register under new laws that we...

Deals and cases 13/02/2026
  • Guernsey
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A review of 2025: Guernsey's property market

After a period of relative restraint (certainly when compared to the exceptional post-Covid activity), Guernsey's property market showed greater activity ...

Insight 07/01/2026
  • Guernsey
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Inheritance of Guernsey property

The loss of a loved one can be a deeply emotional time. Alongside the grief, families often face the practical challenges of dealing with property and oth...

Insight 22/10/2025
  • Guernsey
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Strong rankings maintained in Chambers UK Guide 2026

Collas Crill's Guernsey and Jersey teams have upheld the firm's rankings across all practice areas in the 2026 Chambers UK Guide, including the Guernsey p...

News 16/10/2025
  • Guernsey
  • Jersey
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Collas 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 G...

Life and careers 13/05/2025
  • Guernsey
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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 Educati...

Life and careers 03/04/2025
  • Guernsey
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New policy approved for Guernsey's open market inscriptions

Policy and guidance for Guernsey's Open Market Housing Register (Register) has now been approved by the States following proposals from the Committee for ...

Insight 25/03/2025
  • Guernsey
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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 ...

News 21/02/2025
  • Guernsey
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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 ...

Insight 13/02/2025
  • Guernsey
Read now

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'....

Insight 22/01/2025
  • Guernsey
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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 situa...

Guide 09/12/2024
  • Guernsey
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How does the 2025 Guernsey budget affect you and your property?

Following the deliberation of the 2025 budget proposals by the States of Guernsey, several proposals relating to real estate were voted in, with a particu...

Insight 05/12/2024
  • Guernsey
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A win for Elizabeth College in the Guernsey Collas Crill Moot final

Elizabeth College has won this year's Guernsey Collas Crill Moot. Mariella Groulef and Amelie Torode from the Ladies' College and Sam Savory and Cameron A...

Life and careers 04/12/2024
  • Guernsey
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The Ladies' College aim to maintain title in Collas Crill Moot Guernsey final

The Ladies' College will be looking to hold onto their title for a third year when they face Elizabeth College in the 2024 Collas Crill Guernsey Moot fina...

Life and careers 29/11/2024
  • Guernsey
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Collas Crill builds on strong rankings in 2025 Chambers UK Guide

Collas Crill's Guernsey and Jersey teams have upheld the firm's rankings across all practice areas in the 2025 Chambers UK Guide, with a notable promotion...

News 18/10/2024
  • Guernsey
  • Jersey
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Collas Crill maintains strong rankings in Legal 500 UK 2025 Guide

Collas Crill's Guernsey and Jersey teams have maintained a strong set of rankings in this year's Legal 500 UK directory. The firm is consistently listed i...

News 04/10/2024
  • Guernsey
  • Jersey
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Collas Crill's hampers bring back memories for islanders on Liberation Day

Collas Crill was very proud to support the Liberation Day hampers once again this year, along with the Guernsey Dairy, Guernsey Hamper Company and States ...

Life and careers 16/05/2024
  • Guernsey
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GDA's plans for Guernsey shared at latest Commercial Property Lunch

The Real Estate team in Guernsey was delighted to welcome Simon Kildahl and Peter Watson from the Guernsey Development Agency as guest speakers at its lat...

News 26/04/2024
  • Guernsey
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Collas Crill once again keeps the spirit of Liberation Day alive in Guernsey

PLEASE NOTE THAT ALL 500 HAMPERS HAVE BEEN ALLOCATED In commemoration of Liberation Day Collas Crill will once again be supporting the States of Guernsey'...

Life and careers 04/04/2024
  • Guernsey
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Collas Crill restructures to harness global expertise

Collas Crill has restructured its legal services into four global practices to provide clients with even greater access to the breadth and depth of its ex...

News 11/01/2024
  • BVI
  • Cayman
  • Guernsey
  • Jersey
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Guernsey's call for sites

On Monday September 11, The Guernsey Development & Planning Authority launched a 'Call for Sites' as part of the ongoing focused review of the Island ...

Insight 11/09/2023
  • Guernsey
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New Senior Partner for Collas Crill

The Partners of Collas Crill have elected Jason Green as the firm's Senior Partner. The role of Senior Partner encompasses being an ambassador for the Co...

Life and careers 30/06/2023
  • Guernsey
  • Jersey
  • Cayman
  • BVI
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Liberation Day hampers a success

Collas Crill was very proud to support the Liberation Day hampers this year, along with the Guernsey Dairy. A team of Collas Crill volunteers spent busy ...

Life and careers 20/05/2023
  • Guernsey
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Guernsey Immunity Certificate fee i

Applying for an Immunity Certificate from the States of Guernsey Development & Planning Authority (DPA) is due to become more costly. The application ...

Insight 01/03/2023
  • Guernsey
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Guernsey property market review

The past few years have seen unprecedented activity in the Guernsey property market as easy access to low-interest lending (among other influences) whippe...

Insight 23/01/2023
  • Guernsey
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Collas Crill explains... Vesting and severance

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

Guide 16/01/2023
  • Guernsey
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Changes to document duty - Guernsey

Introduction New document duty rates applicable to certain transactions came into effect on 2 November 2022 in Guernsey. These rates will apply to all tra...

Insight 10/11/2022
  • Guernsey
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Collas Crill: Chambers 2022 UK

Collas Crill has maintained its strong position in the Chambers & Partners United Kingdom 2022 directory, upholding its rankings across all practice a...

News 20/10/2022
  • Guernsey
  • Jersey
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Collas Crill UK Legal 500 2023

Collas Crill has maintained its strong position in the Legal 500 United Kingdom directory this year, upholding its rankings across all practice areas. Des...

Life and careers 29/09/2022
  • Guernsey
  • Jersey
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Property acquisition advice

Collas Crill's Property team has advised Queen's Road Medical Practice on its recent acquisition of Grange Road House in Guernsey. The property occupies a...

Deals and cases 31/05/2022
  • Guernsey
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2021 Guernsey property market

It is no secret that the island's property market has experienced an exceptional 12 months of activity. This reflects a trend that has been observed in ma...

Insight 26/01/2022
  • Guernsey
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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 ...

Guide 14/10/2021
  • Guernsey
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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...

News 08/03/2021
  • Guernsey
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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"...

Insight 27/01/2021
  • Guernsey
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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...

News 19/01/2021
  • Guernsey
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Guernsey estate agents

Name Residential Lettings Commercial Hub Carre Property • •     Chateaux Estate Agency • •     Cherry Godfrey Property • • ...

Guide 01/01/2021
  • Guernsey
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Chambers and Partners UK 2021

Collas Crill has retained its rankings in Chambers and Partners UK 2021 across all departments and banded individuals in Guernsey and Jersey, with a numbe...

News 22/10/2020
  • Guernsey
  • Jersey
  • London
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Legal 500 UK rankings

Collas Crill has been recommended as a top tier firm in four practice areas in Guernsey and Jersey in the Legal 500 United Kingdom 2021 rankings, reflecti...

News 01/10/2020
  • Guernsey
  • Jersey
  • London
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Acquisition of Valley House

Collas Crill has assisted the Channel Island Property Fund Limited (CIPF) on the addition of another significant property in Guernsey to its Channel Islan...

Deals and cases 01/09/2020
  • Guernsey
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Collas Crill advises on Premier Inn

Collas Crill acted as legal advisor to Channel Islands-based property developer, Comprop, which has signed up to facilities with the Royal Bank of Scotlan...

Deals and cases 15/05/2020
  • Guernsey
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Document Duty (Guernsey) Law 2017

A Policy Letter entitled Minor Changes to the Document Duty (Guernsey) Law, 2017 has been submitted to H M Greffier for debate at the next sitting of the ...

Insight 14/05/2020
  • Guernsey
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The Guernsey property team

The Property team at Collas Crill is settling into its new 'home' office environment and we can be reached in the usual way by email, mobile or our direct...

News 22/04/2020
  • Guernsey
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COVID-19 Court Issues

The restricted movement requirements currently in place across the Island impact on many parts of a conveyancing transaction. Our Collas Crill conveyancin...

Insight 08/04/2020
  • Guernsey
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Teams advise on acquisition

Collas Crill's Guernsey Property and UK Real Estate teams have advised on multiple elements of the acquisition of Island Bowl. Collaboration between the t...

Deals and cases 23/03/2020
  • Guernsey
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A Deposit Protection Scheme

The Committee for the Environment & Infrastructure has published a policy letter which asks the States to approve a single legislative framework that ...

Insight 13/03/2020
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Acquisition of Guernsey Press

Collas Crill has assisted Bailiwick Investments Limited and MXC Guernsey Limited with the recent acquisition of The Guernsey Press Company Limited, from J...

Deals and cases 03/10/2019
  • Guernsey
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Challenging planning decisions

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 ...

Insight 23/08/2019
  • Guernsey
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Acquisition of Ronez

Offshore law firm Collas Crill advised on the Channel Island aspects of SigmaRoc plc's acquisition of construction materials group Ronez for £45.0 million...

News 05/01/2017
  • Guernsey
  • Jersey
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