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Contact

Contact with chambers should be made through the Practice Management Team. They are happy to discuss client requirements and provide further information on such matters as the expertise and experience of individual members, fees, working practices and languages spoken. We have members able to work in French, German, Italian, Spanish, Dutch, Swedish, Greek and Chinese (Mandarin).

Outside working hours, a member of our team is always available to be contacted on matters of an urgent nature. Contact should be made using the Chambers main number or email.

For our Singapore office, for client enquiries please contact our BD Director, Asia Pacific, Lara Quie and for all other queries please contact Lynn Quek. Out of office hours calls will automatically be diverted to our clerking team in London.

London

Twenty Essex
London
WC2R 3AL

enquiries@twentyessex.com
t: +44 20 7842 1200
DX 0009 Lond/Chan Lane

Singapore

28 Maxwell Road
#02-03
Maxwell Chambers Suites
Singapore 069120

singapore@twentyessex.com
t: +65 62257230

Contact

Contact with chambers should be made through the Practice Management Team. They are happy to discuss client requirements and provide further information on such matters as the expertise and experience of individual members, fees, working practices and languages spoken. We have members able to work in French, German, Italian, Spanish, Dutch, Swedish, Greek and Chinese (Mandarin).

Outside working hours, a member of our team is always available to be contacted on matters of an urgent nature. Contact should be made using the Chambers main number or email.

For our Singapore office, for client enquiries please contact our BD Director, Asia Pacific, Lara Quie and for all other queries please contact Lynn Quek. Out of office hours calls will automatically be diverted to our clerking team in London.

London

Twenty Essex
London
WC2R 3AL

enquiries@twentyessex.com
t: +44 20 7842 1200
DX 0009 Lond/Chan Lane

Singapore

28 Maxwell Road
#02-03
Maxwell Chambers Suites
Singapore 069120

singapore@twentyessex.com
t: +65 62257230

Kate Parlett

Kate Parlett

Call: 2015 (England and Wales); 2010 (Solicitor, England and Wales); 2005 (Solicitor, Australia)

Kate specialises in public international law and international arbitration. Her practice covers the full range of public international law including land and maritime boundaries, law of the sea, state responsibility, treaty obligations, immunities, the use of force, international humanitarian law, international trade law, human rights, environmental law and sanctions. She also represents states and investors in investment treaty arbitrations, including under the ICSID and UNCITRAL rules.

Kate has extensive experience as an advocate before international tribunals and domestic courts. Kate has been instructed and appeared before the International Court of Justice (ICJ) in disputes concerning land and maritime boundaries, transboundary environmental harm, and treaty and other international obligations. She has also been instructed in several cases before the European Court of Human Rights. She has recently appeared before the English courts in numerous leading cases involving diplomatic immunity, head of government immunity, and Foreign Act of State.

She also sits as arbitrator in international commercial disputes across a range of sectors and institutional rules. Kate holds Australian nationality only.

Kate is recommended as a leading junior for public international law in the legal directories. She has been most recently described as having a ‘first rate intellect, very well-organised mind, very diligent and able to get on with whatever the task – including complex factual and expert issues.’

Kate has taught public international law, international investment and commercial arbitration, and international human rights law at the universities of Cambridge, Paris-II (Panthéon-Assas), Queen Mary (University of London), Queen’s University (Canada), Queensland and at the Graduate Institute in Geneva.

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Public international law

International arbitration

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Human rights

Energy and natural resources

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Her strategic vision for the most difficult cases is spot on, her intellectual rigour is outstanding, and her attention to detail is exceptional. She's an extraordinarily talented lawyer.

Chambers UK Bar 2023

First rate intellect, very well-organised mind.

The Legal 500 UK Bar 2023

Very diligent and able to get on with whatever the task – including complex factual and expert issues.

The Legal 500 UK Bar 2023

A good advocate with a strong, analytical mind who is hands-on and diligent." "She is responsive and accurate.

Chambers UK Bar 2022

Kate is a fantastic, talented lawyer: hardworking, clever, a great advocate and also a joy to work with. She holds her own against far more senior people with aplomb.

The Legal 500 UK Bar 2022

Kate Parlett is a 'stellar practitioner with a real understanding of client needs in relation to international arbitration' who possesses 'extensive experience representing clients from a wide range of sectors in cross-border disputes'

Who's Who Legal, Arbitration 2021 - Future Leaders

Extremely diligent, a very strong intellect and a very good written and oral advocate. She ticks all the boxes and is a good team player.

Chambers UK Bar 2021

Great knowledge of the law and ability to communicate it to (non-specialist) lawyers and non-lawyers. Clear written advice.

The Legal 500 UK Bar 2021

Fantastic cross-examination skills, including attention to detail, tenacity and just the right level of aggression.

The Legal 500 UK Bar 2021

She has a fantastic grasp of ECHR jurisprudence, and a depth of knowledge of PIL issues.

The Legal 500 UK Bar 2020

An expert on public international law, deemed a 'very knowledgeable and confident' practitioner who 'asks insightful and probing questions'.

Who's Who Legal, UK Bar, 2020

Possesses a very strong academic background in public international law." "Very confident and knowledgeable.

Chambers UK Bar 2020

Very hard-working, committed to her work and reliable.

Chambers UK Bar 2019

Really excellent, very bright, and very hardworking.

The Legal 500 UK Bar 2019

Kate Parlett stands out as 'one of the top barristers in public international law in London', and is well versed in handling complex international arbitration disputes. She is recognised particularly as 'a leading light in the law of the sea'.

Who's Who Legal, UK Bar, 2018

She has a good International Court of Justice pedigree.

Chambers UK Bar 2018

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