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Niamh Brennan

Barrister

 

Niamh joined chambers as a tenant in September 2025, following the successful completion of her pupillage under the supervision of Ashley Lord and mentorship of Marie Harbin and Pippa Pudney.

Niamh has developed a busy and varied practice encompassing the core areas of Chambers’ expertise, namely public children law proceedings, private children law proceedings and Court of Protection proceedings.

 

Prior to commencing pupillage, Niamh worked as an advocate in a range of civil matters, regularly appearing before District Judges in small claims hearings, possession lists and infant settlement hearings, amongst others, gaining advocacy experience. In addition, Niamh was also a legal assistant, assisting with various civil matters. Further, Niamh has participated in various volunteering opportunities that have expanded her knowledge of vulnerable parties.

 

Public law

Niamh is regularly instructed to represent local authorities, parents, grandparents and the children’s guardians in a wide range of public law proceedings and at all stages of proceedings including multi-day fact-finding hearings and final hearings. Her experience includes cases involving serious allegations of neglect, emotional, physical and sexual abuse, non-accidental injury, substance misuse, domestic abuse and mental health difficulties.

 

Niamh has acted as junior counsel in complex cases involving serious non-accidental injuries.

 

Niamh also appears in applications to deprive children of their liberty. Niamh also has experience in dealing with vulnerable clients, clients with cognitive difficulties and clients who require interpreters.

 

Private law

Niamh frequently represents parents in a wide range of private law matters, including applications concerning child arrangements (lives with and spends time), as well as cases involving allegations of domestic abuse, parental alienation, contact disputes and relocation issues.

 

Niamh also has experience of representing childrens guardians under Rule 16.4.

 

COP

Niamh regularly appears in the Court of Protection, primarily in health and welfare matters. She acts for P, local authorities and ICBs in proceedings brought under section 21A and section 16 of the Mental Capacity Act 2005.