About us

A specialist team you can talk to

Osborn Chartered Surveyors is an RICS-regulated practice based in Essex, specialising in party wall matters across London and the South East. We're a small firm — which means when you call, you speak to a surveyor.

The firm

About Osborn Chartered Surveyors

Osborn Chartered Surveyors is the trading name of M J Osborn FRICS Ltd, an RICS-regulated building surveying practice based in Black Notley, Essex. We operate primarily across London and Essex, handling the full range of party wall instructions from individual homeowners through to developers with multiple adjoining interests.

Party wall work is our core specialism. We act as Building Owner's Surveyor, Adjoining Owner's Surveyor, and as Agreed Surveyor where both parties are happy to proceed on that basis. We handle the full process — notices, schedules of condition, and awards — and we're used to managing matters with multiple adjoining owners and complex construction programmes.

Alongside party wall work, we offer building surveys, property valuations and lease extension advice for residential and commercial clients.

RICS regulated

As an RICS-regulated firm, we are bound by the Royal Institution of Chartered Surveyors' Rules of Conduct. This means you can expect transparent fees, professional indemnity insurance, and a complaints procedure if things go wrong.

Firm details
Registered nameM J Osborn FRICS Ltd
BasedBlack Notley, Essex
CoverageLondon & Essex
Regulated byRICS
SpecialismsParty wall, surveys, valuations, lease extensions
The team

Who you'll be working with

We're a small practice — every instruction is handled by one of our surveyors, not passed to a junior or an administrator.

MO
Mike Osborn
Director · FRICS
Mike is a Fellow of the Royal Institution of Chartered Surveyors with extensive experience across building surveying, valuations and party wall work. He co-founded the practice and oversees the firm's quality and professional standards.
SO
Sam Osborn
Director & Party Wall Surveyor
Sam leads the firm's party wall practice, managing the full range of instructions from residential loft conversions through to complex multi-neighbour commercial schemes. He handles the majority of the firm's day-to-day client work and new instructions.
SM
Steven McDonnell
Party Wall Surveyor
Steven works alongside Sam on party wall instructions, assisting with schedules of condition, award preparation and site visits. He brings a thorough and methodical approach to every instruction.
Accreditations

Professional memberships

Our regulation and memberships give you confidence that your instruction is in professional, accountable hands.

RICS — Royal Institution of Chartered Surveyors
The firm is regulated by RICS, the world's leading professional body for qualifications and standards in land, property and construction. RICS regulation means professional indemnity insurance, a code of conduct, and a formal complaints process.
YouTube channel
We produce educational content on party wall matters for homeowners and property professionals. Our channel covers the Party Wall Act, the notice and award process, and common questions from building and adjoining owners.

Get in touch

Whether you've received a notice or need to serve one, contact us for straightforward advice with no obligation.

Contact us info@mjosborn.co.uk Covering London & Essex