Welcome to David Cosby Chartered Surveyors and Estate Agents. We have over two decades of professional property experience serving Northamptonshire, Warwickshire, and Buckinghamshire.
An RICS regulated firm providing a personalised service with attention to detail and the highest levels of integrity.

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Property Specialists
Our experienced Estate Agents have the benefit of Surveying and Property Law experience to offer unrivalled assistance in helping parties to reach exchange and completion.
Our Independent Chartered Surveyors and Architectural Technicians are able to provide a complete range of surveying and design services.
Property Specialists
We operate a Professional Estate Agency providing a bespoke sales service with the benefit of the Directors having Surveying and Property Law backgrounds to offer unrivalled assistance in helping parties to reach exchange and completion.
Our Independent Chartered Surveyors and Architectural Technicians are able to provide a complete range of surveying and design services.
A Professional Estate Agency Service
David Cosby Chartered Surveyors & Estate Agents are an RICS registered firm and have the benefit of Surveying and Legal expertise to help with your sale and purchase. Estate Agents who are regulated by the RICS uphold the core principles of transparency and provide the highest level of professional standards and ethics.
We are so confident in the professional service we provide that we have no fixed term contract or tie in periods, and our current rate is just 1% Including VAT on a No Sale - No Fee basis.
As an independent family run business with your best interests at heart we are able to provide a comprehensive personal service that cannot be matched by the larger corporate firms.
If you are considering selling or would like further information then please contact us on to arrange a free, no obligation market appraisal.
Gareth Powell MARLA
Sales & Lettings Manager
David Cosby MRICS
Principal Director | Building Surveyor
Natasha Cosby MNAEA | Solicitor
Director | Practice Manager
Virginia Church MRICS
Building Surveyor
Sadie Tyson MNAEA
Sales & Lettings Agent
A Professional Lettings Service
Managing a rental property can be demanding, particularly when balancing tenant selection, maintenance, compliance, and day-to-day communication. Our lettings team provides a professional and structured service to support landlords and protect their investment.
We are regulated by both the Royal Institution of Chartered Surveyors and ARLA, giving landlords confidence that their property is managed in line with recognised professional standards.
We have detailed knowledge of the local rental market and can advise on appropriate pricing, marketing, and tenant selection. Our referencing and screening process is designed to help secure suitable tenants who will meet their obligations throughout the tenancy.
Our service covers tenancy documentation, renewals, routine inspections, and maintenance coordination. We work with trusted contractors to address repairs promptly and keep the property in good order, while maintaining clear communication with both landlords and tenants.
If you are seeking a reliable, well-managed lettings service with clear professional oversight, please contact us to discuss how we can help.
Your Local Property Professionals
Testimonials
Latest News and Projects
Why Insurance Reinstatement Cost Assessments Matter
Reinstatement Cost Assessments (RCAs) are essential to ensure properties are correctly insured in the event of significant damage or loss. During a recent visit to the historic Raynsford Almshouses in Northampton, we assessed the rebuilding costs of this 17th-century Grade II listed property. Proper valuations help avoid the risks of underinsurance or overinsurance, ensuring these important buildings remain protected for the future.
Surveying at the Royal Hospital Chelsea: A Privilege and Honour
David Cosby Chartered Surveyors are proud to be undertaking land surveying works at the historic Royal Hospital Chelsea, home to the iconic Chelsea Pensioners. Appointed by Sabre Contractors, our detailed topographical and utilities surveys will support the hospital’s infrastructure, preserving its legacy as a symbol of national pride and military heritage.
A Little History of Towcester
Moving to Towcester? This market town, known as Lactodorum, was a bustling hub on the famous Watling Street. Today, its rich heritage is reflected in landmarks like Bury Mount, the Towcester Museum, and the nearby Stowe Gardens, shaped by Capability Brown. With its blend of history, green spaces, and proximity to modern attractions like Silverstone Circuit, Towcester offers a unique connection to the past while embracing the present.










































































