Providing independent cost consultancy to the construction industry since 1780

Proud providers of high quality, independent professional services to the construction industry for over 240 years


We have a longstanding reputation for providing independent commercial advice to support investment in the built environment both in the UK and globally.

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Corderoy offers a wide range of commercial services to meet the evolving needs of our clients. We always seek to first understand our clients aims and ambitions allowing us to develop tailored solutions combining tried and tested approaches with innovations that deliver the desired outcome.

We provide the full remit of pre and post contract commercial services, from project inception to completion and throughout operation. Whether it be preparation of initial feasibility stage estimates and business case or support in agreeing final accounts, we have the people, processes, and systems to support.

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We are proud of our long-standing service record across a vast array of project types and sizes. We understand the needs and aspirations of modern procurement, moving away from adversarial, transactional relationships to those based around collaboration and mutual respect that drive positive outcomes with shared measures of success. We are firmly behind the concept that process delivers outputs, and people deliver outcomes. To deliver best value, we provide both.


Corderoy is a privately owned SME, registered as a firm regulated by the Royal Institution of Chartered Surveyors. 

We also hold certification to ISO 9001:2015 (Quality Management Systems); ISO 14001:2015 (Environmental Management); ISO/IEC 27001:2013 (Information Security Management) and ISO 45001:2018 (Occupational Health and Safety).

In addition to our Head Office in London, we operate from 6 regional offices across England and Wales. We offer a flexible working approach to best suit the needs of our clients, whether that be within our own offices, their offices or on site.

On average, our senior leadership team have enjoyed over 20 years’ service with us, providing them with deep understanding of the industry, our values and culture.  70% of our staff hold professional accreditation or are undergoing professional training to achieve it.


If you need any assistance please do get in touch with your usual contacts, or if you are a seeking further information, please do not hesitate to contact us.

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We have an enviable track record of providing professional advice and support to a wide range of public and private sector client organisations, consulting engineers and contracting organisations, both in the UK and internationally.


“I wanted to drop you a note to share some feedback following a recent Senior Leadership Team meeting, where it was noted by all that the (Corderoy) team are doing a fantastic job and we are acknowledging the continuous improvement of the service. The feedback for the approachability, effort and hardworking of all of the team has been noted but in particular we wanted to acknowledge the fantastic levels of ownership which have been demonstrated.” 
Commercial Lead, National Highways
“The sheer professional performance and excellence of your (Corderoy) dedicated Team well justifies our confidence in choosing you as our Commercial Management partner.” 
Senior Commercial Manager, Network Rail Gauge Clearance Works
“Corderoy have shown detailed commercial understanding and are regularly delivering on client requirements relating to the Taffs Well Depot contract, despite change in roles and project challenges.”
Programme Commercial Manager, Transport for Wales
“Corderoy’s advice on commercial and contractual matters is exemplary. Their understanding of technical detail is always impressive; however it is their ability to explain and set out the nuances of the technical aspects simply and clearly that makes them stand out”
Partner, DWF Law