Stephen J. Walton MCIPS

Stephen has been operating in Specification Consultancy since 2002 with a preceding career in Construction Procurement for more than 20 years prior.

Stephen’s specification career began with Davis Langdon Schumann Smith in 2002 which included a tenure in Dublin between 2007-2009 running the Specification Department of DL PKS before rejoining DLSS in London shortly before the AECOM acquisition of Davis Langdon in 2010.

In 2013, Stephen joined Schumann Consult and remained there through the merger with RLB (Rider Levett Bucknall) in 2016 becoming a Partner until leaving in April 2018 to start up NSUK Ltd.


Taiwo Odunaike ACIAT

Taiwo’s focus on specification consulting commenced since 2005 when he joined Davis Langdon Schumann Smith (later acquired by AECOM) working closely with Stephen. This was preceded by approx a decade running refurbishments projects and facilities maintenance management programmes.

Before leaving to join NSUK Ltd in March 2019, Taiwo worked on several UK and overseas projects of varying styles and complexities, designed by several signature architects such as F+P, ZHA, Hopkins, WEA, FCBs & BGY.

At AECOM, Taiwo was a Senior Specification Consultant, the lead CSI (US specification format) consultant for the UK office and a key member of the UK Specification Technical Review committee. During his AECOM tenure, he spearheaded projects such as Al Wakrah FIFA 2022 Stadium Precinct in Qatar and British Embassy in Washington.




National Specifications UK Ltd are proud to be the vanguard of the National Specifications Group along with The Friday Group LLC whereupon close collaborative working optimises the benefits of knowledge-share and sector experience.

Professional Indemnity

NSUK holds PI insurance – Details available on request

Quality Assurance / Technical Back-up

Milestone proof-reading

Industry memberships – BM TRADA / CWCT / British Library / BSI/ BSRIA