The practice was jointly founded in 1970 by John Simpson and Angus Rennie, initially trading under the name of John M. Simpson & Co., and subsequently re-named as The Rennie Partnership in 1993. Colin Brodie joined the firm in 1973.

The practice now comprises Angus Rennie and Colin Brodie. Both are Fellows of the Royal Institution of Chartered Surveyors, and together they bring many decades of experience of construction cost management.  We pride ourselves in the personal service we provide.  Each commission is handled personally by one or both partners, depending on the nature and complexity of the project. 

The practice is affiliated to and regulated by the Royal Institution of Chartered Surveyors (refer to the RICS website for further details).

The firm is based in Cumbernauld, and the majority of our projects are in Scotland, with the occasional foray into England (London and Manchester).

In addition, we have a particular association with the Western Isles (Outer Hebrides). Our first commission dates back to 1974, which was the new sub-regional offices in Balivanich, Isle of Benbecula for the embryonic Western Isles Council. We were shortly afterwards awarded the commission for the Western Isles Council (Comhairle nan Eilean Siar) main headquarters building in Stornoway.  The pinnacle of our Western Isles commissions followed in the late 1980s, when we were appointed by Comhairle nan Eilean Siar as Consultant Quantity Surveyors for the new Sgoil Lionacleit (Liniclate Community School) on the Isle of Benbecula.


We currently provide construction cost management services throughout the Western Isles for a wide variety of clients, including the Hebridean Housing Partnership, Tighean Innse Gall and numerous private and commercial clients.


We are proud to say that one of our significant clients for more than 20 years is STV (Scottish Television - formerly Scottish Media Group). We provide a wide range of services for STV, including design, statutory applications, project management and quantity surveying/cost management. Projects include fitting out new television studios, control rooms, edit suites and offices in locations such as Glasgow, Edinburgh, Dundee, Aberdeen and London.     

We also continue to provide quantity surveying services for a variety of other clients in Scotland, predominantly in the Central Belt.

Our core principle is the provision of accurate cost management, guidance and control at every stage of a project.

Colin Brodie

Angus Rennie FRICS

Colin Brodie FRICS

Senior Partner