Welcome to GNA

Innovative, flexible, trusted building and construction advice.

Building Surveyors, Quantity Surveyors, Safety Advisors and Project Managers, GNA is a one-stop multidisciplinary practice with a 30 year track record in delivering quality advice to the building and construction industry.

Based in the Midlands, we are able to cover the whole of the UK and have also worked in the European Union. Together, with our architectural and structural design partners, we deliver our client’s expectations on the most demanding of projects.

Quantity Surveying

We can form bespoke teams for a whole range of project types from housing to fire stations, sport, leisure, retail, military, visitor attractions and civil or services contracts. From the inception of a project to final account, our Quantity Surveyors specialise in accurate and timely cost and contractual advice.

Our aim is always to ensure that our clients get maximum value for money. We are experienced in the traditional QS role as well as design and build (Employers Agent), target cost and management contracts.

Our QS services include:

  • Building costs and budgets
  • Feasibility cost studies
  • Detailed cost plans
  • Life cycle costing
  • Value engineering
  • Contractor procurement
  • Tender documentation
  • Contracts and contract documentation
  • Bonds and warranties
  • Builders Quantities
  • Cost management throughout the construction phase
  • Funding and grant applications
  • Contract Administration
  • Project Management / Project Coordination
  • Insurance Reinstatement Cost Reports 

Building Surveying

The Building Surveying department delivers valuable advice for building owners, landlords, tenants and purchasers. Whether you are a landlord, new or existing tenant or buying a property, the advice of a Building Surveyor can prove invaluable.

We specialise in

CDM / Health and Safety

Our Construction Health and Safety department is well known for providing clear, accurate and helpful advice on all issues relating to CDM and construction health and safety.

Our staff are all NEBOSH trained but also have other construction and management related qualifications. This makes us the ideal choice for assisting you discharge your duties under CDM 2015 as a Principal Designer, Contractor or Client.

GNA are members of the Institute of Construction Health and Safety and are SSIP Accredited Principal Designer’s.

We provide


In addition to the Quantity and Building Surveying services we provide, we also specialise in the financial management of conservation, restoration and repair contracts.

We specialise in providing detailed and accurate pre-tender cost assessments and cash flow profiling (a requirement for most grant applications to English Heritage and other funding bodies), cost information and valuations for listed buildings insurance and fire loss assessments.

We can assist you with:

  • Insurance and fire loss assessments for listed buildings
  • Pre-tender estimates
  • Funding and grant applications

Aerial Surveying

The Building Surveying department is now able to perform aerial surveys using the advanced DJI Inspire 2 drone.

We can offer detailed surveys with unprecedented coverage allowing our RICS accredited surveyors to access areas previously deemed to dangerous or costly to reach by conventional methods.

We provide: