BS 5837:2012 tree surveys

Are you a developer looking for a BS 5837:2012 tree survey to support a planning application? Are you planning development near trees and require a supporting tree report? Do you need expert advice in navigating the local authority planning process?

BS 5837:2012 tree surveys, and their associated reports, are a specialised service used in the process of proposing building work near trees. Our experience has been gained through many years of working with the various revisions of British Standard 5837, from its early days as BS5837:1980, through the major changes in BS5837:1991 and BS5837:2005, to its most recent update in BS5837:2012 Trees in relation to design, demolition and construction.

Our BS 5837:2012 tree surveys help you to maximise the value of your site. This includes, on the one hand, our highlighting where tree protection efforts are worthwhile, and on the other hand, where attempting to save a tree which may appear healthy is in fact a waste of your time and effort. We work with you in a collaborative way to increase the chances of a satisfactory outcome from the planning process.

A BS 5837:2012 tree survey includes, as a matter of course:

  • Assessment of trees according to the BS5837:2012 value categories (A1/A2/A3, B1/B2/B3, C1/C2/C3, and U)
  • Calculation of Root Protection Areas (RPAs) for individual trees
  • Estimation of safe useful life expectancy of trees

We produce architect-friendly, industry-standard AutoCAD plans highlighting tree value and identifying by colour-coding where special methods of construction to protect trees are proposed. Our tree reports speak the same professional language as local authority planning and tree departments. Looking from another perspective, we have also built up good relationships with numerous tree-conscious architects, and can therefore provide recommendations where needed.

Get in touch with us to book in a BS 5837:2012 survey at your convenience.


Melina Place, NW8 9SA

A state-of-the-art garden pavilion wing of the existing historic house was installed within a couple of metres of a row of mature lime trees. We supervised determination of appropriate pile locations, agreeing this with Westminster City Council.

Templewood Avenue, NW3

We advised on a rear extension to a property extremely close to a retained beech tree. This project included cooperation on landscaping with BBC Radio 4’s Bunny Guinness.

Daleham Gardens, NW3

We advised on placement and construction of a garden office very close to a veteran black poplar tree.

Hanover Terrace, NW1 4RJ

Planning approval was achieved for a triple-storey basement scheme at this premier dwelling in Regent’s Park, involving retention of most of the trees in the historic garden. We negotiated with Westminster City Council and advised on the elements of the subsequently approved landscape design.

St. Edmunds Terrace, NW8 7QH

Additional stories were added to this prime-location apartment block near Regent’s Park. We advised on the safety and retention of a veteran ash tree with bat-roost features.

Hamilton Terrace, NW8 9RG

A basement rear extension was added to this premier dwelling. The rear garden was heavily treed; careful evaluation of the condition of a large but declining tree was necessary.