• Welcome to the LTOA website

    Welcome to the LTOA website

    The London Tree Officers Association (LTOA) constitutes the professional & technical voice for London's trees & woodlands Read More
  • Become a Sponsor

    Become a Sponsor

    The LTOA relies on subscriptions from its members and sponsorship to operate. Read More
  • CAVAT

    CAVAT

    Capital Asset Value for Amenity Trees (CAVAT). CAVAT provides a method for managing trees as public assets rather than liabilities Read More
  • How to Become a Member

    How to Become a Member

    Members can attend, for free, the the LTOA meetings which are held four times a year and cover a wide range of tree related matters. Read More
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  • Welcome to the LTOA website

    Welcome to the LTOA website

    The London Tree Officers Association (LTOA) constitutes the professional & technical voice for London's trees & woodlands Read More
  • Become a Sponsor

    Become a Sponsor

    The LTOA relies on subscriptions from its members and sponsorship to operate. Read More
  • CAVAT

    CAVAT

    Capital Asset Value for Amenity Trees (CAVAT). CAVAT provides a method for managing trees as public assets rather than liabilities Read More
  • How to Become a Member

    How to Become a Member

    Members can attend, for free, the the LTOA meetings which are held four times a year and cover a wide range of tree related matters. Read More
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The London Tree Officers Association

Welcome to the LTOA website. The London Tree Officers Association (LTOA) constitutes the professional & technical voice for London's trees & woodlands. Its aim is to enhance the management of the Capital's trees.

We hope that you find the LTOA website both interesting & informative. If you have any questions, comments or suggestions, please do not hesitate to contact us.

Lyndal and DavidDuring a recent visit to London, I had the pleasure of meeting two dedicated LTOs, Richard Edwards (Croydon) and David Houghton (Camden). I’m an urban forester from Brisbane City. Brisbane City Council covers just over 1300 square kilometers, includes around 1 million residents, an estimated 575,000 street trees and total tree canopy cover of 46%.

Like many other international urban tree managers I’ve had the privilege to meet over my 20 years in local government, Richard and David were keen to share their local successes and challenges.

I was particularly interested in the role of local government in tree disputes between neighbours, and the processes and learnings coming from the UK High Hedges legislation. The Neighbourhood Dispute Resolution (NDR) Act (www.neighbourhooddisputes.qld.gov.au) has recently commenced in my home state of Queensland. Although our NDR covers disputes about property damage, injury and loss of enjoyment, including obstruction of sunlight and pre-existing views, a separate Tribunal, with appointed, qualified Tree Assessors, are the decision makers, rather than local authorities.

Stunning green wall unveiled at Edgware Road Tube stationAn innovative 200 square metre green wall on a central London Tube station wall designed to trap pollution on one of London’s busiest roads, was unveiled today.

The visually stunning green wall has taken just a month to install and, as well as having practical environmental benefits, is an attractive leafy addition to Marylebone Road.

It features a total of 15 plant varieties crafted into a multi-coloured and patterned design. Studies across Europe and the USA have shown the potential of vegetation, including trees and plants, to trap PM10. The air quality benefits of this wall will be monitored by scientists from Imperial College London.

Chelsea Flower Show 2011 Chelsea Flower Show 2011

Two LTOA members Barcham Trees and Hillier Nurseries were at the Chelsea Flower show May 2011.

Tree ExchangeTree Exchange is part of a new initiative encouraging Londoners to gather seeds to grow new trees – for their own patch or community, or to offer to other neighbourhoods who need them.

Simply fill in the online form to list your spare trees or place a trees wanted advert if you need trees for a community project. Londoners can then search the Tree Exchange using the search function or by filtering the Tree Exchange by London borough.

To fill in the 'Give Away' or 'Wanted' form, simply click on the 'POST AN AD' button. Please note that it can take up to 2 working days for your advert to appear on the Tree Exchange.

Once you have found a good home for your spare trees or have found the trees that you needed for your patch or project, please email This email address is being protected from spambots. You need JavaScript enabled to view it. requesting removal of your advert.

Tree Exchange is a free-tree community initiative and no money should be involved in the exchange of trees.

National Tree Officers Conference 2017

The National Tree Officers Conference will be held on 8 November 2017 in Telford, Shropshire with speakers sharing their experience and best practice within Local Authority Arboriculture. Anyone is able to attend and booking information is available here.

The LTOA website is sponsored by:

How to Become a Member

Members can attend, for free, the LTOA meetings which are held four times a year and cover a wide range of tree related matters.

Click here to find out how to become an associate member