Planning application in to build a house in Christchurch spinney

22 Jan 2026
Written by Robin Bishop

Above is a visualisation of the new 6-bedroom house proposed by its designers, Alan Cox Architects, in secluded woodland barely 200 metres from Barnet High Street. The site is described by the applicants as ‘unkempt’, and by locals petitioning against development as a ‘wildlife haven’. The site is within the Monken Hadley Conservation Area and close to the Green Belt. Some trees have individual Tree Preservation Orders; however all the trees are protected by the conservation area status.

The application is a test of Barnet Council’s commitment to protecting the environment. You can comment on the proposals until Thursday 5 February – see below for details.

Barnet Council declared a Climate and Biodiversity Emergency in 2022. Barnet Labour’s Green Manifesto promised to ‘Protect ALL existing green spaces in the Borough’. And its recently-adopted Local Plan contains policies and supplementary planning documents specifically to protect green spaces. Mayor Khan has similar planning policies, and recently consulted on London’s first Nature Recovery Plan to reverse biodiversity loss.

The site is mainly established deciduous woodland. Although small in area its ecological value is great because it provides a vital undisturbed ‘green corridor’ for the transit of insects, animals and flying creatures between the Old Fold Manor golf course and Hadley Green, both of which are in the Green Belt. It is not managed, however, and its biodiversity is limited by the dominance of cherry laurel and bramble on the east side of the site.

In 2024 the Council authorised the sale of part of the spinney that it owns for £430,000, subject to the buyer obtaining planning consent.

The planning application is by Christchurchgrove Ltd, a developer in a joint venture with Barnet Recreation Trust (BRT), which owns the other part of the present site. BRT is a charity that supports ‘the provision of facilities in the interest of social welfare for recreational and leisure-time occupation’ locally.

Both organisations would profit from the sale of the substantial (567 sq m) new house and garden that would occupy about a third of the site. The house-owner would be responsible for the rest of the (0.4 hectare / 1 acre) site, which includes almost all the existing protected trees. (See plan below by Helene Landscape and Garden Design).

A public consultation on the proposals was held before Christmas, and Nick Jones’s report on that can be found here. You can also read my earlier post on the issues this project raises for nature protection.

Ideally, the Barnet Society would like to see Christchurch spinney and its wildlife conserved, enhanced and protected, with a minimum of landscaping to enable some public access. In practice, that would require funding and organisation that the Council can’t currently provide. It’s a pity no effort seems to have been made to find a community group or charity to take it on.

Although we’d prefer no house to be built at all, we wouldn’t object to permission being given for one on the least ecologically valuable part of the site on certain conditions:

  • The house and garden must be in keeping with their natural setting.
  • They must be built to high environmental standards.
  • The site as a whole must be subject to a long-term management plan to safeguard and enhance the environment.

The scheme the Society was shown last year fell short on all these counts. To the developer’s credit, however, it has been improved in the light of our comments. Overall, therefore, we’re neutral about the application. But because we aren’t yet convinced about a number of critical details, we’ll submit a list of conditions that must be met before approval.

How you can comment

Have your say one of these ways:

  1. on the Council’s planning portal (ref. no. 26/0116/FUL) via the Comments tab;
  2. email comments direct to planning.consultation@barnet.gov.uk (cc tania.sacordeiro@barnet.gov.uk); or
  3. post your comments to the Planning Officer: Tania Sa Cordeiro, Planning and Building Control, Barnet Council, 2 Bristol Avenue, Colindale, NW9 4EW.

In the cases of 2 & 3, be sure to include:

  • the application ref. no. (26/0116/FUL) clearly at the top
  • the site address (Land Opposite 15 Sunset View Barnet EN5 4LB) and
  • your name, address and postcode.

Sending a copy to our MP dan.tomlinson.mp@parliament.uk and to your local Councillors will increase the effectiveness of your comments.

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