Designated 1973; appraisal February 2015The Trent Park Conservation Area (Enfield, CA18)
Trent Park, reference CA18, is one of Enfield’s 22 conservation areas and is separate from the Hadley Wood Conservation Area. It was designated in 1973 and extended to include Cockfosters Cottages in 1990 and the area around Chalk Lane in 1993. Its character appraisal, first adopted in 2006 and reviewed in February and March 2013, was approved in February 2015, with separate management proposals. It describes five character areas, including Cockfosters Cottages and Chalk Lane with the cricket ground, and roughly eighty residential addresses, and says about half of the conservation area is on the register of parks and gardens at grade II.
Planning Data: Trent Park Conservation Area (CA18), London Borough of Enfield · Enfield: conservation areas · Enfield: Trent Park conservation area · Enfield: Trent Park Conservation Area Character Appraisal, approved February 2015 (PDF) · Enfield: Trent Park Conservation Area Management Proposals, approved February 2015 (PDF) · Planning Data: Trent Park, registered park and garden, Grade II, list entry 1000484
The appraisal says designation brings a general control over the demolition of unlisted buildings and over lopping or felling trees above a certain size, while some changes to family houses do not normally need planning permission and an Article 4 direction can withdraw particular permitted development rights. The management proposals say development affecting listed or locally listed buildings, buildings identified as making a positive contribution, or buildings affecting their setting, should normally use matching traditional historic materials and detailing, and that mass-produced materials such as uPVC and concrete roof tiles will not normally be appropriate within the conservation area.
Enfield: Trent Park Conservation Area Character Appraisal, approved February 2015 (PDF) · Enfield: Trent Park Conservation Area Management Proposals, approved February 2015 (PDF)
Designated December 1968; appraisal January 2007The Monken Hadley Conservation Area (Barnet, CA01)
Across the boundary, Barnet’s Monken Hadley Conservation Area was designated in December 1968 as one of the first four in the borough, and its character appraisal was adopted in January 2007. Barnet’s boundary map, dated November 2023, gives its last amendment as 15 January 2007. The boundary takes in the part of the former Trent Park West conservation area that lies in Barnet, the rest being in Enfield, and the appraisal says the greater part of the conservation area is covered by Green Belt.
Barnet: Monken Hadley Conservation Area Character Appraisal Statement, adopted January 2007 (PDF) · Barnet: Monken Hadley Conservation Area (CA01) boundary map, November 2023 (PDF) · Planning Data: Monken Hadley Conservation Area (CA01), London Borough of Barnet
In its Trent Park West area, the appraisal lists the offices at 2 to 6 and 8 Games Road, the Cock and Dragon public house on the corner of Chalk Lane and Games Road, 4, 6, 8 and 10 Verwood Drive, West Farm Court and 1 Gatcombe Way. It recorded Ludgrove Hall, Nos. 10 to 18 Games Road and West Farm Court as locally listed in 2007, so ask Barnet whether they remain on its current list. Its guidance says extensions should normally be subordinate to the main building, and that windows, doors and decorative features should generally match the existing building or show a creative use of high-quality contemporary materials.
Barnet: Monken Hadley Conservation Area Character Appraisal Statement, adopted January 2007 (PDF)
Directions of 2006 and 2007Article 4 directions on each side of the boundary
Enfield made Article 4(2) directions on 26 January 2006 covering parts of eleven conservation areas, and the confirmed direction was sealed on 27 June 2006. In the Trent Park Conservation Area it covers 305–319 and 323–345 (odd) Cockfosters Road, the Cockfosters Cottages group. For elevations facing or visible from a highway or open space, it withdraws permitted development rights for enlargements and other alterations, including installing or replacing windows and doors, replacement roof coverings in a different material, roof lights, guttering of a new design or in different materials, and rendering or cladding, and for roof additions or alterations, porches, hard surfaces, satellite antennae, gates, fences and walls and their demolition, and painting exposed brickwork or unpainted render. On every elevation, it also covers demolishing or replacing chimneys.
Enfield: Article 4 directions in conservation areas · Enfield: Enfield Borough Conservation Areas Article 4(2) Direction 2006 (as confirmed), sealed 27 June 2006 · Planning Data: Trent Park Article 4 direction area (AD01), London Borough of Enfield
Enfield’s Article 4 map for Trent Park, dated 22 December 2005, is for guidance only: the schedule decides which properties are covered. Enfield also has a borough-wide direction under which changing a dwelling in use class C3 to a house in multiple occupation in class C4 needs planning permission; that concerns a change of use, not building work.
Enfield: Trent Park Conservation Area Article 4(2) map, Plan 8, for guidance only (scanned PDF) · Enfield: Enfield Borough Conservation Areas Article 4(2) Direction 2006 (as confirmed), sealed 27 June 2006 · Enfield: Article 4 directions, change of use to a house in multiple occupation · Planning Data: Enfield borough-wide Article 4 direction area for houses in multiple occupation (AD17)
In Barnet, the Monken Hadley Article 4(2) direction was approved at a Barnet Cabinet meeting on 15 January 2007, and planning data maps its Area 15 at the Cockfosters end, near Games Road and Chalk Lane. Where the works front a highway, waterway or open space, it withdraws rights for enlargements and other alterations of a house, roof-slope alterations, porches, outbuildings, enclosures and pools, hard surfaces, satellite antennae, gates, fences and walls and their demolition, and exterior painting; the erection, alteration or removal of a chimney is covered whether or not it fronts such a location. Barnet also has an Article 4 direction on small houses in multiple occupation, recorded in planning data from 29 May 2016.
Barnet: Monken Hadley Conservation Area Article 4(2) direction, approved 15 January 2007, A4D9 (scanned PDF) · Planning Data: Article 4(2) for Monken Hadley Conservation Area (A4D9), from 15 January 2007 · Planning Data: Article 4(2) for Monken Hadley Conservation Area, Area 15 · Planning Data: Barnet small houses in multiple occupation Article 4 direction, from 29 May 2016
Enfield DMD 2014; Barnet Local Plan 2025Read the appraisals against each council’s plan
Enfield’s adopted plans include the Core Strategy, adopted in November 2010, and the Development Management Document, formally adopted on 19 November 2014 and used for applications from small householder schemes upwards. DMD 44 says applications affecting heritage assets or their setting should include a Heritage Statement. DMD 82 says inappropriate development in the Green Belt will not be permitted; planning data’s Enfield Green Belt record takes in the war memorial’s official point but not the station’s, so check whether the address itself lies in the Green Belt. The DMD lists Enfield Chase and Trent Park among Enfield’s Areas of Special Character, where DMD 84 says new development will only be permitted if features or characteristics key to maintaining the quality of the area are preserved and enhanced; check whether the address lies in one.
Enfield: adopted plans · Enfield: Development Management Document adoption statement (adopted 19 November 2014) · Enfield: Development Management Document, adopted November 2014 · Planning Data: Enfield Green Belt record · Planning Data: Cockfosters War Memorial, Grade II, list entry 1443880 · Planning Data: Cockfosters Underground station, Grade II, list entry 1358718
A new Enfield Local Plan was submitted for examination on 6 August 2024 and is not adopted: planning data records it at examination, and the Inspector’s post-hearing advice of 15 June 2026 says final conclusions on soundness and legal compliance will be given in the final report. Treat it as an emerging plan, not adopted policy.
Enfield: new Enfield Local Plan and its examination · Planning Data: Enfield Local Plan (Regulation 24) 2024, at examination · Enfield Local Plan examination: Inspector’s post-hearing advice IN14, 15 June 2026
For a Barnet address, planning data records the Barnet Local Plan 2021–2036 as adopted from 4 March 2025; the 2007 Monken Hadley appraisal predates it, so test a proposal against the current plan. Enfield’s Local Heritage List, published in 2024 to replace the 2018 list and corrected in January 2025, includes Christ Church on Chalk Lane and the Cockfosters Water Tower; Enfield says local listing imposes no extra consent requirement but can influence planning decisions.
Planning Data: Barnet Local Plan 2021–2036, adopted 4 March 2025 · Barnet: Monken Hadley Conservation Area Character Appraisal Statement, adopted January 2007 (PDF) · Enfield: local heritage · Enfield: Local Heritage List, December 2024 (PDF)
Before ordering windows, renewing a roof, changing a front boundary or booking any excavation at a Cockfosters address, confirm whether Enfield or Barnet is the council and which consents the property and the proposal need. Planning permission, listed building consent, Building Regulations approval, lease consent and Party Wall procedures are separate regimes, and approval under one settles none of the others. Where Enfield’s 2006 schedule or Barnet’s Monken Hadley direction applies, work whose permitted development rights it withdraws needs planning permission, and conservation-area status brings its own checks, such as six weeks’ notice before certain work on trees.