Appraisals of January and July 2007Two conservation areas, two appraisals
Monken Hadley (CA01) was designated in December 1968, one of Barnet’s first four conservation areas, and extended in February 1979 to the northern end of Chipping Barnet High Street. Barnet’s map, dated November 2023, gives its last amendment as 15 January 2007 and marks the borough boundary. The Character Appraisal Statement, adopted in January 2007 with a management plan, divides the area into ten sub-areas, from Hadley Highstone and Hadley Green to Barnet High Street, Camlet Way and Monken Hadley Common. Its guidance says extensions should normally be subordinate to the main building and need thoughtful design at the rear as well as the front, and that materials should match the existing building unless a contrast is intended.
Planning Data: Monken Hadley Conservation Area (CA01), London Borough of Barnet · 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 gives Wood Street (CA03) a designation date of 25 April 1969; the appraisal says it was extended in 1979, and Barnet’s Article 4 note records that after a council sub-committee on 7 June 2007 it took in 87 to 97 (odd) High Street, although Barnet’s November 2023 map still gives a last amendment of 1 October 1969. Its appraisal, adopted in July 2007, sets out five character areas, gives unlisted ‘positive’ buildings a general presumption in favour of retention and was to be reviewed every five years. Barnet’s open data lists no later appraisal for either area.
Planning Data: Wood Street Conservation Area (CA03), London Borough of Barnet · Barnet: Wood Street Conservation Area Character Appraisal Statement, adopted July 2007 (PDF) · Barnet: Article 4 directions in Wood Street Conservation Area, A4D13, with the 2007 boundary note (partly scanned PDF) · Barnet: Wood Street Conservation Area (CA03) boundary map, November 2023 (PDF) · Barnet open data: conservation area appraisals and boundary maps
Directions recorded 1972 and 2007Article 4 directions, each for mapped land
In Monken Hadley, Planning Data records direction A4D8 from 8 September 1972, mapped as two areas. The appraisal says that where these Article 4(1) directions apply, planning permission is needed for extensions and alterations, including doors, windows, architectural detail, dormers, rooflights and changing roof tiles, and for exterior painting, porches, hardstandings, new access to a highway, oil tanks and gates, fences and walls.
Planning Data: Article 4 for Monken Hadley Conservation Area (A4D8), from 8 September 1972 · Planning Data: Article 4 for Monken Hadley Conservation Area, Area 1 · Barnet: Monken Hadley Conservation Area Character Appraisal Statement, adopted January 2007 (PDF) · Barnet: Article 4 directions in Monken Hadley Conservation Area, A4D8, with 2013 map (scanned PDF)
An Article 4(2) direction, A4D9, approved by Barnet’s Cabinet on 15 January 2007, is mapped as 15 areas. Where the work fronts a highway, waterway or open space, planning permission is needed for alterations including windows, doors and facing materials, roof-slope changes, porches, outbuildings and pools, hard surfaces, satellite antennas, gates, fences and walls and their demolition, and exterior painting; erecting, altering or removing a chimney is listed without that frontage condition.
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 1 · Barnet: Monken Hadley Conservation Area Character Appraisal Statement, adopted January 2007 (PDF) · GPDO 2015, Schedule 2 Part 1: householder permitted development · legislation.gov.uk: GPDO 2015, Schedule 2 Part 2: gates, fences and walls, access and exterior painting · legislation.gov.uk: GPDO 2015, Schedule 2 Part 11, Class C: demolition of gates, fences and walls
Wood Street’s direction, A4D13, records approvals in 1970, 1974 and 1981, and Planning Data maps it as two areas. The appraisal says it covers most of the conservation area and brings replacement windows and doors, roof extensions and rooflights, new wall materials and painting, small extensions such as front porches, outbuildings, oil tanks, satellite dishes, the removal and replacement of boundaries other than hedges, front-garden hard standings and crossovers, and most new gates, fences and walls under planning control. In 2007 Barnet removed it from 2 to 30 (even) West End Lane, The Croft in Blenheim Road and 6 and 8 Queens Road.
Barnet: Article 4 directions in Wood Street Conservation Area, A4D13, with the 2007 boundary note (partly scanned PDF) · Planning Data: Article 4 for Wood Street Conservation Area (A4D13), from 8 September 1972 · Planning Data: Article 4 for Wood Street Conservation Area, Area 1 · Barnet: Wood Street Conservation Area Character Appraisal Statement, adopted July 2007 (PDF)
Barnet’s direction on small houses in multiple occupation also overlaps both conservation areas; it concerns use as a small house in multiple occupation, not alterations to a home. An Article 4 direction means the works need a planning application, not that they will be refused.
Planning Data: Article 4 small houses in multiple occupation, Area 1, from 29 May 2016 · Barnet open data: legal orders for Article 4 directions · When planning permission is required
Local Plan adopted 4 March 2025Read the 2007 appraisals alongside the 2025 Local Plan
Planning Data records the Barnet Local Plan 2021–2036 as adopted from 4 March 2025. Both appraisals were written under the 2006 Unitary Development Plan, so use their descriptions of buildings and streets as character evidence and ask Barnet which current policies a proposal will be judged against.
Planning Data: Barnet Local Plan 2021–2036, adopted 4 March 2025 · Barnet: Monken Hadley Conservation Area Character Appraisal Statement, adopted January 2007 (PDF) · Barnet: Wood Street Conservation Area Character Appraisal Statement, adopted July 2007 (PDF)
Planning Data finds 52 list entries intersecting the Monken Hadley Conservation Area, five of them Grade II*, and 31 intersecting Wood Street, one Grade II*, with none at Grade I. The Monken Hadley appraisal also names locally listed buildings such as Ludgrove Hall and Monkenhurst, and in 2007 Barnet added five Wood Street area buildings, including the Old Library and 85 High Street, to its local list. Ask Barnet whether a building is on its current local list.
Planning Data: listed buildings intersecting the Monken Hadley Conservation Area · Planning Data: listed buildings intersecting the Wood Street Conservation Area · Barnet: Monken Hadley Conservation Area Character Appraisal Statement, adopted January 2007 (PDF) · Barnet: Article 4 directions in Wood Street Conservation Area, A4D13, with the 2007 boundary note (partly scanned PDF)
Historic England’s registered battlefield for the Battle of Barnet of 1471 overlaps the Monken Hadley Conservation Area, and the 2007 appraisal notes it is the only one on the register in Greater London. Historic England also maps an Archaeological Priority Area overlapping both conservation areas, and another, mostly inside Monken Hadley, around a probably prehistoric bank and ditch at Hadley Wood. In 2007 the appraisal recorded Hadley Green as a Site of Metropolitan Importance for Nature Conservation.
Planning Data: Battle of Barnet 1471, registered battlefield (Historic England) · Barnet: Monken Hadley Conservation Area Character Appraisal Statement, adopted January 2007 (PDF) · Planning Data: Historic England Archaeological Priority Area 77418 · Planning Data: Historic England Archaeological Priority Area 77126, bank and ditch at Hadley Wood
Green Belt; NPPF of 17 August 2026Green Belt is a separate question
The Monken Hadley appraisal records about three quarters of the conservation area as Green Belt and over half of it as open fields and recreational land, and a Planning Data search finds the current Barnet Green Belt record, part of the London Green Belt, overlapping it but none in Wood Street. Green Belt is a separate designation from the conservation area, with its own national policy test. Check with Barnet whether the Green Belt boundary takes in your house or garden.
Barnet: Monken Hadley Conservation Area Character Appraisal Statement, adopted January 2007 (PDF) · Planning Data: Barnet Green Belt record · GOV.UK: National Planning Policy Framework, Chapter 13: Protecting Green Belt land (GB1–8)
The National Planning Policy Framework, published on 17 August 2026, treats development in the Green Belt as inappropriate unless it falls within listed categories, and inappropriate development should not be approved except in very special circumstances. The categories include the reuse, extension or alteration of a lawful building of permanent and substantial construction, provided an extension or alteration does not result in a disproportionate increase in size over the original building, as it stood on 1 July 1948 or as first built if later.
GOV.UK: National Planning Policy Framework, published 17 August 2026 · GOV.UK: National Planning Policy Framework, Chapter 13: Protecting Green Belt land (GB1–8)
Before ordering windows, renewing a roof, painting a front, changing a boundary or booking any excavation at a High Barnet or Monken Hadley address, establish 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. On their mapped land the Article 4 directions bring specified works under planning control; conservation-area status brings its own checks, such as six weeks’ notice before certain work on trees; and where the Green Belt applies, national policy weighs an extension that needs planning permission against the original building.