There are over 10,000 conservation areas in England. If your property is in one — or you are considering buying one — understanding what the designation means in practice is essential.
What Is a Conservation Area?
A conservation area is an area of special architectural or historic interest, the character or appearance of which it is desirable to preserve or enhance. Local authorities have the power to designate conservation areas under the Planning (Listed Buildings and Conservation Areas) Act 1990. Once designated, a range of additional planning controls apply to properties within the area.
What Controls Apply in a Conservation Area?
The most significant practical implication of conservation area designation is the restriction of permitted development rights. Works that would ordinarily not require planning permission — replacing windows, adding a porch, installing solar panels on a front roof slope, cladding external walls — require planning permission in a conservation area.
In addition, any proposal to demolish a building in a conservation area requires conservation area consent. Trees in conservation areas are protected: you must give the local authority six weeks' notice before carrying out any works to a tree, giving them time to make a Tree Preservation Order if they choose.
Development proposals within or affecting the setting of a conservation area must preserve or enhance the character and appearance of the area. Applications that fail this test are likely to be refused.
Article 4 Directions in Conservation Areas
Many conservation areas are also subject to Article 4 Directions, which remove additional permitted development rights beyond the baseline restrictions that apply to all conservation areas. Common Article 4 Directions in conservation areas restrict changes to windows and doors, requiring like-for-like replacement or specific materials; alterations to roof materials; and changes to boundary walls and fences.
Article 4 Directions must be checked separately from conservation area designation. A property can be in a conservation area without an Article 4 Direction, or subject to an Article 4 Direction that removes rights not already restricted by the conservation area designation.
Conservation Areas and Property Value
Conservation area designation is generally considered positive for property values. The restrictions that limit what owners can do to their properties also limit what their neighbours can do — preserving the character and appearance that makes the area desirable in the first place. Research by Historic England suggests that properties in conservation areas achieve a premium over comparable properties outside them.
However, the planning restrictions can add cost and complexity to any works you want to carry out. Materials that meet conservation area requirements are typically more expensive than standard alternatives. Applications that require full planning permission take longer and cost more than permitted development. These factors should be weighed against the value premium when making a purchasing decision.
How to Check Whether a Property Is in a Conservation Area
LandLens® checks conservation area status for any UK postcode as part of every site constraint report, drawing on data from planning.data.gov.uk. The report identifies not only whether the postcode falls within a conservation area, but the name of the area and the relevant local authority, so you can look up the conservation area appraisal and management plan if you want to understand the specific character and appearance requirements for that area.