Planning conditions — what they mean and what you must do

Planning conditions are requirements attached to a planning permission by the local planning authority. They form part of the permission and are legally binding. Failing to comply with a planning condition is a breach of planning control and can result in enforcement action, including a requirement to undo completed works. Planning conditions typically fall into two categories. Pre-commencement conditions must be discharged — that is, formally approved by the local planning authority — before any work starts on site. Ongoing conditions must be complied with during or after construction. Pre-commencement conditions are the ones most commonly missed. It is not enough to simply read the condition and believe you have complied with it — you must submit the required information to the local planning authority and receive their written approval before breaking ground.

Conditions vary considerably depending on the nature of the development and the local planning authority's requirements. The most common types include: Materials conditions require you to submit details of the external materials to be used — brick colour, roof tile type, window frame material — for approval before work starts. This is common in conservation areas and areas of outstanding natural beauty. Archaeology conditions may require a preliminary archaeological investigation or watching brief during groundworks, particularly in areas of known archaeological interest. This can add both cost and time to a project. Ecological conditions may require surveys for protected species — bats, great crested newts, badgers — at specific times of year before work commences. If protected species are found, a mitigation strategy must be agreed with Natural England before work can proceed. Drainage conditions often require details of surface water drainage design to be approved before work starts, particularly following the introduction of mandatory sustainable drainage requirements. Access and highway conditions may require improvements to the site access or adjacent road before development begins. These can be significant in cost. Landscaping conditions typically require a landscaping scheme to be submitted and approved, sometimes before occupation rather than before commencement.

To discharge a pre-commencement planning condition, you must submit a formal application to your local planning authority. In England, this is done through the Planning Portal. There is a fee for discharge of condition applications — currently £34 per request in England, though this may change. Your application must include the information required by the condition — drawings, material samples, reports, or whatever the condition specifies. The local planning authority has eight weeks to determine your application, though in practice it often takes longer. Only once you have received written confirmation that the condition has been discharged can work lawfully commence — or proceed to the stage that the condition relates to. Keep copies of all discharge of condition approvals with your planning documentation. You will need these if you sell the property or if your building control officer requires evidence of compliance.

Carrying out development in breach of a planning condition is a breach of planning control. The local planning authority has powers to take enforcement action, including issuing an enforcement notice requiring you to remedy the breach. In serious cases, this could mean demolishing completed work — an outcome that is rare but not unheard of. More commonly, enforcement action requires the submission and approval of retrospective information, with potential additional conditions and costs. Breaches of planning conditions also affect the sale of property. Solicitors acting for buyers routinely check planning conditions and may raise requisitions if conditions have not been properly discharged. This can delay or complicate a sale. The general rule is that enforcement action for breaches of condition can be taken for four years for operational development (building work) and ten years for change of use. After these periods, the breach may become immune from enforcement — but relying on this is a significant risk.

Many smaller residential developments — including some extensions, loft conversions, and outbuildings — fall within permitted development rights, meaning they can be carried out without applying for planning permission. However, permitted development rights have limits in terms of size, position, and materials, and they may be restricted or removed in certain areas including conservation areas, listed buildings, and Article 4 Direction areas. Before assuming your project benefits from permitted development rights, check with your local planning authority or obtain a Lawful Development Certificate. This is a formal confirmation that the development is lawful and provides legal certainty — without it, you cannot be sure that planning permission is not required.