Consent Next Door: Selling Your Home Beside an Approved Scheme in 2026

A planning consent on a neighbouring site rarely arrives quietly. It may be a modest rear extension, a change of use, or a larger redevelopment of a garage court or backland plot. Whatever the scale, the moment a decision notice is issued, sellers in the immediate vicinity begin to ask the same question: what does this do to my sale?

The answer is rarely uniform. Estates Mitchell has acted for sellers across many planning cycles since 1998, and the consistent lesson is that the effect on a sale depends less on the drama of the proposal than on the discipline of the assessment. A measured approach protects value; an anxious one can create a discount where none was warranted.

Start with the decision notice, not the rumour

Obtain the decision notice and the approved drawings from the local planning authority. Read the description of development carefully. A full permission is not the same as an outline permission, and an outline consent may leave matters such as scale, layout and access to a later reserved matters application. Check the conditions: they often control construction hours, delivery routes, boundary treatment, drainage and the hours of use once complete.

Establish whether the permission has been implemented. A consent that has been commenced but not completed presents a different risk from one that may lapse. If the scheme is still at application stage, note the target determination date and whether a committee decision is likely. Buyers and their solicitors will make these checks in any event; a seller who has the file in order is better placed to answer questions without delay.

Light, privacy and outlook: what can be measured

Planning permission does not extinguish a neighbour's right to light, nor does it automatically authorise an unacceptable loss of privacy. These are separate legal and practical questions. For selling purposes, however, the useful exercise is to compare the approved drawings with the existing arrangement: distance from the boundary, ridge or eaves height, the position of windows, and whether a terrace or balcony will overlook a garden or a principal room.

Daylight and sunlight assessments are sometimes submitted with applications. They are technical documents, and they do not always reflect how a room will feel. A sensible approach is to identify the rooms most likely to be affected, consider the time of day at which they are used, and describe the change in plain terms. Avoid relying on rules of thumb such as the so-called 45-degree guide; local policies vary, and the approved plans are the only reliable basis for comment.

Access, noise and the years of construction

A completed scheme may bring permanent changes: bin stores, plant equipment, additional vehicle movements, or a new access point. These can matter more to some buyers than the visual bulk of the building itself. Read the conditions on construction management and check whether they are enforceable in practice.

Construction is usually temporary, but it can span a selling window. Scaffolding, skips, party wall notices under the Party Wall etc. Act 1996, and restricted parking may affect viewings and the atmosphere of the street. If works are imminent, that is a timing consideration rather than a permanent defect. If the scheme is complete, the relevant question is how the building performs in use, not how it looked during the build.

Disclosure: the TA6, the particulars and the duty to be accurate

Sellers are required to answer the Law Society's Property Information Form (TA6) truthfully. Questions about disputes, notices and neighbours' proposals should be answered with care. The Consumer Protection from Unfair Trading Regulations 2008 also require estate agents' particulars not to be misleading, and the National Trading Standards material information guidance expects relevant planning matters to be handled consistently.

This does not mean every neighbouring application must be printed on the front of the brochure. It does mean the position should be recorded accurately in the file and disclosed where a buyer would reasonably regard it as material. Buyers routinely search the Planning Portal. A seller who appears to have concealed an approved scheme creates more damage than the scheme itself.

Talking to buyers without creating panic

Use factual, proportionate language. Distinguish between a proposal, an approval, a commencement and a completed building. Say what is known and identify what remains uncertain. If a buyer asks whether value will fall, the honest answer is that the market will decide, and that a valuer will form a view on the approved plans. Provide the decision notice and drawings on request, and keep the same account across viewings, emails and solicitor enquiries.

Panic is contagious, but so is composure. A seller who can explain the consent calmly, and who has the paperwork to support the explanation, is often treated as a reliable source. That reliability has a value of its own in a 2026 market where buyers are already cautious.

When price or timing should change

There are circumstances in which an adjustment is the honest response. A permanent loss of outlook from a main reception room, a materially overlooked garden, or a new access road close to a boundary may alter the pool of buyers and the level at which they will bid. A lender's valuer may also take a different view of security. In those cases, pricing on the old assumption and hoping for the best tends to waste time and weaken the seller's position.

Timing can be adjusted instead. If construction is about to begin and will be disruptive for twelve months, some sellers choose to market before works start or to wait until the dust has settled, depending on their circumstances. If a consent is close to its commencement deadline, a buyer may reasonably ask what happens if it lapses. These are commercial judgements, not moral ones.

The crane next door is not, by itself, a reason to reduce a price. It is a reason to establish the facts, disclose them clearly, and price the home against the street as it will be, not as it was. Sellers who take that approach give buyers less room for speculation and themselves more room to negotiate.