Overlooking and Loss of Privacy

Is overlooking a material consideration?

Yes, consistently. Many local planning authorities apply guideline separation distances between facing habitable-room windows, often around 21 metres, although the exact standard varies by authority and is not a national requirement. New windows, raised decking, balconies, and roof terraces that look directly into neighbouring gardens or windows are the classic triggers.

What matters isn’t just distance but the type of room affected: overlooking into a habitable room (a bedroom, living room, kitchen) or a private garden is taken far more seriously than overlooking into a bathroom, stairwell, or an already-public area.

Planning authorities are generally concerned with whether a proposal would create a materially worse privacy impact than currently exists. It’s also worth distinguishing two related but different concerns: loss of privacy can be a material planning consideration, while loss of a private view generally is not.

What strengthens this objection

• Naming the specific window, room, or garden area that would be overlooked
• Noting whether the affected space is currently private (no existing overlooking from that direction)
• Pointing to your council’s own separation-distance guidance, if you can find it in their local plan or design guide
• Distinguishing new overlooking from an angle change to existing overlooking — a genuinely new sightline is a stronger point than a marginal change to one that already exists

Where it tends to fail

The strongest objections explain precisely which rooms, windows or garden areas would be affected, rather than simply stating that overlooking would occur. Mitigation also matters: if the applicant has proposed obscure glazing, a screen, or a boundary treatment that addresses the overlooking, an objection that ignores the mitigation and repeats the original concern is easy for a case officer to discount.