Do I Need Planning Permission for a Garage Conversion?

Converting a garage into a habitable room is one of the most cost effective ways to add living space and in most cases does not need planning permission. The key factor is whether the exterior changes significantly.

• Work is internal only, no significant exterior changes
• Not extending the building footprint
• Property is a house not a flat
• Use remains part of the main dwelling
• PD rights not removed

• Exterior significantly altered
• Converted into a separate dwelling or flat
• Property is listed
• In conservation area with changes visible from highway
• Planning condition requires garage retention for parking

Many newer homes have a condition requiring the garage for parking. Check original planning permission on your council's portal.

Almost always required for thermal insulation, damp proofing, ventilation, structural work, fire safety and electrics.