Do I Need Planning Permission for a New Roof in 2026? (UK)

Quick 2026 decision tree

1. Same shape, same materials, same ridge height? — Permitted Development. No application.
2. Conservation area — PD still applies for like-for-like but the material spec must match (no concrete tile on a slate street).
3. Article 4 direction — PD rights are removed. Lodge a Householder application even for like-for-like.
4. Listed Building (any grade) — Always Listed Building Consent, even for like-for-like.
5. Change to roof shape (hip-to-gable, new dormer, raised ridge) — Householder Planning application required.
6. Roof terrace or balcony added — Full planning required everywhere.

What counts as "like-for-like" in 2026?

The 2025 General Permitted Development Order tightened the definition. To count as like-for-like in 2026 you need:

• The same primary material (tile-to-tile or slate-to-slate; tile-to-slate is a material change)
• The same tile or slate profile and colour family in conservation areas (a darker grey can be accepted; a terracotta on a slate row will not)
• The ridge height within +/- 150mm of the original (insulation thickness counts; many warm-roof upgrades push above this)
• The same roof shape — no new gables, no hip-to-gable conversions, no new dormers
• The same eaves and verge detail (a continuous fascia is acceptable; a new overhang past 300mm is not)

The Article 4 trap

Article 4 directions are made by local authorities to remove Permitted Development rights in specific streets or districts. They are common in historic city centres (Bath, York, Edinburgh, central London) and increasingly in 1930s suburbs near conservation areas. An Article 4 direction means you must apply for planning permission even for a like-for-like roof replacement. Check your local planning portal’s Article 4 map before you commit to a roofer’s start date.

Conservation areas in 2026

In a conservation area, your Permitted Development rights are not removed, but they are restricted. Specifically: the roofing material must be visually consistent with surrounding properties, and modern interventions like solar PV in a prominent street-facing slope are routinely refused. Some boroughs (Camden, Westminster, Edinburgh, Bath & NES) operate "heritage panel" pre-application reviews that are worth using.

Solar PV on a roof replacement — 2026 rules

The 2026 Energy Performance regulations encourage solar integration during re-roofing, but planning rules have not relaxed in conservation areas. Outside conservation areas, in-roof solar PV under 200 mm of roof projection is PD. In a conservation area, street-facing slopes still require a Householder application even for in-roof systems.

Cost and timing of a planning application

• Householder Planning application: £258 fee + drawings (£800–£1,800) + 8 weeks decision
• Listed Building Consent: no fee + heritage statement (£1,200–£3,500) + 8 weeks decision
• Lawful Development Certificate (LDC): £129 fee + 8 weeks — recommended even for PD work to give buyer’s solicitors a clean answer at resale

FAQs

Related guides

• Hip roof cost guide 2026 UK
• How to plan a roof conversion 2026
• More planning guides