Most Portsmouth roofing work needs no planning permission — like-for-like replacement and repairs are permitted development. But conservation areas (Old Portsmouth, parts of Southsea, Portchester castle village) and listed buildings require consent, even for repairs. Check before starting to avoid enforcement action.
Most roofing repair and replacement work in Portsmouth does not require planning permission — it falls within permitted development rights. However, Portsmouth has several conservation areas and a significant stock of listed buildings where the rules are different, and the consequences of getting it wrong are serious. This guide sets out when you need planning permission and when you do not.
When You Do NOT Need Planning Permission
- Like-for-like tile or slate replacement on a residential property outside a conservation area
- Flat roof replacement using the same or equivalent system
- Velux window installation within permitted development limits (maximum 150mm projection, not higher than highest point of existing roof)
- Roof repairs of any extent — repairs do not require permission
- Chimney repairs and replacement of chimney pots
- Guttering, fascia and soffit replacement
The Planning (Listed Buildings and Conservation Areas) Act 1990 makes unauthorised works to a listed building a criminal offence.
Source: Planning (Listed Buildings and Conservation Areas) Act 1990
When You Likely DO Need Planning Permission
- Dormer windows in any location on a principal elevation
- Dormer windows on any elevation if the property is in a conservation area or is listed
- Any material change on a listed building (even repairs)
- Any change to the external appearance of a property in a conservation area
- Roof terraces or roof extensions
- Changes to the roof pitch or height
Conservation Area Roofing in Portsmouth
We advise on planning requirements before quoting on all conservation area and listed building work. Free survey — call 0239 307 1334.
Call 0239 307 1334Portsmouth Conservation Areas — What This Means for Roofing
Portsmouth City Council designates several conservation areas across the city. Old Portsmouth and Portsea, parts of Southsea, and areas around significant historic buildings all have conservation area status. In conservation areas, permitted development rights are reduced — this means some works that would not require planning permission elsewhere need consent here.
For roofing, the key conservation area restriction is on material change. A property in a Portsmouth conservation area may not be able to replace original Welsh slate with concrete tiles, or switch from clay to modern concrete without planning consent. The planning officer for the relevant area will have specific guidance on what is and is not acceptable. We liaise with planning officers before starting work on conservation area properties and know the standard material requirements in Portsmouth's designated areas.
Listed Buildings in Portsmouth
Listed building consent (separate from planning permission) is required for almost any works to a listed building, including roofing repairs. This includes works that would be permitted development elsewhere. The consent process requires a heritage statement and prior approval. Carrying out unauthorised works on a listed building is a criminal offence regardless of whether the works were otherwise reasonable. We advise on the listed building consent process and can help prepare the required documentation for routine roofing works.
Practical Advice for Portsmouth Homeowners
If you are unsure whether planning permission is required, the safest approach is to submit a lawful development certificate application before starting work — this gives you written confirmation that the work is permitted development. The fee is modest and the certainty it provides is valuable. We can advise on whether a lawful development certificate is likely to be needed based on the specific property and proposed work.
Last reviewed: 20 July 2026 by Portsmouth Roofing Experts.