The rules on solar panels planning permission Ireland follows were overhauled in October 2022. Most house roofs no longer need permission at all, and businesses, farms, schools and apartments got much wider exemptions. But each exemption comes with conditions, and missing one can mean your panels aren’t exempt. This guide walks through the Planning and Development Act 2000 (Exempted Development) (No. 3) Regulations 2022, S.I. No. 493 of 2022 class by class. Checked 26 October 2026. It’s general information, not legal advice.
What changed in 2022
The new exemptions and the Solar Safeguarding Zone Regulations (S.I. 492/2022) took effect on 5 October 2022 (gov.ie). Before that, house roofs were limited to 12m² or 50% of the roof, whichever was less. That limit has been removed (Fieldfisher; SEAI).
Solar panels planning permission Ireland: houses
Houses (not apartments) fall under Class 2(c). gov.ie states: “There is no rooftop limit on houses, regardless of whether the house is located within or outside of an SSZ.” The conditions in S.I. 493/2022 include:
- Roof-mounted: no more than 15cm above a pitched roof, or 50cm above a flat roof, and at least 50cm from the edge of the roof.
- Free-standing (ground-mounted): not forward of the front wall of the house, total aperture area no more than 25m², no higher than 2.5m, and at least 25m² of private open space left to the rear or side.
- Wall-mounted: not exempt for houses.
- Glint and glare: an installation causing hazardous glint or glare isn’t exempt and must be removed or covered until a mitigation plan is agreed.
- Architectural Conservation Areas: free-standing installations are exempt only if they wouldn’t materially affect the area’s character.
General restrictions on exempted development also apply to protected structures and ACAs (gov.ie). SEAI advises that heritage homes, listed buildings and homes in Special Areas of Conservation contact their local authority before going ahead (SEAI).
Businesses, farms, apartments and community buildings
| Building type | Class | Roof-mounted | Wall-mounted | Free-standing |
|---|---|---|---|---|
| Industrial | 56(d) | Up to 2m above flat roof / 1.2m above other roof; 2m from flat roof edge, 50cm from other roof edge | Up to 75m², 15cm projection | Up to 75m², 2.5m high, not forward of front wall |
| Business premises | 56(e) | Up to 1.2m above flat roof / 15cm above other roof | Not exempt | Up to 75m², 2.5m high |
| Light industrial | 56(e) | Up to 2m above flat roof / 50cm above other roof | Not exempt | Up to 75m², 2.5m high |
| Apartment buildings | 60 | Up to 1.2m above flat roof / 15cm above other roof | Not exempt | Not exempt |
| Schools, health, community, worship, libraries | 61 | Up to 1.2m above flat roof / 15cm above other roof | Not exempt | Up to 75m², 2.5m high |
| Agricultural | Part 3, 18(c) | Up to 1.2m above flat roof / 15cm above other roof | Up to 75m², 15cm projection | Up to 75m², 2.5m high, not forward of nearest farm building to the road |
For homes, our solar panels for homes page explains system options once you know the planning position.
Common conditions for these classes:
- The electricity or heat must be primarily used within the site (the regulations define this as more than 50%).
- Panels can’t rise above the highest part of a non-flat roof (excluding chimneys) where that limit applies.
- Ancillary equipment on roofs is limited to flat roofs, up to 1.6m high and 2m from the edge.
- No advertising or signage on the installation.
- ACA and glint-and-glare restrictions apply.
For farms, see our solar panels for farms guide; for ground arrays at any property, see ground mounted solar panels.
Solar Safeguarding Zones
Solar Safeguarding Zones (SSZs) are areas around airports, aerodromes and helipads where glint or glare could affect aviation. gov.ie says there are 43, viewable on the MyPlan website (gov.ie). Inside an SSZ, every class except houses is limited to 300m² of panels per roof, and you must notify the planning authority in writing within 4 weeks of starting work, with details of location and scale (S.I. 493/2022). Larger proposals in an SSZ need planning permission.
When exemptions go wrong: a real example
In 2026, Cork County Council considered 12 panels (24m²) on the front roof of a pharmacy in Macroom under Class 56(e) and declared them not exempted development (Cork County Council, ref. D243/26). The reasons: the drawings lacked detail to confirm edge and roof-plane distances, no glint and glare screening report was submitted, and the building is in an Architectural Conservation Area where the conservation officer considered the panels would materially affect its character. It’s a useful reminder that being “under the limits” isn’t enough if other restrictions apply.
How to check before you install
- Identify your building’s class (house, business, farm, apartment, community).
- Check whether the property is a protected structure or in an ACA (your council’s development plan lists both).
- For non-house buildings, check MyPlan for Solar Safeguarding Zones.
- Ask your installer to confirm in writing how the design meets each condition, with dimensions.
- If in doubt, apply to the council for a Section 5 declaration on whether the work is exempt, before you start.
- If it isn’t exempt, apply for planning permission.
Planning permission is separate from the grant. SEAI’s business scheme guide says it’s the applicant’s sole responsibility to determine whether permission is needed (SEAI). See our solar grants guide for funding.
FAQs
Do I need planning permission for solar panels on my house in Ireland?
Usually not for roof panels, since October 2022, provided you meet the conditions in S.I. 493/2022. Protected structures and some conservation areas need to check with the council.
Can I put solar panels on the front of my house?
Yes, on the roof, if the conditions are met; there’s no rule against front-facing roof slopes for houses. Free-standing panels can’t be forward of the front wall, and wall-mounted panels aren’t exempt for houses.
How many solar panels can a business install without planning?
There’s no overall roof limit outside Solar Safeguarding Zones, subject to the conditions. Inside an SSZ, roof panels are limited to 300m² per roof, with council notification within 4 weeks.
Do apartments need planning permission for solar?
Roof-mounted panels on apartment buildings can be exempt under Class 60. Wall-mounted and free-standing panels aren’t exempt for apartments.
What is a Section 5 declaration?
A formal ruling from your local council on whether specific works are exempted development. It’s worth getting if your case is borderline.
Get your solar quote today
Get your solar quote today. We’ll connect you with SEAI-registered installers who can design within the planning rules for your building and quote in writing. Call 089 450 4544 if you’d like to talk first.
