Overview of the Solar Planning Timeline in Ireland
Solar planning timelines in Ireland vary significantly depending on project size, the receiving authority, and whether the application requires an Environmental Impact Assessment. Here is a realistic guide to what you should expect.
Local Authority Applications (Standard Permission)
For solar farms that do not exceed EIA thresholds and are not designated as Strategic Infrastructure Development, a standard local authority planning application applies.
Pre-Application Stage: 4–12 weeks
Before submitting a formal application, most developers engage in pre-application consultation with the planning authority. This is not mandatory but is strongly recommended for solar farms. The consultation:
Pre-application meetings must be requested in writing. Some councils schedule them promptly; others have backlogs of 6–10 weeks. Budget 4–12 weeks for this stage.
Survey and Report Preparation: 8–24 weeks
The technical reports required for a solar planning application typically include:
The critical path is usually ecology — if bat surveys are required, these can only be conducted during specific seasons, potentially extending preparation by 6–12 months for projects that miss a survey window.
Application Validation: 1–3 weeks
After submission, the planning authority validates the application — checking that all required documents have been submitted in the correct format. A properly prepared application is typically validated within 1–2 weeks. Missing documents cause delays; in some cases the application is returned.
Planning Determination: 8 weeks (statutory)
The statutory determination period for a standard planning application in Ireland is 8 weeks from validation. In practice, this period is often extended by:
**Further Information (FI) requests**: If the planning authority requires additional information, they issue an FI request. The clock stops when an FI is issued and restarts when a response is received and acknowledged. Each FI request typically adds 4–8 weeks.
The most common FI triggers for solar applications are:
**Third-party observations**: Public notices must be published and neighbour notification given. Third-party observations can be submitted and must be considered. This does not extend the statutory period but can influence determination.
Total Typical Timeline (Standard Application)
| Stage | Duration |
|---|---|
| Pre-application | 4–12 weeks |
| Surveys and report preparation | 12–24 weeks |
| Application submission and validation | 1–3 weeks |
| Planning determination (no FI) | 8 weeks |
| **Total (best case)** | **25–47 weeks** |
| Further Information (if required) | +4–8 weeks per request |
Strategic Infrastructure Development (SID) Applications
Larger solar farms — and those designated as SID by An Bord Pleanála — follow a different process directly to ABP.
SID applications are more complex and expensive but provide national-level planning certainty without the risk of a local authority refusal followed by ABP appeal.
Tips for Reducing Timeline Risk
1. **Commission technical reports early** — especially ecology. Missing a bat survey season can add 12 months to your programme.
2. **Submit proactively** — include all commonly requested documents (glint and glare, LVIA, Landscape Plan) with the initial application, not in response to FI.
3. **Ensure document consistency** — inconsistencies between drawings, glint reports, and landscape plans are a common FI trigger. Use consultants who work together.
4. **Engage the planning authority early** — pre-application consultation is time well spent.
Contact [SolarPlan Ireland](/contact) to discuss your project programme and get a clear picture of what documentation you need and when.
See also: [PV Planning Drawings](/services/pv-planning-drawings) | [Glint & Glare Analysis](/services/glint-glare-analysis)
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