Do You Need Planning Permission for a Log Cabin?

The short answer is: it depends. In Ireland, certain structures can be classified as exempt developments, meaning they do not require planning permission. However, your log cabin must meet specific conditions to qualify for this exemption.

Key Conditions for Exemption

Size Restrictions

If your log cabin is under 25 square meters (approx. 269 sq ft) and is located within the boundary of your existing property, it may be exempt from planning permission. However, there must still be at least 25 square meters of garden space left after the cabin is built.

Purpose of the Cabin

If the log cabin is being used as an extension of your home—such as a home office, studio, gym, or playroom—it may be exempt. If it is used as a permanent residence or contains a bedroom and bathroom, planning permission will almost certainly be required.

Height Restrictions

The structure should not exceed 3.9 meters in height for a pitched roof or 2.5 meters for a flat roof. Anything taller will likely require planning permission.

Location on the Property

The log cabin should not block your neighbors' light or access, and it must be positioned at least 2 meters from a boundary wall.

When Do You Need Planning Permission for a Log Cabin?

If your log cabin does not meet the conditions above, you will need to apply for planning permission. Below are common scenarios where permission is required:

• Using the Cabin as a Living Space: If the log cabin is intended as a full-time residence, it is treated as a new dwelling, meaning it must meet building regulations and planning laws. Even for granny flats or rental units, planning permission is required.
• Larger Log Cabins: If the cabin exceeds 25 square meters or reduces garden space below 25 square meters, permission is needed.
• Building in a Conservation Area: Homes in protected or heritage zones or areas of outstanding natural beauty will require permission.
• Cabins for Commercial Use: If used for business, rentals, salons, therapy rooms, or similar purposes, planning permission is necessary.

Applying for Planning Permission: What to Expect

Pre-Planning Consultation

Speak with your local planning authority before submitting an application. This helps identify potential issues early.

Submitting an Application

You'll need architectural drawings, site plans, and documents outlining the cabin's size, use, and impact. A fee applies (typically €34 - €65).

Approval Process

The council reviews your application based on size, neighbor impact, and zoning laws. The process usually takes 8-12 weeks, and approval is not guaranteed.

Compliance with Building Regulations

Even with planning approval, the cabin must comply with Building Regulations regarding safety, insulation, ventilation, and structure.

Recent Changes in Irish Planning Laws

The Irish government is reviewing laws to simplify building granny flats or extra living spaces without needing planning permission. These changes may benefit log cabins intended for family use in urban areas. However, current regulations remain in force until new laws are passed.

How BAYT Can Help

• Site Assessment: Determine if your log cabin qualifies for exemption or needs planning permission.
• Planning Applications: We prepare architectural drawings and supporting documents.
• Regulation Compliance: Ensure your cabin meets all safety and energy standards.
• Construction Management: We deliver high-quality log cabins that fit perfectly within your property.