How much does a general builder charge for an extension in Ireland?

As of 2024, general builders in Ireland typically charge between €1,500 and €2,500 per square metre for a standard single-storey extension. Prices vary depending on location (Dublin tends to be higher), site access, and the quality of the finish.

Do I need planning permission for a home extension?

In Ireland, you can generally build a rear extension of up to 40 square metres without planning permission, provided it meets specific criteria regarding height and remaining garden space (exempted development). A knowledgeable local builder can advise you, but always consult an architect or engineer to be certain.

What is the role of a general builder?

A general builder acts as the main contractor or project manager. They oversee the entire site, ensure compliance with Building Regulations (Parts A-M), source materials, and coordinate specialist trades like plumbers, electricians, and plasterers.

Why is it better to hire a local builder?

Local builders have established networks with nearby suppliers, reducing material delivery delays. They also have an understanding of local ground conditions, planning authorities, and have a reputation within the community that they want to protect.

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Local General Builders Ireland

Local general builders in Ireland manage the entire construction process for residential projects. BuildTrade.ie helps you connect with top-rated local general builders in your specific county to ensure your renovation or extension is completed to the highest standard.

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The Role of a General Builder

A general builder acts as the main contractor for your project. Whether you are building a new house, adding a rear extension, or undertaking a deep retrofit, they take full responsibility for coordinating and executing the construction.

Project Management: Organizing daily site operations and timelines.
Trades Coordination: Sourcing trusted plumbers, electricians, and plasterers.
Compliance: Ensuring all work meets Irish Building Regulations.
Material Sourcing: Using local supplier networks to get the best prices and delivery times.

Costs and Planning Permission

Understanding the rough costs and legal requirements is crucial before contacting a builder.

Average Costs (2024)

For standard extensions, expect quotes ranging from €1,500 to €2,500 per square metre. This usually excludes high-end finishes like bespoke kitchens, luxury flooring, or advanced smart home systems.

Planning Exemptions

You can build a rear extension up to 40 square metres without planning permission in Ireland, provided you meet certain conditions (e.g., retaining 25sqm of garden space). Always verify with an architect.

Why Hire Locally?

Selecting a builder from your local area provides significant advantages. Local professionals have established relationships with nearby building suppliers, reducing material wait times. They understand the specific planning nuances of your county council and have a local reputation they need to uphold. On BuildTrade, every local builder is thoroughly vetted for insurance and official company registration.

Trusted by Homeowners Nationwide

"We found a brilliant local builder in Galway through BuildTrade. Because he was local, his plumbers and electricians were on site exactly when needed. The extension was finished ahead of schedule."

Niamh T.

Homeowner in Co. Galway

"Having the peace of mind that the builder's insurance was already verified made the hiring process so much easier. The quality of the blockwork and roofing on our new build is outstanding."

Paul & Claire M.

Homeowners in Co. Kildare