Double Storey Extension Cost in Ireland

by | Feb 26, 2024

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Are you looking for a way to add more space and value to your home in Ireland? Do you want to know how much it would cost to build a double storey extension? If yes, then you have come to the right place.

This blog post will explain everything you need to know about double storey extension cost in Ireland, including the factors that affect the price, the benefits of adding a second storey, and the steps involved in the process and also share some tips on how to save money when planning and building your double storey extension.

What is a Double Storey Extension?

A double storey extension is a type of home improvement project that involves adding a second floor to an existing single storey building, or extending an existing two storey building. A double storey extension can provide you with more living space, such as bedrooms, bathrooms, offices, or entertainment areas, without sacrificing your garden or outdoor space. A double storey extension can also improve the appearance and functionality of your home, as well as increase its market value.

How Much Does a Double Storey Extension Cost in Ireland?

The cost of a double storey extension in Ireland depends on various factors, such as the size, design, location, and quality of the extension, as well as the materials, labour, and fees involved. According to some estimates, the average cost of a double storey extension in Ireland ranges from €1,500 to €2,500 per square metre, excluding VAT and professional fees.

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This means that a typical double storey extension of 60 square metres could cost between €90,000 and €150,000, plus VAT and fees. However, this is only a rough guide, and the actual cost of your double storey extension may vary depending on your specific requirements and circumstances.

What are the Benefits of a Double Storey Extension?

There are many benefits of adding a double storey extension to your home, such as:

More space

A double storey extension can significantly increase the floor area of your home, giving you more room for your family, guests, hobbies, or work. You can also create more storage space, natural light, and ventilation by adding windows, skylights, or rooflights to your extension.

More value

A double storey extension can boost the value of your home by up to 20%, according to some experts. This means that you can potentially recoup the cost of your extension if you decide to sell your home in the future. A double storey extension can also make your home more attractive and appealing to potential buyers, as it shows that you have invested in your property and maintained it well.

More flexibility

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A double storey extension can give you more flexibility and versatility in designing and using your home. You can choose the layout, style, and features of your extension to suit your needs and preferences. You can also change the function of your rooms as your lifestyle changes, such as converting a bedroom into an office, or a playroom into a gym.

More efficiency

A double storey extension can improve the energy efficiency and thermal performance of your home, as it can reduce the heat loss and gain through the roof and walls. You can also install insulation, double glazing, solar panels, or other eco-friendly measures to further enhance the sustainability and comfort of your home.

What are the Steps Involved in Building a Double Storey Extension?

Building a double storey extension is a complex and lengthy process that requires careful planning and preparation. Here are some of the main steps involved:

Consult a professional

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Before you start your project, you should consult a qualified and experienced architect, engineer, builder, or project manager who can advise you on the feasibility, design, cost, and regulations of your double storey extension. You should also get at least three quotes from different contractors to compare their prices and services.

Get planning permission

Depending on the size, location, and impact of your double storey extension, you may need to obtain planning permission from your local authority. You should check the planning guidelines and requirements for your area and submit your application with the relevant drawings, documents, and fees. You should also consult your neighbours and inform them of your plans, as they may have the right to object or comment on your proposal.

Get building regulations approval

Apart from planning permission, you also need to comply with the building regulations, which are the minimum standards for the health, safety, and performance of your double storey extension. You need to get building regulations approval from your local authority or a private approved inspector, who will inspect your work at various stages and issue a completion certificate at the end.

Prepare the site

Before you start the construction, you need to prepare the site for your double storey extension. This may involve demolishing or removing any existing structures, clearing the ground, digging the foundations, laying the drainage, and installing the services, such as water, electricity, and gas. You should also ensure that you have adequate access, storage, and security for your site, as well as protection for your existing property and neighbours.

Build the structure

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Once the site is ready, you can start building the structure of your double storey extension. This may include erecting the walls, floors, roofs, stairs, and windows of your extension, as well as installing the insulation, ventilation, and fire safety measures. You should also ensure that your extension is weatherproof, secure, and durable.

Finish the interior

After the structure is complete, you can finish the interior of your double storey extension. This may involve plastering, painting, flooring, tiling, and decorating your rooms, as well as fitting the fixtures, fittings, and appliances, such as doors, lights, sockets, switches, radiators, sinks, toilets, showers, and cabinets.

How to Save Money When Building a Double Storey Extension?

Building a double storey extension can be a costly and challenging project, but there are some ways to save money and avoid common pitfalls, such as:

Set a realistic budget and contingency fund

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You should set a realistic budget for your double storey extension, based on your requirements, preferences, and market rates. You should also include a contingency fund of at least 10% of your budget, to cover any unexpected costs or changes that may arise during the project. You should also keep track of your spending and receipts, and communicate with your contractor regularly to avoid any misunderstandings or disputes.

Choose a reputable and reliable contractor

You should choose a reputable and reliable contractor who has the skills, experience, and credentials to deliver your double storey extension. You should check their references, reviews, and portfolio, and ask for a written contract that outlines the scope, schedule, and cost of the project, as well as the terms and conditions, warranties, and guarantees.

Plan ahead and be flexible

You should plan ahead and be flexible when building your double storey extension. You should research and compare your options, and make informed and realistic decisions. You should also anticipate and prepare for any delays, disruptions, or complications that may occur, such as bad weather, supply shortages, or design changes.

Conclusion

To wrap up, building a double-storey extension in Ireland is a significant investment that can greatly enhance your living space and property value. Understanding the costs involved, from planning to completion, is crucial for a successful project. Coastal Homes is here to guide you through every step, ensuring your extension meets your needs while adhering to your budget.

With our expertise, you can achieve the additional space you desire without the stress. Contact Coastal Homes today to start planning your double-storey extension and take the first step towards transforming your home.

Frequently Asked Questions

What is the average cost of a double-storey extension in Ireland?

The average cost ranges from €1,500 to €2,500 per square metre, depending on various factors like design and materials.

Does the cost per square metre include VAT for double-storey extensions?

Typically, costs are quoted excluding VAT, so it’s important to factor this additional cost into your budget.

What factors influence the cost of a double-storey extension?

Key factors include the size of the extension, the quality of materials, design complexity, and the specific location within Ireland.

Can I save money on my double-storey extension by doing some work myself?

While DIY can save some costs, technical and structural work should be handled by professionals to ensure safety and compliance with regulations.

How does the choice of materials affect the overall cost of a double-storey extension?

Material choice significantly impacts cost, with high-end materials like natural stone or bespoke features increasing the overall expense.

Is planning permission required for a double-storey extension in Ireland?

Planning permission is often required for double-storey extensions, especially if the extension alters the house’s footprint or height significantly.

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