Rear Extension Terraced House Cost in Ireland: Complete Guide

Matt Keane
January 13, 2023

Are you considering adding more living space to your terraced house? If so, you're probably wondering about the rear extension terraced house cost in Ireland. This comprehensive blog will discuss everything you need to know, from planning to costs and porch styles. Let BuildTech help you make the right decision for your home.

What is a rear extension?

A rear extension is a type of home improvement that involves extending the back of your house to create more living space. A rear extension can be single-storey or two-storey, depending on your needs and preferences. A rear extension can be used for various purposes, such as adding a kitchen, dining room, living room, bedroom, bathroom, or office.

Why Build a Rear Extension for Your Terraced House?

A rear extension can significantly increase your living space and add value to your property. It provides extra room for a growing family or allows you to create a more spacious, open-plan living area. Additionally, a well-designed extension can enhance your home's appearance and improve your overall quality of life.

How Much Does It Cost to Build a Rear Extension for Your Terraced House in Ireland?

Various factors come into play when estimating the rear extension terraced house cost. These include the size and complexity of the project, materials, and finishes. The average cost per square metre in Ireland ranges from €2,500 to €,3000 as illustrated in the table below:

Type of Extension  Finish of Extension  Average Cost per sqm (€)

Single Storey          Standard                  1,900 - 2,300

Single Storey          High-spec                2,000 - 2,500

Two Storey             Standard                  2,100 - 2,600

Two Storey             High-spec                2,200 - 2,800

Keep in mind that if you need to renovate your existing house as part of the project, the cost may increase by €2,500 to €,3000 per sqm.

How to Plan and Execute Your Rear Extension Project Successfully?

To ensure a successful rear extension project, follow these steps:

Set a realistic budget

Determine your overall rear extension terraced house cost, including materials, labour, and additional expenses.

Hire a professional

Consult an architect or builder to create a detailed plan that meets your needs and complies with local regulations.

Obtain necessary permits

Ensure you have the required planning permissions and building regulations approval before starting construction.

Choose the right materials

Select materials that match your home's aesthetic and provide long-lasting durability.

Monitor progress

Stay involved in the project to ensure it stays on track and meets your expectations.

Different Porch Styles for Your Rear Extension

When considering a rear extension, you have various porch styles. Some popular options include:

Lean-to porch

A simple porch with a sloping roof that leans against the wall of the house. A lean-to porch is easy to build and can suit any house style.

Gable porch

A porch with a triangular roof forms a gable at the front of the house. A gable porch can create a more dramatic and elegant look for your rear extension, allowing more light and air into the space.


A porch extending along or around the entire house. A veranda can provide ample and versatile outdoor space for entertaining, relaxing, or enjoying the views. A veranda can also enhance the curb appeal and character of your house.


A porch with a roof supported by columns or pillars at the house's entrance. A portico can create a grand and formal impression for your rear extension and protect your guests from the weather as they enter your home.

Bungalow porch

A low and wide porch, often with a railing or fence around it. A bungalow porch can create a cosy and inviting space for your rear extension and can also complement the style of your house, if it is a bungalow or a cottage.

Farmers porch

A large and spacious porch, often with a roof extending over it. A farmers porch can provide a comfortable and practical space for your rear extension and add a rustic and charming touch to your house.

Screened-in porch

A porch enclosed by screens or mesh to keep out insects and debris. A screened-in porch can allow you to enjoy the outdoors without being bothered by bugs or weather conditions. A screened-in porch can also provide more privacy and security for your rear extension.

Detached porch

A porch is separate from the main house, often connected by a walkway or a bridge. A detached porch can create a more secluded and intimate space for your rear extension, offering more flexibility and creativity in design and layout.

Ready to build your dream rear extension?

BuildTech is here to help you make your dream rear extension a reality. Our team of experts will guide you through the entire process, ensuring a smooth and successful project. Don't wait any longer.

Contact us today!

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*FYI, parts of this blog post were drafted by artificial technlogy. But rest assured, it's been thoroughly researched, edited, reviewed and me & my team.

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