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House Extension Clondalkin

Ongoing house extension by OSHolding team in Dublin

House Extension Clondalkin

If your home in Clondalkin is running out of room, an extension adds the space where you actually need it, without the cost and upheaval of moving. A bigger kitchen, a dining space, a family room or a downstairs bedroom.

Clondalkin spans a wide range of housing and garden size varies with it. The 1960s and 1970s estates generally have real room to build; later developments were laid out more tightly, and there the space behind the house decides the extension.

House Extensions in Clondalkin

Clondalkin spans a wide range of housing, and garden size varies with it. The estates built through the 1960s and 1970s generally have deep gardens with real room to build. Later developments were laid out more tightly, and there the space behind the house is usually what decides the extension.

What the Site Will Allow

A ground-floor rear extension can often be built as exempted development in Ireland, subject to conditions. There is a limit on floor area, and separately a requirement that a minimum area of private open space remains behind the house.

On the older Clondalkin estates you will usually reach the floor area limit before the open space condition matters. On the newer, denser developments it is frequently the other way round. Anything a previous owner built counts towards the allowance either way.

We measure the actual site at survey rather than working from the house alone, and tell you which route you are on before design work starts.

Extending Former Local Authority Housing

A good proportion of Clondalkin housing was originally built by the local authority, and those houses extend well. They were built solidly, the layouts are straightforward, and the plots are usually generous.

What we check is the existing construction, because houses of that era vary. Wall build-up, foundation depth and the position of the original drainage all need establishing before a design is fixed rather than assumed from a standard detail.

Planning Permission in Clondalkin

Clondalkin is in the South Dublin County Council area, and we deal with them on your behalf where an application is needed.

Exceeding the exemption is routine and perfectly workable. What costs people money is designing first and checking afterwards. Building regulations apply whichever route you take, and the compliance paperwork matters when you sell.

Open-Plan Kitchens in Clondalkin

Most Clondalkin extensions become an open-plan kitchen and dining space, which means removing part of the original rear wall. That is structural: it needs a steel beam sized by an engineer, and the existing foundations checked before the design is fixed around them.

If the rear of the house is open anyway, it is also the sensible moment to deal with insulation. Our home insulation page sets out the options.

What You Get From Us

  • A site measurement establishing genuine scope before any design
  • Existing construction and drainage established, not assumed
  • Structural steel and foundations priced in from the start
  • Planning and building regulations handled with South Dublin County Council
  • A dedicated project manager, from a fully insured CIRI-registered contractor

See also our main house extensions page.

See Our Recent Work

We’ve completed a wide variety of renovation and extension projects across Dublin.

Visit our gallery to explore completed work and see the quality of our craftsmanship across house extensions, renovations, kitchens, bathrooms and other residential building projects.

House Extension Clondalkin FAQs

It depends which part of Clondalkin. On the 1960s and 1970s estates with deep gardens you will usually reach the floor area limit before the private open space condition matters. On newer, denser developments it is frequently the other way round. We measure the actual site rather than working from the house alone.

Yes, generally very well. They were built solidly, the layouts are straightforward and the plots are usually generous. What we check is the specific construction, because wall build-up, foundation depth and drainage position vary and need establishing rather than assuming.

Clondalkin is under South Dublin County Council. Within the exemption and its conditions, no. Beyond it an application is needed, which is routine and which we handle. The expensive mistake is designing first and checking afterwards.

If the rear of the house is open anyway, it is far cheaper to do it then than to come back to it. Houses of this era are usually well below current thermal standards, and doing both together avoids paying twice for the same disruption.

Book a Free Extension Survey in Clondalkin

The survey costs nothing and carries no obligation. We measure the site, establish whether your plan is exempted development or needs an application, locate the drainage, and tell you what it will realistically cost.

If an extension is not the best answer for what you need, we will say so and talk you through the alternatives.

We build extensions throughout Clondalkin and west Dublin, including Lucan, Palmerstown, Ballyfermot, Rathcoole and Newcastle.

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Commitments for Project

As a top building contractor, our team of expert tradesmen and managers is dedicated to ensuring the seamless completion of your project. Particularly, we will guide you through the process and ensure transparency to help you make informed decisions.

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