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House Extension Lucan

Ongoing house extension by OSHolding team in Dublin

House Extension Lucan

If your home in Lucan 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.

Lucan grew fast, and the estates from the late 1970s to the 2000s make up most of the extension work here. Garden sizes vary considerably between them, so the first conversation is about the site rather than the design.

House Extensions in Lucan

Lucan grew fast, and the estates built from the late 1970s through to the 2000s make up most of the extension work we do here. Garden sizes vary considerably between them, which is why the first conversation is about the site rather than the design.

Start With the Garden, Not the Drawing

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

On the older Lucan estates with deeper gardens, the floor area limit is usually what you hit first. On the tighter 1990s and 2000s developments, the open space condition frequently bites earlier. Two houses a few streets apart can have genuinely different scope.

Any extension built by a previous owner counts towards the allowance, which regularly surprises people who bought an already-extended house.

We measure the site at survey and tell you which route you are on before any design work happens.

Trussed Roofs and Two-Storey Extensions

If you are considering going up as well as out, the roof structure matters. Houses built in Lucan from the 1980s onwards almost all have prefabricated trussed roofs, which affects how a two-storey extension ties into the existing house and what happens to the roof above it.

It is also worth knowing if you are weighing an extension against an attic conversion, which for some Lucan houses delivers the extra bedroom more cheaply than building outwards.

Planning Permission in Lucan

Lucan is in the South Dublin County Council area, and that is who we deal with on your behalf.

Going beyond the exemption is routine and plenty of our Lucan extensions are permitted developments. The expensive mistake is designing first and checking afterwards. Building regulations apply either way, and the compliance paperwork matters at resale.

Kitchen Extensions in Lucan

Most Lucan extensions end up as an open-plan kitchen and dining space, which means taking out part of the original rear wall. That wall is structural, so it needs a steel beam sized by an engineer, and the existing foundations need checking before the design is fixed around them.

Routine work, but it belongs in the quotation from the outset rather than appearing partway through.

What You Get From Us

  • A site measurement that establishes real scope before any design
  • An honest comparison with an attic conversion where that would serve you better
  • 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 Lucan FAQs

A ground-floor rear extension can often be exempted development subject to conditions. On the older Lucan estates with deeper gardens you usually hit the floor area limit first. On tighter 1990s and 2000s developments, the private open space requirement frequently bites earlier. Two houses a few streets apart can have very different scope, so we measure rather than assume.

Sometimes, and we will say so. If what you need is one more bedroom, converting the attic is often cheaper than building outwards, particularly where the garden is tight. If you need living space rather than a bedroom, an extension is usually the answer. We look at both at survey.

Lucan 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.

Usually yes, and most Lucan extensions end up that way. The original rear wall is structural, so it needs a steel beam sized by an engineer, and the existing foundations need checking before the design is fixed. We price that from the outset.

Book a Free Extension Survey in Lucan

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 Lucan and west Dublin, including Adamstown, Palmerstown, Clondalkin, Leixlip and Celbridge.

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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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