RSM Construction Dublin
    Home Extension in Blackrock — luxury renovation by Dublin's premium construction company
    South County Dublin · Ireland

    Home Extension in Blackrock

    Designing and building light-filled extensions throughout Blackrock

    Home Extension · Blackrock

    Home Extension Specialists Working Across Blackrock

    Extensions are how most Blackrock homeowners unlock the kitchen-living-dining space they actually want, particularly in granite-fronted Victorians, red-brick terraces and seafront contemporary homes where the original rear layout no longer works for family life. We handle every stage in-house — structural design, foundations, walls, roof, large-format glazing, electrics, plumbing, finishes — and coordinate any planning application with the council. Our Blackrock extensions are designed to flood the ground floor with light, integrate cleanly with the existing home and meet current Building Regulations on insulation and air-tightness.

    What's Included

    Our Home Extension Service in Blackrock

    Architectural design coordination and planning advice
    Foundations, structural steel and full envelope construction
    Roofing, glazing, doors and large-format sliders or roof lights
    Internal fit-out, plumbing, electrics and final finishes

    Home Extension for Homes in Blackrock

    A home extension involves foundations, walls and roof, connecting the new structure to the existing house, opening up internal walls, extending services and finishing the new space so it reads as part of the original home. RSM manages groundworks, structural work, building envelope, first and second fix, and finishes as one design-and-build project.

    Blackrock extensions often aim to add a bright family space to the rear of period or mid-century homes. Glazing, roof lights and careful detailing help the new space link naturally to the existing house.

    For a full overview of the service, see our home extension service across Dublin, or read more about our renovation and construction work in Blackrock.

    Planning a Home Extension Project in Blackrock

    A good extension feels like it was always part of the house, which depends on how the new and existing structures meet.

    • Insulation: Walls, floor and roof need to meet current thermal standards and avoid cold bridges at the junction.
    • Finish continuity: Floor levels, ceiling lines and joinery details help the extension read as one home.
    • Layout: The extension should improve how the whole ground floor works, not just add floor area.
    • Connection to the existing house: Openings into the original walls usually need steel or engineered beams and careful sequencing.

    Where an extension adjoins a neighbour, consider boundary walls, light to neighbouring windows and any party-wall arrangements.

    Related Services in Blackrock

    Projects often combine more than one type of work. Homeowners in Blackrock also ask us about kitchen renovation in Blackrock, attic conversion in Blackrock and builders in Blackrock.

    Why Choose RSM

    Why Homeowners in Blackrock Choose Us for Home Extension

    Experienced with Blackrock's typical site conditions and planning
    Clean site management that respects neighbours and gardens
    Detailed, transparent pricing with no hidden costs
    FAQs

    Home Extension in Blackrock — Frequently Asked Questions

    The questions homeowners in Blackrock most often ask us about home extension.

    Some extensions in Blackrock may be exempt from planning permission and others will need it. Exemptions generally depend on the size, height, position and the amount of garden remaining, and they do not apply in the same way to protected structures or homes in some designated areas. Because the rules depend on the specific property, we recommend confirming this with your architect or the local authority before design is finalised.

    A single-storey home extension usually takes a few months on site, from groundworks to finishing, while larger or two-storey extensions take longer. Weather, structural complexity and how much of the existing house is being altered all affect the programme. For Blackrock projects we agree a phased programme after drawings and engineering are complete, so each stage is planned rather than improvised.

    Yes, two-storey extensions can be built on many Blackrock homes, subject to planning, site space and structural design. A two-storey extension usually needs planning permission and careful attention to neighbouring light and privacy. Structurally, the new walls, floor and roof must tie into the existing house properly. We work from engineered drawings and coordinate each stage of the build with your design team.

    We work with architects and engineers to deliver extension design in Blackrock, either alongside your own design team or by bringing in suitable professionals. Good design considers how the extension connects to the existing rooms, natural light, structure, insulation and planning constraints. Having the builder involved early helps make sure the design is practical to construct and the details are resolved before work begins.
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    Also Serving Nearby Areas

    We also deliver home extension in the neighbourhoods surrounding Blackrock.

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