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

    Home Extension in Dalkey

    Adding space, light and value to Dalkey family homes

    Home Extension · Dalkey

    Home Extension Specialists Working Across Dalkey

    Extensions are how most Dalkey homeowners unlock the kitchen-living-dining space they actually want, particularly in Victorian terraces, Edwardian semis and seafront contemporary builds 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 Dalkey 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 Dalkey

    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 Dalkey

    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.

    Rear extensions in Dalkey often need to work around narrow plots, stone boundary walls and neighbouring period homes. The challenge is adding a bright, modern living space at the back while respecting the scale and materials of the original 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 Dalkey.

    Planning a Home Extension Project in Dalkey

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

    • Natural light: Roof lights and glazing positions affect both daylight and how the space stays comfortable.
    • Structural works: Foundations, beams and roof structure are designed by an engineer to suit the site.
    • 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.

    On tight Dalkey sites, plan access for machinery and materials early, as many rear gardens can only be reached through the house or a narrow side passage.

    Related Services in Dalkey

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

    Why Choose RSM

    Why Homeowners in Dalkey Choose Us for Home Extension

    Experienced with Dalkey'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 Dalkey — Frequently Asked Questions

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

    Some extensions in Dalkey 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 Dalkey 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 Dalkey 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 Dalkey, 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 Dalkey.

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    Back to Dalkey All Home Extension Info

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