Project case · Second storey

    Modern second-storey extension on a terraced house

    This project shows how a terraced house can gain a full extra floor within the existing footprint, with dark modern cladding and generous glazing.

    BouwGarant · 10-year structural warranty · Response within 24 hours

    Street view of a terraced house with a modern second-storey extension
    The extension adds a full floor without increasing the footprint.2026

    Project type

    Second-storey extension

    Home type

    Terraced house

    Indication

    approx. 35 m2 of extra space

    Finish

    Dark cladding with light window frames

    Result

    More upstairs rooms, garden preserved

    Project overview

    Approach

    This project extends the existing home vertically with a modern second-storey addition. The new level creates extra upstairs space without reducing the garden.

    Dark horizontal cladding, white frames and large glazed openings give the home a clean contemporary look while keeping the volume calm and readable from the street.

    Photo gallery

    Street view of a terraced house with a modern second-storey extension
    Project photo 1: The extension adds a full floor without increasing the footprint.
    Modern dark second-storey extension on a terraced house with large windows
    Project photo 2: Front facade with new second storey, dark cladding and light window frames.
    Rear facade of terraced house with dark second-storey addition and white frames
    Project photo 3: Rear side with clean lines and generous daylight on the new floor.
    Side facade of modern second-storey extension with horizontal cladding
    Project photo 4: The side facade shows the calm horizontal cladding of the new storey.
    Second-storey extension project in a residential street beside terraced homes
    Project photo 5: Neighbourhood context with the extension and surrounding homes visible.

    Extra living space without losing garden area

    A second-storey extension is ideal when the home needs more space but the plot is compact. Building upward keeps the garden intact while creating room for bedrooms, a workspace or an additional bathroom.

    Modern facade with calm detailing

    The dark cladding supports a contemporary renovation style and contrasts sharply with the light window frames. Horizontal lines make the new level feel wider and give the home a high-quality finish.

    Structure and permits from the start

    For a second-storey extension, load-bearing capacity, foundations, stair access and permits shape the design. Aanbouw 24/7 checks these items early so the extra floor is buildable and the planning stays realistic.

    Frequently asked questions

    Is a second-storey extension possible on a terraced house?+

    Often yes, but the existing foundations, load-bearing walls and roof structure need to be checked first. Stair access and permit rules also define what is feasible.

    Do I need a permit for a second-storey extension?+

    Usually yes. A second-storey extension changes the height and appearance of the home. We can coordinate drawings, structural calculations and the permit application.

    Response within 24 hours

    Planning a second-storey extension?

    Send us a few photos of your home and tell us what you want to add. We will advise on structure, permits and a realistic first budget.