Is your growing family making your current home feel cramped? Moving isn't always practical or desirable. A house extension offers a reliable alternative. Explore expert-recommended options like attic conversions, roof elevations, outbuildings, and basement fittings to seamlessly expand your living space.
One of the most popular ways to add living space is building an extension attached to your home—ideal for a teen suite, elderly studio, or extra room. You'll need sufficient ground space, and the process mirrors new construction: earthworks, foundations, masonry, roofing, plus electrical, plumbing, and painting work. Integrating it with your existing structure requires careful matching. Budget €800–€2,000 per m², depending on materials and finishes, based on real-world projects we've overseen.
Attic conversions cost €800–€1,500 per m² and are increasingly popular for gaining usable space. Challenges vary by attic type: 'lost' attics have ceilings under 1.80m or obstructive framing. These aren't insurmountable—roof elevation addresses height issues, while frame modifications free up floor area. Transform the finished space into a master suite, home office, playroom, or bathroom, drawing from proven renovation techniques.
In dense urban areas, elevating your home maximizes space without needing extra land. This method creates full floors, often improving roof insulation too. Costs range €1,000–€1,750 per m² due to complexity, requiring seasoned professionals. Note: expansions over 20 m² need a building permit. Our experience confirms this as a high-value, durable solution.
Can't build out or up? Convert your basement into livable space. First, address moisture issues for habitability. Install efficient VMC ventilation to refresh air and prevent dampness, plus robust insulation against heat loss. Expect €800–€1,500 per m². This approach delivers comfortable, energy-efficient results when done right.
