Extend Your Kitchen or Living Room, Convert Attic or Garage, Create a New Office, Suite or Sunroom Without Moving in Costa Brava
Smart, Cost-Effective and High-Value Home Extensions in Costa Brava Tailored to Your Space, Your Needs and Your Lifestyle
Expanding your house is often the smartest way to gain space without changing neighbourhood, schools or lifestyle in Costa Brava. Instead of selling and starting over, more and more homeowners choose to enlarge their existing home to adapt it to new needs: growing family, remote work, more comfort, better design or simply the desire to modernize. Montana Renovacion designs and builds house extensions that increase comfort, modernize spaces, create better circulation and dramatically boost property value. Whether you want a bigger kitchen, a larger living room, a new bedroom, a quiet home office or even a second storey addition, we transform unused or limited areas into highly functional living space.
Why homeowners prefer extending instead of moving in Costa Brava
Buying a bigger house is expensive, uncertain and stressful. When you extend instead of moving, you avoid notary fees, agency commissions, new furniture, transportation costs and the risk of buying a house that still needs renovation. An extension gives you exactly the space you need while staying in your familiar environment. With a well-designed extension by Montana Renovacion, you get more space, more light, more comfort, and a higher resale value — without the emotional and financial chaos of moving.
How much does a home extension cost and which extension type is most profitable
Extension cost depends on the type of project: rear extension for kitchen enlargement, side extension for living room expansion, attic conversion to create a bedroom or office, garage conversion into a suite or rental unit, or full vertical extension to add an entire new floor. Each option has a different cost and return on investment. Montana Renovacion studies your structure, your land, your goals and your budget to propose the most profitable and realistic extension scenario.
Most requested home extension ideas in 2025 in Costa Brava
Kitchen extension with large sliding doors and open plan layout
Living room expansion to create bigger gathering and family areas
Garage conversion into guest suite, studio, gym or rentable space
Attic conversion into master bedroom, office, playroom or storage room
Glass sunroom or veranda to maximize natural light and garden connection
Second storey addition to double surface without using garden space
How to avoid mistakes when planning a house extension in Costa Brava
The biggest mistake is to design an extension that does not integrate naturally with the existing home. A successful extension must align roof lines, respect architectural proportions, ensure waterproofing, provide strong insulation, and maximize natural light. Montana Renovacion studies your existing structure, verifies feasibility, proposes multiple extension strategies and selects the best materials, so you avoid bad decisions, budget overruns and regrets.
Why choose Montana Renovacion as your house extension partner
Instead of coordinating 8 different trades on your own, Montana Renovacion centralizes everything in one team: structure, foundation, masonry, carpentry, roofing, insulation, electricity, plumbing, flooring, painting, exterior joinery and finishes. One company, one project manager, one responsibility. Your project advances faster, smoother and more safely. We coordinate every stage, control quality at each step and deliver a clean result on time.
Which home extension adds the most value to your property
Kitchen enlargement, living room expansion with panoramic glass, creation of a master bedroom suite, attic conversion and glass veranda are among the most profitable extensions. They generate more comfort for daily life and more value at resale. Montana Renovacion helps you select the best improvement based on market logic, lifestyle needs and architectural potential.
Request your home extension consultation with Montana Renovacion
Tell us what kind of extra space you want and what problems you want to solve. Our extension specialists analyze your home, check the potential, propose extension concepts, show examples and provide a realistic budget estimation. You receive clarity, vision, and a concrete strategy. Your new living space is one decision away — expand without stress, expand smart, expand with Montana Renovacion.
Home extension cost in 2025
The cost of a home extension depends on the surface added, the structural modifications required and the materials selected. In 2025, extending your current home is statistically less expensive than buying a bigger house because you avoid agency fees, notary fees, new furniture and relocation costs. Montana Renovacion gives homeowners a clear estimate based on their needs, and proposes the extension solution that gives the most square meters and the highest value for the lowest possible cost.
Home extension vs moving: which is more profitable
Moving means paying for a new mortgage, property transfer taxes, new furniture, and often doing renovation works again in the new place. Extending your current home keeps you in your neighbourhood and gives you exactly the space you need. This is why the majority of homeowners choose house extension instead of moving. With a properly designed extension, you increase comfort, gain real living space, and raise the resale value of your home.
Best ways to bring natural light into a home extension
Natural light is one of the most important factors of a successful extension. The most effective solutions are large sliding glass doors to the garden, panoramic windows, roof windows, skylights and glass veranda concepts. Montana Renovacion studies orientation, height, room circulation and glazing options to maximize brightness and energy performance. A bright extension creates visual volume, improves well-being, and makes the new area feel bigger than it actually is.