Buying a villa in Moraira, Altea, or Javea is always a sound decision, but renovating it intelligently is what marks the difference between a nice house and a highly profitable investment. In the luxury real estate market, not all improvements are worth the same.

At La Quinta Fachada, we work daily with investors and owners who ask us the same question: “If I invest €50,000 here, how much value do I add to the house?”. Well-planned architecture is a financial tool. Below, we analyse the renovations that add value and maximise ROI (Return on Investment) on the Costa Blanca.

The “open concept”: Visual square metres that sell

If there is a king among renovations that add value, it is knocking down walls. Villas built in the 80s and 90s in areas like Denia or Benissa often feature closed kitchens and dark corridors.

The strategy: Unify the kitchen, dining, and living areas.
The return: The international buyer (Northern European, above all) does not want isolated kitchens. Opening up the space not only modernises the home but increases the perception of square footage and light. A 60m² open-plan day area is valued much higher than three small 20m² rooms.

En-suite bathrooms: Privacy is luxury

When planning renovations that add value, the number of bathrooms matters just as much, if not more, than the number of bedrooms. The current luxury standard demands privacy.

The strategy: Is it worth sacrificing a small box room to turn it into a second bathroom or an en-suite for the master bedroom? The answer is yes.
The return: A 4-bedroom villa with 2 bathrooms has a much lower price ceiling than a 3-bedroom villa where each has an en-suite bathroom (3 bathrooms). In the market of Altea Hills or Cumbre del Sol, the “bath-to-bed ratio” is a key price indicator.

Energy efficiency: Invisible but vital investment

It may not be as “sexy” as a marble kitchen, but improving the thermal envelope is one of the safest renovations that add value today.

The strategy: Replacing old joinery (windows) with thermal break systems and low-emissivity glass, and installing aerothermal systems (air source heat pumps).
The return: Buyers are increasingly conscious of sustainability and energy costs. A villa with an A or B energy certificate sells much faster and at a better price than one with a G rating, especially to German or Scandinavian buyers who value thermal comfort over pure aesthetics.

The exterior: First impressions on the Costa Blanca

In our climate, life happens outside. Neglecting the exterior is a financial error. Renovations that add value must always look to the garden.

The strategy: It is not just about the pool. We are talking about creating a summer kitchen, bioclimatic pergolas, or improving the façade (modernising balustrades, removing dated arches).
The return: In Javea or Calpe, outdoor living is the main selling point. An exterior that functions as a “second living room” skyrockets the perceived value of the property.

What NOT to do (Over-personalisation)

To maximise ROI, the design must be sophisticated yet neutral. Investing in extremely personal finishes (red tiles, fixed artistic murals) usually limits the market.

Renovations that add value are those that combine functionality, light, and noble, timeless materials. If you are thinking of renovating to sell or to increase the value of your assets on the Costa Blanca, contact us. At La Quinta Fachada, we design with your well-being and your wallet in mind.