What Are the Best Extensions to Increase Your Home’s Value?

ARCHITECTURE

Jan 21

Written By Francisco Javier Muñoz Fuentes

Not all extensions have the same impact. Some offer a better return on investment than others. Below, we highlight the types of extensions that can be the most beneficial in the long term.

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1. KITCHEN EXTENSION

The kitchen is one of the most important spaces in any home. Expanding it not only enhances functionality but also makes it a major selling point for buyers who value a modern, spacious kitchen. This improvement can increase the home’s value by 6% to 7%.

In locations like Estepona, Sotogrande, or Manilva—where homes often attract international buyers—a large, modern kitchen can significantly boost the perceived value of a property.

2. ADDING A BEDROOM

An extra bedroom, especially in multi-level homes, can be an excellent choice. The demand for homes with more bedrooms remains strong as families grow or buyers seek additional space to fit their lifestyle. Adding a bedroom can raise the home’s value by 5%, depending on the area’s demand.

For instance, in high-demand locations such as Marbella or Málaga, adding a bedroom or expanding the living area can result in a substantial increase in property value. In quieter areas like Benahavís or Casares, the value increase may be slightly lower but still significant, as enhanced functionality and comfort are always appreciated.

3. OUTDOOR SPACES

If you have a garden or terrace, adding a sitting area or a covered porch can be an excellent way to increase your home’s value. Well-designed outdoor spaces are increasingly desirable, especially in the Costa del Sol, where the climate encourages outdoor living most of the year.

In areas like Estepona and Manilva, where many properties feature sea or mountain views, a well-designed terrace can increase a property’s value by 5% to 10%. In Málaga, where homes range from urban apartments to houses with outdoor spaces, such an addition can make your property stand out in the market.

4. ADDING A FLOOR OR BASEMENT

If the plot allows, adding an extra floor or a basement can significantly boost a property’s value without altering the exterior design too much. This type of extension can add as much as 15% to the property’s value.

In locations like Benahavís, known for its exclusive villas, creating a basement for a home cinema, gym, or wine cellar is a particularly appealing option for high-end buyers. Meanwhile, in Casares, adding an upper floor could be ideal for maximizing views of the sea or surrounding countryside.

5. LIVING ROOM EXTENSION

The living room is one of the most used spaces in any home, and expanding it can greatly improve quality of life. A larger living room can better accommodate various needs, and creating open-plan spaces can increase a home’s value by 7% to 12%.

In places like Marbella or Estepona, where modern homes often emphasize open designs, expanding the living room can make a property feel more luxurious and inviting.

CAUTION: It’s important to note that the specific value added by each extension depends on individual cases. Every property and location is unique, so a thorough evaluation by an expert is essential to accurately assess the impact on your home’s value.

Ready to Start? If you’re thinking about expanding your home, Munoz Barcia Arquitectos is here to make your vision a reality. Our team of experts can create the perfect extension to increase your home’s value while meeting your needs. Contact us today!

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