Adding an in-ground pool is one of the most popular improvements for homes in Benissa. Whether for personal use, holiday rentals or long-term revaluation, a swimming pool transforms the outdoor space and significantly increases the attractiveness of the property.

However, in Spain – and especially in municipalities such as Benissa – it is mandatory to comply with a series of legal and technical requirements before starting the work. This guide brings together everything a homeowner or buyer needs to know, in a practical and clear way.

Why a swimming pool requires a building permit

In Spain, any permanent in-ground pool is legally considered a construction (obra). This means that it almost always requires a municipal license issued by Benissa City Council.

This permit guarantees that:

• The pool complies with local planning regulations

• Safety, drainage and distance regulations are respected

• The property is kept fully legal for future sale or rental

• Protected areas and rights of neighbors are not violated

Skipping this process can lead to fines, complications when selling the property or even orders to legalise or remove the pool.

Types of licenses required

Depending on the type of pool and the complexity of the project, Benissa may require the following:

1. Major Works License

Mandatory when:

• A standard in-ground pool is built

• There is significant excavation or structural work

• Technical rooms, retaining walls or other additional elements are created

It requires a technical project drafted by an architect or technical architect.

2. Minor Works License

Possible only when:

• Pool is very small or simple

• Excavation is minimal

• No major terrain modifications

In practice, most swimming pools in Benissa require major work.

Required documentation

To initiate the file, the following are usually required:

• Deed or Nota Simple of the property

• Topographic survey of the terrain

• Technical project signed by architect

• Detailed plans of the pool (dimensions, depth, technical systems)

• Information on distances to boundaries

• Photographs of the plot

• Builder details (if already chosen)

• Payment of municipal taxes

Normally the architect prepares and submits most of the documentation.

Key regulations to consider in Benissa

Each plot must comply with local urban planning regulations:

Distances to boundaries

A minimum separation is generally required, which is usually around 3 meters (although it can vary depending on the area).

Soil Classification

Urban, developable or rustic land have different regulations.
On rural land the limitations are greater.

Slope and topography

Many plots in Benissa have slopes or terraces, which may require:

• Retaining walls

• Additional excavation

• Structural reinforcements

This influences both the cost and the processing.

Coastal legislation

Some areas near the sea are subject to additional protection regulations.

Easements and underground networks

The location of septic tanks, pipes or easements can condition the exact place where the pool can be built.

Step-by-step process to build a swimming pool in Benissa

1. Plot Evaluation

Confirm the classification of the soil, distances, slopes and possible restrictions.

2. Hiring an architect

Prepares the technical project and advises on legal feasibility.

3. Submission of the license application

The file is presented to the Department of Urban Planning of the City Council.

4. Wait for approval

The time frame usually varies between 3 and 8 weeks, depending on the time and complexity.

5. Start of the works

Implementation must be in line with the approved project and have the necessary supervision.

6. Final certificate of work

The architect issues the certificate once the work is completed.

7. Pool Registration

You must register in the Cadastre to maintain the legality of the property and update tax data.

Common mistakes landlords make

• Thinking that a small pool does not need a license

• Ignoring minimum distances to boundaries

• Building on rural land without checking restrictions

• Not updating the Cadastre after the work

• Failing to plan access for machinery on narrow streets

Avoiding these mistakes saves time, money, and administrative hassle.

Case study: construction of a swimming pool in a villa in Benissa

The property

• 80's villa in Benissa Costa

• Plot of 850 m² with slight slope

• No existing pool

Challenges

• Extra digging due to rocky terrain

• Septic tank located at the initial planned site

• Design adjustment to respect boundary distances

Approximate schedule

• Week 1–2: Writing the technical project

• Week 3–8: Municipal approval

• Week 9–14: Execution of the work

• Week 15: Final Certificate and Registration

Estimated costs

• Construction and excavation: €22,000–€28,000

• Technical project and licenses: €1,800–€3,500

• Extras (lighting, saline system, air conditioning): 3.000–7.500 €

Results

• 30–40% increase in vacation rental revenue

• Estimated 10–12% increase in resale value

• Substantial improvement of the exterior attractiveness of the house

Checklist for building a swimming pool in Benissa

Plot and permits

• Verified soil classification

• Distances to boundaries tested

• Assessment of the unevenness of the terrain

• Location of easements, septic tanks and networks

• Confirmation of absence of environmental or coastal restrictions

Technical documentation

• Topographic

• Architect's project

• Design of technical room and filtration system

• Secured Machinery Access

Town hall

• Prepared Forms

• Calculated rates

• Known estimated timeframes

Design and equipment

• Defined dimensions and depth

• Specified lighting and steps

• Selected saline or chlorine system

• Revised HVAC, roof, or energy efficiency options

After the work

• Final certificate submitted

• Swimming pool registered in the Cadastre

• Archived documentation for future sales

Conclusion: building a swimming pool in Benissa is simple if you follow the right steps

Installing an in-ground pool in Benissa is a very worthwhile investment, but complying with the legal requirements is essential. With good planning, an architect familiar with local regulations, and a well-presented project, the process is clear and offers excellent long-term benefits.