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Planning legality of a property in España

Urban planning · Real estate due diligence

The fact that a property exists physically, in the Catastro or in the Land Registry does not in itself prove that all its works and uses comply with planning regulations.

Before buying a property in España, it is advisable to check whether the property, its extensions, outbuildings, use and works have the required planning authorisation and whether there are any proceedings, restrictions or discrepancies that may affect the buyer.

Last updated: 9 August 2026 Jurisdiction: España Planning: autonomous community + municipality
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What planning legality means

There is no single national document certifying the full planning status of every property in España

National legislation establishes a general framework, but territorial planning, licences, responsible declarations, planning enforcement, deadlines and special situations are mainly governed by regional legislation and municipal planning regulations. For this reason, the review must be carried out for the property's specific location.

PLAN

Planning regulations

They determine the permitted use, buildability and conditions applicable to the plot and the building.

WORKS

Works carried out

It must be checked whether the building and subsequent extensions have the administrative authorisation required at the relevant time.

USE

Authorised use

The fact that a space can physically be used as a dwelling does not demonstrate on its own that this is the use permitted under planning regulations.

EXP

Planning enforcement

It should be investigated whether there are any proceedings, orders, restrictions or restoration measures that could affect the property.

Practical rule The Property Registry, Catastro and planning authorities answer different questions. The more significant an extension or discrepancy is, the less prudent it is to rely on a single document.

Four different realities

The deed, Property Registry, Catastro and physical reality must be compared with one another

A dwelling may show apparently correct information in one source and, at the same time, include an extension or use requiring an additional planning check.

Source What it helps verify What should not be assumed
Deed The description contained in the title deed and the property's documentary history. That every physical alteration made after it was executed has been legalised.
Property Registry Ownership, rights, encumbrances, and certain planning acts or proceedings recorded in the Registry. That the absence of a planning entry is equivalent to a municipal certificate of full legality.
Catastro Administrative description, reference number, graphic representation, and certain physical or economic details of the property. That registering a building in the Catastro replaces any required planning authorisations.
Physical reality What actually exists: square metres, floors, swimming pools, outbuildings, enclosed terraces, garages or layouts. That construction work is legal simply because it has existed for many years.
Planning authority Applicable planning regulations, enabling authorisations, the status of the building, and proceedings within its remit. That documentation from another source replaces municipal or regional verification when this is required.
Catastro is not the Property Registry. The Directorate-General for Cadastre defines the Real Estate Cadastre as an administrative register in which real property is described. When assessing a purchase, its information should be cross-checked against the Land Registry, the seller’s documents and planning checks.

Checklist before buying

What planning due diligence should verify

The exact scope depends on the type of property and its location, but these checks help quickly identify situations requiring a more in-depth review.

01

Land Registry description

Compare the number of floors, built area, appurtenances and other characteristics recorded in the Land Registry with what actually exists.

02

Cadastral description

Review the plot, construction, surface area and graphical representation to identify differences requiring an explanation.

03

Current planning regulations

Identify the planning classification and regulatory regime applicable to the plot, as well as relevant permitted uses and conditions.

04

Original construction

Check the authorisation, compliance, permit or planning instrument that was required for the construction under the applicable regulations.

05

Subsequent extensions

Enclosed terraces, added rooms, swimming pools, porches, appurtenances or additional floors require separate verification.

06

Changes of use

A former commercial premises, office, storage unit or garage used as a dwelling may require specific planning authorisations under the applicable regulations.

07

Occupation or use

For completed construction, the administrative authorisation, responsible declaration or equivalent regime required to use the building for its intended purpose must be reviewed.

08

Proceedings

Investigate planning enforcement proceedings, restoration of legality, administrative orders or entries related to the property.

09

Sector-specific protections

Certain properties may also be subject to heritage protection, coastal, road, public-domain, environmental or other sector-specific regulations.

Licences and authorising documents

The documentation required depends on the works involved and the applicable regional regulations.

Article 28 of the consolidated text of the Land and Urban Rehabilitation Act requires, for certain new-build declaration procedures, the relevant approval, administrative approval or authorisation required under the applicable regional and urban-planning legislation.

INI

Construction

The works must correspond to the project and the administrative act required under the applicable legislation.

FIN

Completed works

State regulations provide for additional documentation to certify completion and the conditions required for handover and use of the building.

DR

Responsible declaration

Where urban-planning legislation replaces an authorisation with a prior notification or responsible declaration, the specific regime and its documentation must be checked.

The name of the document may vary. Occupancy licence, first occupancy licence, responsible declaration, prior notification or other mechanisms should not be treated as though there were a single identical system across all autonomous communities and municipalities.

Older buildings

Registering a building based on its age does not mean declaring that it complies with planning regulations.

This is one of the issues that causes the most confusion in sales of older homes or homes with extensions carried out years ago.

REG

There may be a Land Registry entry

Article 28.4 of the consolidated state text provides for a specific procedure for certain constructions in respect of which it is no longer possible to take restoration measures involving demolition because the applicable time limits have expired.

≠

However, registration does not mean planning compliance

The Directorate-General for Legal Certainty and Public Trust has reiterated that registration of a building based on its age does not prejudge its planning legality or constitute a declaration of compliance with planning regulations.

Do not use “it is registered” as the final answer to a planning query. A property may require a determination of its exact administrative status, what limitations apply and what future works may be possible. These consequences depend on the applicable regional and municipal legislation.

Out-of-planning status and equivalent situations

A building subject to planning restrictions should not automatically be confused with a fully compliant property or an immediate demolition order

Planning regulations may recognise different legal situations for existing buildings that do not fully comply with the current planning framework. Their specific effects must be reviewed in the relevant autonomous community and municipality.

EST

Identify the status

It is necessary to know which designation and legal regime actually apply to the building under the applicable legislation.

LIM

Analyse limitations

There may be restrictions on renovations, extensions, reconstruction, change of use or other future works.

VAL

Impact on the purchase

A planning restriction may affect the intended use, financing, future renovations and the property's valuation.

National legislation requires certain planning situations to be recorded in certain deeds. These include land with buildings in an out-of-planning status in the circumstances provided for by law. This reinforces the need to review both the deed and the current planning regulations.

Warning signs

Situations that warrant a more thorough planning review

M²

More square metres in reality

The property appears significantly larger than the surface area shown in Land Registry or Cadastre documentation.

TZA

Enclosed terrace

An open terrace has been converted into a living room, bedroom or indoor space without clear documentation regarding the work carried out.

PIS

Additional floor

There is a floor, converted basement, mezzanine or built volume that does not match the available descriptions.

POOL

Added pool or outbuilding

Swimming pools, storage rooms, guest houses, porches or additional structures may have been built later.

USE

Use different from the original

Commercial premises, offices, garages or storage rooms physically converted into residential accommodation must be assessed under the applicable regulations.

DOC

Incomplete documentation

The seller cannot provide documentation for major works and merely states that “it has been like this for many years”.

A discrepancy does not in itself prove that there is a breach. It is a sign that warrants investigation. It may have a documentary, Cadastre, Land Registry or planning-related explanation that must be identified before deciding how to proceed.

Planning enforcement and the Land Registry

Certain planning procedures may be entered in the Property Register

National legislation provides for the registration or annotation of various planning-related acts including certain enforcement or legal compliance restoration proceedings.

NS

Review the title search report

This is an essential check to identify ownership, encumbrances and entries that may affect the property.

However, it remains only one part of the due diligence process.

AYT

Check with the competent authority

Where there is a material planning-related concern, it should be verified with the Town Hall and, where applicable, with the competent regional or sector-specific authority.

The absence of a registry entry does not replace this check.

Why both checks are necessary. The national framework itself provides for communications between the Property Register and planning authorities. Registry information may reveal significant issues, but the specific planning status is determined in accordance with the regulations and actions of the competent authority.

What to request from the seller

Documents that may help reconstruct the property's planning history

Not all of them will exist or have the same name in every jurisdiction. The list should be adapted to the age, type and location of the property.

LIC

Licences or authorisations

Documentation relating to the original construction and any subsequent works where these required administrative approval.

PRO

Projects and certificates

Technical projects, completion certificates or other documentation that makes it possible to compare what was authorised with what was carried out.

OCU

Occupancy documentation

Licence, authorisation, responsible declaration or equivalent where required under regional legislation.

REG

Title deeds and land registry extract

They help reconstruct the land registry description and changes that have been formally recorded in the Land Registry.

CAT

Cadastral information

It allows the description, age, surface area and representation of buildings to be compared with other sources.

EXP

Planning decisions

If there is a history of legalisation, recognition, enforcement action, out-of-planning status or any other situation, these must be reviewed in full.

Recommended process

How to review planning status before committing to a purchase

01

Assess the physical reality

Identify floor area, storeys, ancillary structures, swimming pools, enclosed terraces, basements and actual uses before reviewing documents.

02

Obtain Land Registry and Cadastre records

Compare the actual property with the title deed, land registry extract, registered description and cadastral data.

03

Identify discrepancies

Do not try to resolve them yet. First, clearly identify which floor area, building or use does not match.

04

Review the applicable planning framework and regulations

Determine the autonomous community, municipality, land classification, planning ordinances and any potential sector-specific constraints.

05

Request planning permits and approvals

Check relevant works against applicable licences, authorisations, responsible declarations or equivalent documentation.

06

Check case files and administrative status

Where there is a risk, request information from the Town Hall or relevant authority and review previous decisions.

07

Determine the impact on the purchase

Decide whether the issue must be resolved before buying, documented contractually, or whether it is advisable not to proceed.

Before making a reservation or paying a deposit

Significant planning concerns should be addressed before entering into commitments that are difficult to reverse

If the investigation has not yet been completed, the buyer should know which documents are missing and what the consequences would be of subsequently discovering a planning issue.

RES

Reservation

Avoid an upfront payment financially committing the buyer before clarifying an issue that has already been identified.

Earnest money deposit

Earnest money deposit

If the transaction depends on a pending planning check, the contractual terms must be expressly drafted for the specific case.

NOT

Do not wait until the notary appointment

The final deed stage is not the right time to discover for the first time an extension, change of use or significant planning issue.

The guide on reservation of a property in España and the guide to the earnest money agreement cover these contractual stages separately.

Foreign buyers

The buyer's nationality does not remove the need for a local planning review

For a buyer living outside España, it can be particularly difficult to distinguish between a physically appealing property and one whose documentation, use and extensions have been properly reviewed.

Do not compare photographs alone

An attractive renovation may have altered floor areas or uses that must be verified through documentation.

Do not assume the seller has already checked everything

Due diligence must be carried out in the buyer's interest and for the specific transaction.

Do not transfer rules between regions

A planning procedure or deadline applicable in one autonomous community may not be the same with that of another jurisdiction.

Related guides

Continue the due diligence without duplicating this planning check

Property due diligence in España Ownership, encumbrances, Catastro, planning, homeowners' association, occupants and documentation. Nota simple, Land Registry and Cadastre Understand what information each system provides and how to identify discrepancies. Encumbrances, debts and the community Mortgages, liens, homeowners' association debts and other related obligations. Property inspection and hidden defects Distinguish between the physical and technical review and the legal and planning checks. Property reservation What to check before paying an initial deposit. Earnest money contract How to address conditions, breaches and risks before signing the deed. Buying a new-build property Licences, developer, warranties, handover and specific new-build documentation. Buying a home in España step by step Integrate the planning review into the overall acquisition process.

Official sources

Legal and institutional basis used for this guide

The guide uses the national framework to explain the common principles. The review of a specific property must be completed with the legislation of its autonomous community, municipal planning regulations and the competent authority.

BOE · Consolidated Text of the Land and Urban Rehabilitation Act National framework on land ownership, new-build declarations, planning information and registrable acts. BOE · DGSJFP Resolution of 31 July 2025 Confirms that registering a building based on its age does not determine its planning legality. Directorate-General for the Cadastre Defines the nature and function of the Catastro as an administrative register describing properties. General Council of Notaries · Homes and properties Institutional information on documentation and checks within a property sale and purchase.
Required local source. This page does not assign a single limitation period, licence name or legalisation procedure or out-of-planning regime for all of España because these matters may depend on the autonomous community, municipality, type of land, date of the works and applicable sector-specific regulations.

When there is a discrepancy

Identify the issue before deciding whether it can be resolved

A planning issue should not be addressed with a generic response. It may be necessary to review the documentation with a specialist lawyer, architect, qualified technician or planning authority, depending on the nature of the issue.

Frequently asked questions

Planning legality of a property in España

The physical reality should be compared with the title deed, Land Registry, Catastro, planning regulations and planning documentation. Where there are extensions, changes of use or other concerns, the status with the competent authority should also be checked. There is no single nationwide document that replaces all these checks.

It should not be assumed. The Catastro is an administrative register that describes real estate properties. Its information is useful for cross-checking the property, but it does not replace any licences, authorisations or planning checks that may be required.

Not necessarily. The Directorate-General for Legal Certainty and Public Trust has stated that registering a building on the basis of its age does not prejudge the planning legality of the construction, nor does it by itself imply compliance with planning regulations.

The discrepancy should be investigated. It may be due to different descriptive criteria, pending updates, physical alterations or other causes. If the difference coincides with an extension or added construction, its planning status should also be reviewed.

That assumption should not be made. The effect oel pasof time depends on the applicable planning regulations, the type of work, the land, possible protections and other circumstances. Even where construction can be entered in the Land Registry based on its age, this does not amount to a general declaration of planning legality.

It is a planning status whose specific definition and effects depend on the applicable legislation. It may involve restrictions on certain works, extensions or future actions. The specific rules should be reviewed for the autonomous community and municipality where the property is located.

Yes. State legislation provides that certain planning enforcement proceedings, restoration of legality and other planning acts may be recorded in the Land Registry. Even so, a Land Registry check does not replace a planning enquiry where there are substantive doubts.

It depends on the issue. A lawyer can review the legal and contractual position; an architect or other qualified professional can compare the physical reality, projects and technical parameters; and the Town Hall or competent authority is the source of administrative information on planning, proceedings and planning permissions within its remit.

Relevant issues should be investigated before taking on obligations that are difficult to undo. If an important planning check is still pending, the terms of any reservation or contract must be expressly tailored to the case.

Notice: This guide provides general information and does not replace personalised legal, planning, technical, Land Registry or notarial advice. Regulations on planning, licences, responsible declarations, enforcement, limitation periods, out-of-planning status and legalisation may vary depending on the autonomous community, municipality, land classification, date of the works and characteristics of the property. Before buying a property with a potential planning issue, the specific regulations and administrative status should be verified.

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