New Construction Declaration Agreement Spain (Declaración de Obra Nueva)

A New Construction Declaration Agreement Spain (Declaración de Obra Nueva) is a formal notarial deed executed before a Spanish Notario (notary public) that officially declares the existence and completion of a newly constructed building or significant structural works on a property, enabling inscription in the Registro de la Propiedad (Land Registry) and the Catastro Inmobiliario (Cadastre) in accordance with Article 20 of the Ley 38/1999 de Ordenación de la Edificación (LOE) and the Real Decreto Legislativo 1/2004, de 5 de marzo, por el que se aprueba el Texto Refundido de la Ley del Catastro Inmobiliario.

The Declaración de Obra Nueva is one of the most fundamental instruments in Spanish real estate law, required whenever a landowner or developer (promotor) completes construction of a new building — residential, commercial, or industrial — and wishes to legally incorporate the structure into the property registry alongside the underlying land. Without this declaration, the building has no independent legal existence in the Registro de la Propiedad, meaning it cannot be mortgaged, sold, inherited, or otherwise legally transferred as a standalone unit separate from the bare land parcel (solar).

Spanish law distinguishes two forms of Declaración de Obra Nueva under Article 20 LOE. The first is the Declaración de Obra Nueva en Construcción (declaration of works in progress), executed during the building phase once the foundation licence (licencia de obras) has been granted by the Ayuntamiento (municipal authority) — this allows the developer to arrange mortgage financing on the partially completed structure. The second is the Declaración de Obra Nueva Terminada (declaration of completed works), executed upon completion of construction once the Certificado Final de Obra has been issued by the director de obra (architect of record) and the licensed occupancy certificate (licencia de primera ocupación or certificado de habitabilidad, depending on the Autonomous Community) has been obtained.

The Ley 13/2015, de 24 de junio, de Reforma de la Ley Hipotecaria (Reform of the Mortgage Law) substantially reformed the requirements for Declaraciones de Obra Nueva. Under the amended Article 202 of the Ley Hipotecaria (LH), the Registro de la Propiedad now requires that new constructions be registered with a georeferenced building footprint (representación gráfica georreferenciada) prepared by a licensed technical architect (arquitecto técnico) or topographer and validated by the Dirección General del Catastro through the IDUFIR (Identificador Único de Finca Registral) or the new Código Registral Único (CRU) system.

The Agencia Tributaria and the Comunidad Autónoma tax office require that the Declaración de Obra Nueva trigger tax compliance for the Impuesto sobre el Valor Añadido (IVA) on new residential construction at 10% under Ley 37/1992 del IVA Article 91, or the Impuesto sobre Transmisiones Patrimoniales y Actos Jurídicos Documentados (ITP-AJD) at rates set by each Comunidad Autónoma for the Actos Jurídicos Documentados (AJD) component, calculated on the declared value of the construction. Additionally, the Impuesto sobre Bienes Inmuebles (IBI) administered by the Ayuntamiento will be updated through the Catastro to reflect the new taxable value of the completed building.

Spain's Ley de Suelo (Real Decreto Legislativo 7/2015, de 30 de octubre) imposes urban planning compliance requirements on any new construction — the building must comply with the applicable Plan General de Ordenación Urbana (PGOU) or Plan Parcial of the municipality, including permitted uses, building height limits (número de plantas), setbacks (retranqueos), and buildable surface (superficie edificable). Failure to obtain the required licencia de obras from the Ayuntamiento before commencing construction, or building outside the permitted parameters, renders the construction ilegal (illegal building — construcción ilegal or fuera de ordenación) and may expose the owner to demolition orders (orden de demolición) issued under Article 51 of the Ley de Suelo and administrative sanctions.

A New Construction Declaration Agreement Spain is required by law every time a landowner, property developer (promotor inmobiliario), or building cooperative (cooperativa de viviendas) completes the construction of a new building or significant structural addition on a property registered in the Registro de la Propiedad. The declaration is necessary to legally incorporate the completed structure into the Spanish land registry system and must precede any sale, mortgage, or subdivision of the completed units.

The Declaración de Obra Nueva Terminada is needed immediately after the director de obra (project architect) issues the Certificado Final de Obra confirming that construction complies with the approved project and the licencia de obras granted by the Ayuntamiento. Under Article 20 LOE, the Notario executing the deed must verify receipt of this certificate before proceeding.

The declaration is required when a developer sells newly constructed homes (viviendas de obra nueva) off-plan or upon completion — Spanish real estate agents (agentes inmobiliarios) and mortgage lenders (entidades de crédito) will require registration of the completed building in the Registro de la Propiedad before processing any mortgage application by buyers under the Ley 5/2019 reguladora de los contratos de crédito inmobiliario.

A Declaración de Obra Nueva is needed when a self-builder (autopromotor) constructs a single-family dwelling (vivienda unifamiliar) on their own land — the structure must be declared and registered to obtain the cédula de habitabilidad or licencia de primera ocupación from the Ayuntamiento and to connect to public water, electricity, and sewage services.

The declaration in the en construcción modality is required when a property developer seeks construction financing from a Spanish bank — mortgage lenders require the partially completed building to be inscribed in the Registro de la Propiedad to create a valid mortgage (hipoteca de edificio en construcción) under Articles 110 and 111 of the Ley Hipotecaria.

The agreement is also required when inherited land with pre-existing but unregistered buildings needs to be formalised in the context of an inheritance (herencia) or property partition (partición de bienes) — in such cases, Article 28 of the Ley Hipotecaria provides an alternative registration route for buildings over four years old (antigüedad acreditada) without a current demolition order.

Under the Ley de Arrendamientos Urbanos (LAU) 29/1994, Spanish tenancy law sets minimum duration (5 years individuals, 7 years entities) and deposit requirements. The Código Civil Articles 1445–1541 govern sale of property. The Ley Hipotecaria governs the Registro de la Propiedad. The Ley 5/2019 (LCCI) regulates mortgage lending with mandatory FEIN/FiAE disclosure. The Impuesto sobre Transmisiones Patrimoniales (ITP) applies to property transfers.

A valid New Construction Declaration Agreement Spain under Article 20 of the Ley 38/1999 de Ordenación de la Edificación (LOE) and the Ley Hipotecaria must contain the following essential elements to be accepted by the Registro de la Propiedad and the Catastro Inmobiliario.

Identification of Declarant and Property: Full name, DNI/NIE/NIF, and address of the owner or developer (promotor). The underlying land parcel must be identified by its Finca Registral number, Tomo, Libro, and Folio in the Registro de la Propiedad, and by its Referencia Catastral in the Catastro Inmobiliario administered by the Dirección General del Catastro under the Ministerio de Hacienda.

Description of the Construction: A detailed physical description of the new building including: number of floors above and below ground (plantas sobre rasante y sótanos), total constructed surface area (superficie construida total) and usable surface area (superficie útil) per floor and per unit, permitted use (uso) — residential, commercial, industrial, or mixed — building materials, structural system, and any common elements (elements comunes) where the declaration covers a building to be divided into horizontal property units.

Licence Documentation: Reference to the licencia de obras or licencia urbanística granted by the Ayuntamiento, including the licence number, date of grant, and the municipal resolution (acuerdo municipal) authorising construction. The Notario must verify that the licence was in force and that the described works conform to its scope.

Technical Certificates: The Certificado Final de Obra issued and signed by the director de obra (arquitecto) and the director de ejecución de obra (arquitecto técnico), certifying that construction was completed in accordance with the approved technical project (proyecto técnico) and the building licence. Under the Código Técnico de la Edificación (CTE) approved by Real Decreto 314/2006, the technical project must have complied with the basic safety, habitability, energy efficiency, and accessibility requirements.

Georeferenced Footprint: A georeferenced building footprint (representación gráfica georreferenciada del edificio) compliant with Article 202 of the Ley Hipotecaria as reformed by Ley 13/2015, in GML or equivalent format validated by the Dirección General del Catastro. This requirement enables the Registrador de la Propiedad to coordinate the registered description with the official Cartografía Catastral.

Declared Construction Value: The declared value of the construction (valor declarado de la obra) for tax purposes — this value is the basis for calculating the Actos Jurídicos Documentados (AJD) stamp duty component of the ITP-AJD, levied at rates between 0.5% and 1.5% depending on the Comunidad Autónoma, pursuant to the Real Decreto Legislativo 1/1993 del ITP-AJD.

Energy Performance Certificate: A copy of the Certificado de Eficiencia Energética issued by a licensed technician and registered with the competent Comunidad Autónoma authority, mandatory under Real Decreto 235/2013 for all new buildings in Spain. The certificate assigns the building an energy rating from A (most efficient) to G (least efficient).

Notarial Execution: The deed must be executed before a Spanish Notario, who verifies the identity of the declarant, the legitimacy of the documentation, and compliance with Article 20 LOE. The Notario transmits the deed electronically to the Registro de la Propiedad via the Sistema Integrado de Justicia (SIGNO) platform.

Forms-legal.com provides this New Construction Declaration template as a practical reference for property owners and developers in Spain. Given the complexity of notarial and registry requirements, all Declaraciones de Obra Nueva should be formalised before a qualified Spanish Notario and reviewed by an abogado especialista en derecho inmobiliario.

Under the Ley de Arrendamientos Urbanos (LAU) 29/1994, Spanish tenancy law sets minimum duration (5 years individuals, 7 years entities) and deposit requirements. The Código Civil Articles 1445–1541 govern sale of property. The Ley Hipotecaria governs the Registro de la Propiedad. The Ley 5/2019 (LCCI) regulates mortgage lending with mandatory FEIN/FiAE disclosure. The Impuesto sobre Transmisiones Patrimoniales (ITP) applies to property transfers.