Handover, warranties and building life in Spain

The closing sequence chains two acts of different natures. The final works certificate, signed by the works director and the execution director and subject to obligatory professional validation, is the technical declaration that the works are complete in accordance with the design and the regulations. On that basis, the acceptance certificate formalises the developer's acceptance, with or without reservations for pending snags, and produces its three major effects: it transfers possession and risk, opens the legal warranty periods and starts the economic settlement clock. Timescales, reservations, tacit acceptance and effects are developed in the article on works handover and the final certificate.

From acceptance, the three warranty periods of the LOE (Ley de Ordenación de la Edificación, Spain's building act) run in parallel, each with its object and its liable parties: one year for material damage from execution defects affecting completion or finishes, for which the contractor answers; three years for damage caused by defects breaching habitability requirements; and ten years for damage affecting structural elements and compromising the building's mechanical strength and stability. On the ten-year period rests the system's characteristic financial guarantee, the ten-year damage insurance, obligatory in housing, with its technical control body. The complete map of periods, liable parties and claim routes is analysed in the article on LOE warranties and liability, and the insurance mechanics in the one on the ten-year insurance.

The material delivery of the building is completed by its documentary delivery: the libro del edificio (building logbook), gathering the final design with its modifications, the identification of the agents, the minutes, the quality control documentation and the use and maintenance instructions. It is not archival formalism: it is the tool that organises maintenance, the reference for any future intervention and the first documentary evidence in any claim. Its content and regime, together with its extension to the existing stock through the existing building logbook for renovation, are developed in the corresponding articles of the branch.

The closure has its own economics, and it is played before reaching it. An acceptance with well-documented reservations is worth more than a hurried clean one: reservations keep the pressure on the snags without blocking the delivery. The retention and the final settlement, whose clocks acceptance starts, are the last economic negotiation of the works, and they arrive well or badly depending on how certification was done for months. And the legal warranties are only worth what the documentation enabling them is worth: a complete building logbook and orderly minutes turn a defect into a file; their absence turns it into an uncertain lawsuit.

The first is accepting without minutes or letting acceptance happen tacitly without control, losing the photograph of the delivery state. The minutes fix the delivery state and the start of the warranty periods.

The second is confusing the clocks: claiming through the wrong period's route, or letting the finishing year pass while waiting for the defect to grow. The three LOE periods run from acceptance and cover different defects.

The third is delivering an incomplete building logbook, without the quality control documentation or the design's real modifications, weakening every future position. The logbook is assembled during the works and checked before delivery.

The fourth is treating the closure as the contractor's formality: acceptance, settlement and final documentation are, above all, acts of defence for the developer and the future owners. The developer leads the closure because it answers to the purchasers.