Works handover and the final certificate

The certificado final de obra (final works certificate) is the site direction's declaration that the works are complete and conform to the design and the applicable regulations. Its two signatures reproduce the system's distribution of functions: the execution director certifies the material execution of the works under their control, and the works director certifies that the building has been carried out under their direction in accordance with the design and is fit for its intended use. It is also one of the documents subject to obligatory professional validation under Royal Decree 1000/2010.

Its position in the circuit is that of a key: without the final certificate there is no orderly acceptance, and the administrative processing of the building's use, first occupation by licence or responsible declaration depending on the territory, requires it as the central piece. It is accompanied by the works' final documentation, description of the modifications introduced and list of the controls performed, which will feed the building logbook.

Acceptance is the act by which the contractor delivers the works to the developer and the latter accepts them. The LOE formalises it in minutes signed by both which must record the intervening parties, the final cost of the contract's material execution, the declaration of acceptance, with or without reservations, specifying where applicable the observed defects and the period to remedy them, and the guarantees required of the contractor.

The timescale mechanics protect the closure against inertia: acceptance must take place within thirty days of the completion attested by the final certificate, unless otherwise agreed, and is deemed tacitly produced if, that period elapsed, the developer has not stated reservations or a reasoned rejection in writing. Rejection, for its part, must be reasoned, in writing, and set a new date for acceptance.

Reservations are the system's fine instrument: they allow receiving the building without giving up the snags, documenting defects and a remedy period, with a new record once remedied. Acceptance with well-drafted reservations is almost always a better position than total rejection, which blocks the delivery, and than a hurried clean acceptance, which gives away the pressure on the pending items.

Effect	Content
Possession and risk	The building passes to the developer; later damage ceases to be the contractor's account except under warranties
LOE warranties	The one, three and ten-year periods run from acceptance
Settlement	The clock starts for the general measurement and the contract's final settlement
Retention	The agreed calendar for its release opens, linked to the reservations
Administrative life	The final certificate enables the processing of use and definitive utility connections

The counting of the warranties from acceptance, and from remedy for the reserved items as agreed, makes the minutes the most important date of the building: the whole architecture of liabilities developed in the article on the LOE warranties hangs from it. And the contract's final settlement, whose economic mechanics are covered in the article on the works settlement, finds here its formal starting gun.

The first is letting the thirty days run without minutes or written reservations, consummating a tacit acceptance without a photograph of the delivery state. The period runs from notification that the works are complete.

The second is signing generic reservations, various snags pending, which identify neither defects, locations nor periods and are worth little the day they must be enforced. Each reservation identifies the defect, its location and its remedy period.

The third is using rejection as an economic pressure tactic without written technical reasoning, a position that turns against whoever adopts it. Rejection is reasoned technically and in writing.

The fourth is disconnecting acceptance and retention: releasing guarantees with unremedied reservations, or retaining without documented cause beyond what was agreed. Releasing guarantees is tied to the reservations actually being remedied.