Following Wilson & Wilson v. City Council of Redwood City (2011) 191 Cal.App.4th 1559, this decision holds that an appeal from a judgment denying administrative mandamus review of the county’s issuance of a building permit (allegedly in violation of CEQA) was moot. While the case was pending, the real party in interest had completed the construction of an extension of its self-storage facility which was the subject of the building permit. Unlike Woodward Park Homeowners Assn. v. Garreks, Inc. (2000) 77 Cal.App.4th 880, here the trial court had not issued any order stopping construction or ruling the building permit invalid, so the real party in interest was justified in proceeding with construction. Parkford had waited until construction was nearly done before seeking injunctive relief, which the trial court denied for that reason. Once the building was complete, there was no effective relief that the appellate court could order.