The Greek Magical Papyri features a ritual to Zeus-Helios which can be used to consecrate anything.
Place your hands on the sacred structure and recite these words
I invoke you, the greatest god, eternal lord, world ruler, who are over the world and under the world, mighty ruler of the sea, rising at dawn, shining from the east for the whole world, setting in the west. Come to me, you who rises from the four winds, joyous Agathos Daimon, for whom heaven has become the processional way. I call upon your holy and great and hidden names which you rejoice to hear. The earth flourished when you shone forth; the plants became fruitful when you laughed; the animals begat their young when you permitted. Give glory and honor and favor and fortune and power to this temple which I consecrate today for the honor of (God’s name here).
I invoke you, the greatest in heaven, ΗΙ ΛΑΝΧΥΧ ΑΚΑΡΗΝ ΒΑΛ ΜΙΣΘΡΗΝ ΜΑΡΤΑ ΜΑΘΑΘ ΛΑΙΛΑΜ ΜΟΥΣΟΥΘΙ ΣΙΕΘΩ ΒΑΘΑΒΑΘΙ ΙΑΤΜΩΝ ΑΛΕΙ ΙΑΒΑΘ ΑΒΑΩΘ ΣΑΒΑΩΘ ΑΔΩΝΑΙ, the great god, ΟΡΣΕΝΟΦΡΗ ΟΡΓΕΑΤΗΣ ΤΟΘΟΡΝΑΤΗΣΑ ΚΡΙΘΙ ΒΙΩΘΙ ΙΑΔΜΩ ΙΑΤΜΩΜΙ ΜΕΘΙΗΙ ΛΟΝΧΟΩ ΑΚΑΡΗ ΒΑΛ ΜΙΝΘΡΗ ΒΑΝΕ ΒΑΙΝΧΧΥΧΧ ΟΥΦΡΙ ΝΟΘΕΟΥΣΙ ΘΡΑΙ ΑΡΣΙΟΥΘ ΕΡΩΝΕΡΘΕΡ, the shining Hēlios, giving light throughout the whole world. You are the great Serpent, leader of all the gods, who control the beginning of Egypt and the end of the whole inhabited world, who mate in the ocean, ΨΟΙ ΦΝΟΥΘΙ ΝΙΝΘΗΡ. You are he who becomes visible each day and sets in the northwest of heaven, and rises in the southeast.
In the first hour you have the form of a cat; your name is ΦΑΡΑΚΟΥΝΗΘ (PHARAKŪNĒTH).
Give glory and favor to this temple.
In the second hour you have the form of a dog; your name is ΣΟΥΦΙ (SŪPHI).
Give strength and honor to this temple to (god’s name here)
In the third hour you have the form of a serpent; your name is ΑΜΕΚΡΑΝΕΒΕΧΕΟ ΘΩΥΘ (AMEKRANEBEKHEO THŌUTH).
Give honor to this temple dedicated to (god’s name here)
In the fourth hour you have the form of a scarab; your name is ΣΕΝΘΕΝΙΨ (SENTHENIPS).
Mightily strengthen this temple for that which it is consecrated.
In the fifth hour you have the form of a donkey; your name is ΕΝΦΑΝΧΟΥΦ (ENPHANKŪPH).
Give strength and courage and power to this temple
In the sixth hour you have the form of a lion; your name is BAI SOLBAI, the ruler of time.
Give success to this temple and glorious victory.
In the seventh hour you have the form of a goat; your name is ŪMESTHŌTH.
Give sexual charm to this temple.
In the eighth hour you have the form of a bull; your name is DIATIPHĒ, who becomes visible everywhere.
Let all things done by the use of this temple be accomplished.
In the ninth hour you have the form of a falcon; your name is PHĒŪS PHŌŪTH, the lotus emerged from the abyss.
Give success and good luck to this temple
In the tenth hour you have the form of a baboon; your name is BESBYKI.
Give power and wisdom in all things to the god (god’s nam here) for whom this temple is consecrated.
In the eleventh hour you have the form of an ibis; your name is ΜΟΥ ΡΩΦ (MŪ RŌPH).
Protect this great temple rom this present day for all time.
In the twelfth hour you have the form of a crocodile; your name is ΑΕΡΘΟΗ (AERTHOĒ).
Give the greatest protection to this temple
You who have set at evening as an old man, who are over the world and under the world, mighty ruler of the sea, hear my voice in this night, in these holy hours, and let all things done by this charm be brought to fulfillment, and especially for the need for which I consecrate it, for the sake of NN. Please, lord KMĒPH LŪTHEŪTH ORPHOIKHE ORTILIBEKHŪKH IERKHE RŪM IPERITAŌ YAI, I conjure earth and heaven and light and darkness and the great god who created all, SARŪSIN, you, Agathon Daimonion the Helper, to consecrate this place as a temple for (god’s name here).”
When you complete the consecration repeat
“The one Zeus is Serapis.”
Betz, Hans Dieter. The Greek Magical Papyri in Translation Including the Demotic Spells. Chicago: University of Chicago Press, 1992.
Classicalpolytheism. “Places of Worship.” Classical Polytheism. June 24, 2018. Accessed June 27, 2018. https://classicalpolytheism.wordpress.com/2018/06/24/temples-and-sanctuaries/.
Polyphanes. “Consecration of the Twelve Faces of Helios.” The Digital Ambler. January 09, 2018. Accessed June 27, 2018. https://digitalambler.com/2015/08/26/consecration-of-the-twelve-faces-of-helios/.