Regional road 116 between Siuntio Church Village and neighbouring city of Lohja runs east of Suitia Manor.

[1] Suitia Manor together with St. Peter's Church builds a Built cultural heritage site of national significance and therefore the area is protected by law.

In this document Björn Ragvaldsson Stienkors, justice of Raseborg judicial district and overseer of Häme Castle, is named as the owner of Suitia.

[7] Under the ownership of the Fleming family the manor was named Svidja which then turned into Suitia in the mouths of the Finnish-speaking people.

[7] Baron Klaus Fleming, member of the privy council and a trustee of kings John III and Sigismund Vasa, lived almost his whole life at Suitia.

The female line of the family continued as the ladies of the estate all the way to the year 1730 when Suitia was sold to marshal Carl Henrik Wrangel.

Among these objects survives a medieval baptismal font which was donated to the church by Hebbla Siggesdotter Sparre, widow to the Councillor of State Erik Fleming, in 1550.

Gustaf Adolf Reuterholm died childless in 1813 and in his will he ordered the family burial chamber and chapel in St. Peter's Church in Siuntio to be emptied and the coffins and valuables to be moved to Strängnäs Cathedral because Sweden had lost the area of Finland to Russian Empire in the Finnish War.

[2][7][9][10]In 1822 Suitia Manor was briefly owned by Claes Robert Favorin who sold it to lieutenant Karl Ludvig von Zansen.

[1][7] Baron Wrede af Elimä was driven into economical difficulties and after he declared bankruptcy in 1933 the State of Finland redeemed Suitia Manor with its lands.

After the redeeming of Suitia the Ministry of Social Affairs let the association for the invalids of Finnish Civil War use the manor for rehabilitation.

In 2015 Suitia was sold to brothers Gustav and Henrik Rehnberg, who owned a nearby Gårdskulla estate, and known businessman Antti Herlin for 11.7 million euros.

The owner of Suitia at the time was baron August Wrede af Elimä who wanted the main building to resemble late gothic and medieval style.

Baron Wrede af Elimä designed the alterations himself and wanted the main building be a reference to the noble family Felming's time at Suitia.

Carpenter Carl Edward Österblom carved coats of arms of the former owner families on the wooden wall panels of the knight hall.