Answer

I couldn’t verify any widely accepted credit to Jinadatta Suri for the Jain temples of Parkar/Nagarparkar. The standard descriptions of Nagarparkar’s Jain heritage date the temples mainly to the 12th–15th centuries, and UNESCO describes them as products of the local Jain mercantile culture rather than attributing them to Jinadatta Suri. ( whc.unesco.org)

Explanation

Jinadatta Suri is remembered in Jain tradition as one of the Kharatara-gaccha Dada-gurus, with memorial worship centered on dadabaris and footprints, not as the usual builder of the Nagarparkar temples. In the Nagarparkar area, the best-known named tradition for Gori temple credits the merchant Megha Sa, with later reconsecration by Acharya Merutunga Suri. ( jainpedia.org)

Takeaway

So, based on the sources I found, no clear evidence connects Jinadatta Suri to the construction of the Nagarparkar temples; the credit there goes mainly to local Jain patrons and later acharyas. ( whc.unesco.org)