ANSWER:

This is not a masjid but rather a musalla; therefore, no need for Tahiyatul Masjid.

https://islamqa.info/en/170800

Shaikh, At the University I study in (in the west) there is a Muslim prayer space where the Muslim brothers and sisters pray their Salah with jamaat however I’m unsure whether this is regarded as a masjid. What constitutes a masjid? If muslims pray in a particular space can that be regarded as a masjid? And hence one should pray tahiyatul masjid when he goes there.

Prayer, Rulings on mosques |