Santa Maria della Provvidenza ai Due Colli is a deconsecrated later 20th century public chapel at Via Badesi 31, which is in a suburban locality called Due Colli. This is part of the Borghesiana suburban district.
The dedication is to the Blessed Virgin Mary, under her title of "Our Lady of Providence".
The neighbourhood arose from illegally sub-divided farmland which became an unplanned suburb in the Sixties. There was a lot of this sort of thing in the locality at the time. In response, the parish of Santa Maria della Fiducia opened several chapels-of-ease of which this was one.
The edifice was an inadequate little shack, and so was replaced by a more substantial prefab on a different site in about 2017. This is Santa Maria Consolata ai Due Colli. The original building was still there in 2018.
The former chapel is a shack in light grey concrete blocks with a flat roof, which is not easy to find. It is opposite the junction with Via Banari. Look for a green curlicued metal gate. There used to be a wooden cross standing in the little yard behind, but presumably this has been removed
The edifice looks as if it was built by amateurs, and must be a candidate for the worst free-standing Catholic place of worship to exist in Rome.