Rosslyn Hill Unitarian Chapel in Hampstead has one of the longest continuous religious histories on the hill, with a congregation gathering there since 1692. The present chapel is a Victorian Gothic Revival building of 1862, later expanded in 1885, but it incorporates earlier structures on the site, including the old brick chapel now used as the hall and manse.
The story begins with Protestant Dissenters who wanted a place of worship outside the Church of England, and Hampstead offered them a relatively sympathetic setting. A meeting place was registered on Rosslyn Hill in 1691, and tradition says the first meeting house was built in 1692 by Isaac Honywood, near or on the site of his home and adjoining farm buildings.
That first simple wooden structure was replaced by a new chapel in 1736, then rebuilt again in brick in 1828 when the earlier building became unsafe. The site therefore reflects a long sequence of adaptation rather than a single build date.
 
Interesting facts...
Perhaps one of the most creative chapels
The chapel is especially notable for its stained glass and memorials. Its windows include work associated with William Morris, Edward Burne-Jones, and Henry Holiday, and it also contains John Flaxman reliefs and plaques to former congregants such as Helen Allingham.
Because of its acoustics, the chapel has also become a popular recording venue. That combination of heritage, art, and sound has helped preserve its reputation well beyond Hampstead.
Art and music!