What are some nine-letter rooms in a house?

15 of the 174 rooms in a house in Icillion have exactly 9 letters, for example Courtyard, Vestibule and Cloakroom.

Which nine-letter rooms in a house start with B?

B is the most common first letter here, with 4 names, such as Bakehouse, Belvedere, Breezeway and Brewhouse.

Culture · lists

15 nine-letter rooms in a house in alphabetical order, from “Bakehouse” to “Washhouse”. Each one counts as an answer in Icillion.

15 of the 174 rooms in a house have exactly 9 letters (9%).
Most start with B (4), C (3) and G (1).
Only names of one word are counted, and only their letters: spaces, hyphens and apostrophes are not.

What are some nine-letter rooms in a house?: 15 of the 174 rooms in a house in Icillion have exactly 9 letters, for example Courtyard, Vestibule and Cloakroom.
Which nine-letter rooms in a house start with B?: B is the most common first letter here, with 4 names, such as Bakehouse, Belvedere, Breezeway and Brewhouse.

How deep does your knowledge go?

Seven prompts a day, twenty seconds each. Obvious answers float on the tip of the iceberg; rare ones sink all the way to the trench.