This page lists every known solution for the clue “Building Add-On” in Crossword Challenge. Because this clue can appear in different puzzles (levels) with different required answers, we first list all the answers, then show which one appears in each puzzle below.
Building Add-On Crossword Challenge Answers (All Variants)
Annex
If more than one answer is listed, open your puzzle page below to confirm the one used there.
All Known Answers for Building Add-On Clue
Where This Clue Appears
Last Checked: September 12, 2025