Building society mortgage lending fell by £233m between October and November, according to Building Societies Association figures.
Net advances dropped to £534m in November from £767m in October. When seasonally adjusted, the fall is less significant. Net advances are down £623m in November from £684m in October.
BSA director general Adrian Coles says: "It is important not to read too much into a single month's figures, particularly as the recent base rate cuts should help to boost consumer confidence."