The lender, part of the wider Yorkshire Building Society group, has reduced the SVR from 5.79% to 5.65%.
The change does not affect fellow brands Barnsley Building Society, Norwich & Peterborough and Yorkshire Building Society. The SVR at those three brands remains at 4.99%.
The SVR for mortgages taken out through intermediary arm Accord also remains the same at 5.99%.
This decision follows a move by Nationwide in October to cut the SVR for more than 7,800 former Dunfermline Building Society borrowers. In that case customers moved from the Dunfermline SVR of 5.19% over to Nationwide’s standard mortgage rate of 3.99%.