...Stable, Low-Risk Business Model: Skipton Building Society's (SBS's) ratings reflect its low-risk business model, concentrated in UK mortgage lending and estate agency services. The latter diversifies earnings through a higher share of fee income than that of peers. However, SBS's business remains concentrated in the UK residential housing market. The Viability Rating (VR) balances the building society's healthy asset quality and capitalisation with a modest franchise, limited pricing power and high exposure to UK residential real estate. The Long-Term Issuer Default Rating (IDR) is one notch above the VR, reflecting the society's ability to meet total resolution buffer requirements without senior preferred debt (senior unsecured debt under Fitch Ratings' Bank Rating Criteria). Concentration in Mortgages: SBS's risk profile is commensurate with its business model. Loans are largely restricted to residential mortgage lending, as defined by the UK's Building Societies Act, although the society...