Transaction profile Issuer Elstree 2025-2 1ST PLC Collateral type RMBS buy-to-let and owner-occupied Domicile of assets U.K. Seller West One Secured Loans Ltd. Servicer West One Secured Loans Ltd. Counterparties National Westminster Bank PLC, Citibank N.A., London Branch, and Lloyds Bank Corporate Markets PLC Capital structure Class Prelim. rating* Prelim. class size (%) Credit enhancement (%) Coupon (%) Step-up coupon (%) Step-up date Legal final maturity A AAA (sf) 90.00 10.05 Compounded daily SONIA + margin Compounded daily SONIA + margin October 2029 October 2065 B-Dfrd AA (sf) 4.75 5.30 Compounded daily SONIA + margin Compounded daily SONIA + margin October 2029 October 2065 C-Dfrd A+ (sf) 2.50 2.80 Compounded daily SONIA + margin Compounded daily SONIA + margin October
