Because Code § 506(a) states that “[a]n allowed claim of a creditor secured by a lien on property in which the estate has an interest … is a secured claim to the extent of the value of such creditor’s interest in the estate’s interest in such property,” a claim may be valued under § 506(a) only where the claim has been allowed. As a result, a Chapter 13 debtor cannot value a claim under § 506(a) where the creditor has not filed a proof of claim and the debtor has not filed a proof of claim on behalf of the creditor as allowed under Code § 501(c). See In re King, 165 B.R. 296 (Bankr. M.D. Fla. 1994); In re Callahan, 251 B.R. 170 (Bankr….

