ANDERSON, Circuit Judge:

Plaintiffs Jason and Rachelle Lankhorst ("Lankhorst") appeal the district court's grant of summary judgment in favor of Defendant Independent Savings Plan Company ("ISPC"). After careful review of the record, and with the benefit of oral argument, we affirm.

I. BACKGROUND

Lankhorst moved to Orange Park, Florida at the behest of the United States Navy in 2010. Immediately upon moving into their newly-purchased home, Plaintiffs began receiving phone calls from Water Equipment Technologies of Florida, Inc. ("WET"), soliciting the opportunity to pitch the sale of a residential water treatment system. The Plaintiffs eventually acquiesced and a WET salesman visited the home. Pressured by the sales pitch, the Plaintiffs agreed to purchase the treatment system. On the Purchase Agreement, the Plaintiffs indicated that they intended "to seek financing for [the] transaction." The WET salesman told the Plaintiffs that they would qualify for a very low interest rate.

WET installed the treatment system within twenty-four hours of the sale, prior to the finalization of any financing agreement. Following the three-day expiration period of the Purchase Agreement's cancellation right, ISPC delivered the Credit Agreement. At that time, the Plaintiffs discovered the interest rate was actually 17.99%. Plaintiffs effectively had no choice other than to accept the terms of the Credit Agreement.

Plaintiffs alleged that ISPC violated the Truth in Lending Act ("TILA") by failing to disclose examples of minimum payments and the maximum repayment period for this "extension of credit which is secured by the consumer's principal dwelling," 15 U.S.C. § 1637a(a)(9). Plaintiffs also alleged that ISPC failed, in violation of § 1635(a), to properly delay performance to allow the Plaintiffs to rescind the contract, as regulations prohibit services from being performed and material from being delivered until after the rescission period. The district court granted summary judgment in favor of ISPC concluding that the Credit Agreement did not convey a security interest in the Plaintiffs' residence, and thus that there was not a violation of either § 1635(a) or § 1637a(a)(9), both of which depend on there having been a security interest in the residence. Furthermore, the district court concluded that the treatment system was not a fixture, and even if it was, TILA expressly excludes fixtures from the definition of "security interest."

II. DISCUSSION

This Court reviews a grant of summary judgment de novo. Royal Ins. Co. of Am. v. Whitaker Contracting Corp., 242 F.3d 1035, 1040 (11th Cir. 2001). Florida courts consider "whether property [has] annexed to realty [as] a fixture [to be] a question of fact, or a mixed question of law and fact." Cmty. Bank of Homestead v. Barnett Bank of the Keys, 518 So.2d 928, 930 (Fla.Dist.Ct.App.1987).

Lankhorst argues both that the water treatment system is a fixture and that the Credit Agreement created an interest in the residence. ISPC counters that it is not a fixture, and alternatively, even if it is a fixture, it is not a security interest in the residence and thus neither § 1635(a) nor § 1637a(a)(9) applies.

We are skeptical of the district court's conclusion that the treatment system is not a fixture; but, we need not reach that issue. For the sake of this opinion, we assume arguendo that the water treatment system does constitute a fixture under Florida law.

Even if the treatment system constitutes a fixture, Lankhorst must prove that ISPC took a security interest in the residence, as both 15 U.S.C. §§ 1635 & 1637a—those provisions upon which Plaintiffs stake their TILA case—require that the financing be secured by the "principal dwelling." Lankhorst has cited no authority to support the assertion that a security interest in a fixture constitutes a security interest in the real property on which the fixture is installed. Nor has our research uncovered any such case. Florida law is to the contrary. Fla. Stat. § 679.604(3) provides that a party holding a security interest in a fixture may, after default, "remove the collateral from the real property." The security interest in a fixture does not give the party a security interest in the realty on which it is installed. In this case the water treatment equipment can be removed in a manner similar to a hot water heater.

Florida law dictates that the private contract between the two parties be the starting point for determining the extent of a security interest. See Dickason v. Marine Nat. Bank of Naples, N.A., 898 So.2d 1170, 1174 (Fla.Dist.Ct.App.2005) ("We are mindful that a financing statement should not be construed to enlarge the description of the collateral in the security agreement."). The Credit Agreement states that the buyer grants to ISPC "a purchase money security interest in any purchases" made to the account.1 Clearly the "purchase" here is the treatment system, not the residence.2

Lankhorst contends that ¶ 23(j) of the Credit Agreement, dealing with a buyer's failure to pay, establishes that ISPC has taken a security interest in the residence.3 However, the language of this section is couched in terms of a judgment after default. See ¶ 23(j)[2] ("Judgments resulting from an `Event of Default' hereunder and/or from any consensual UCC-1/lien/security interest as described herein, constitute valid enforceable liens against YOUR homestead property and will be paid in full by YOU upon any sale, conveyance or mortgage financing of YOUR homestead property[.]"). In other words, it is not the Credit Agreement or UCC financing statement itself, but the judgment against the debtor, that gives rise to the potential lien against the home. The Florida statute converts a judgment to a lien against real property independent of this (or any) contract. Fla. Stat. § 55.10(1) ("A judgment, order, or decree becomes a lien on real property in any county when a certified copy of it is recorded in the official records or judgment lien record of the county, whichever is maintained at the time of recordation. . . ."). So, this contractual provision stating that a judgment constitutes a lien against the homestead adds nothing that a judgment does not, by itself, provide.4 Moreover, the very language of ¶ 23(j)[2] indicates that the lien "will be paid in full by YOU upon any sale, conveyance or mortgage financing of YOUR homestead property." In other words, the judgment lien contemplated by ¶ 23(j)[2] is neither a security interest nor is it the usual kind of judgment lien that can be collected by judicial enforcement; rather, it provides for collection upon voluntary sale or mortgage financing of the homestead property.5

At most, the "Failure to Pay" provision of the Credit Agreement might be deemed to create a security interest in the proceeds of a voluntary sale or refinancing of the residence. Both the language of ¶ 23(j)[2] discussed above and the first sentence of ¶ 23 indicate that it is the proceeds of voluntary sale or mortgage refinancing to which ISPC looks for its security. That first sentence provides: "If YOU do not pay on time; . . . [or] sell or convey the real property on which the Purchased equipment is installed; . . . then YOU will be deemed in default." However, this does not help Lankhorst because Regulation Z excludes proceeds from the definition of "security interest" in 15 U.S.C. §§ 1635 & 1637a. 12 C.F.R. § 1026.2(a)(1), (a)(25) ("Security interest means an interest in property that secures performance of a consumer credit obligation and that is recognized by state or Federal law. It does not include incidental interests such as interests in proceeds, accessions, additions, fixtures, insurance proceeds (whether or not the creditor is a loss payee or beneficiary), premium rebates, or interests in after-acquired property.").

The Court recognizes that this transaction between Lankhorst, WET, and ISPC may be subject to the sort of abuse of consumers that Congress sought to prevent through TILA. If so, rather than stretch the statutory language or the language of the written agreements entered into by the parties, the appropriate remedy is to refer the matter to the proper agency for study and to ascertain if modification of 12 C.F.R. § 1026.2(a)(25) is desirable.

III. CONCLUSION

ISPC did not take the requisite interest in the Plaintiffs' primary residence to trigger the TILA protections on which Lankhorst relies. Therefore, the district court did not err in granting summary judgment to the Defendant.

AFFIRMED.