In July of 1992, James Harris and Helen Harris were divorced in Henry County pursuant to a final decree which incorporated a settlement agreement providing that she “shall be entitled” to the marital home in Henry County and that he “shall be entitled” to property on Tybee Island in Chatham County. Legal descriptions of both properties were attached and incorporated by reference. The settlement agreement further provided that Mr. Harris was responsible for a *660loan from Eastern Financial Federal Credit Union which was secured by a deed to secure debt on the marital home, and that he was obligated to “take whatever actions he can” to have Ms. Harris’ name removed as a co-debtor on the loan and to remove the security deed encumbering title to the Henry County property. Finally, the settlement agreement provided that Ms. Harris would “have a secured interest in the Tybee Island property until such time as the debt to Eastern Financial Federal Credit Union is extinguished or her name and her property are removed from said loan.”
In August of 1992, Mr. Harris married Jennifer Barks. On three occasions thereafter, the Superior Court of Henry County found Mr. Harris in contempt of the divorce decree, due to his failure to pay the loan from the credit union and to have the security deed removed from the marital home. In October of 1993, the first contempt order provided that Mr. Harris “shall . . . purge himself by either placing the Tybee Island real estate up for sale or having the Eastern Credit Union lien removed from . . . Helen Harris’s property within fourteen (14) days.” Mr. Harris did not comply with this order. In March of 1994, the second contempt order required Mr. Harris to convey the Tybee Island property to Ms. Harris pursuant to a deed to secure debt and to have that security deed recorded. Again, he did not comply. Instead, in April of 1994, Mr. Harris filed the divorce decree of record in Chatham County and then conveyed the Tybee Island property to Ms. Barks. In September of 1994, the Superior Court of Henry County entered its third contempt order, authorizing Ms. Harris to sell the Tybee Island property and directing that the proceeds be used to pay the expenses of the sale and Mr. Harris’ arrearages under the divorce decree, with the balance deposited into the registry of court until further order.
In May of 1995, Ms. Harris contracted to sell the Tybee Island property to U. S. Development Corporation (Corporation). Because of the controversy over the title to the property, the Corporation filed suit in the Superior Court of Chatham County, seeking specific performance of Ms. Harris’ contract. After discovery, the Corporation filed a motion for summary judgment on its specific performance claim, and Mr. Harris and Ms. Barks filed a cross-motion. The trial court granted summary judgment in favor of the Corporation, and denied Mr. Harris’ and Ms. Barks’ cross-motion. Mr. Harris and Ms. Barks appeal, enumerating as error the grant of the Corporation’s motion and the denial of their cross-motion.
The language of the settlement agreement incorporated into the divorce decree expresses the intent to convey title to the Tybee Island property to Mr. Harris and title to the Henry County property to Ms. Harris. See Elrod v. Elrod, 231 Ga. 222, 223 (1) (200 SE2d 885) (1973); Richardson v. Park Ave. Bank, 173 Ga. App. 43 (325 SE2d *661455) (1984). Compare Newborn v. Clay, 263 Ga. 622, 623-624 (436 SE2d 654) (1993) (divorce decree failed to describe and dispose of property and, thus, did not affect title). Therefore, no genuine issue of material fact remains as to Mr. Harris’ acquisition of title to the Tybee Island property in 1992. Under its unambiguous terms, the settlement agreement also granted Ms. Harris a special or equitable lien on the Tybee Island property. Jones v. Jones, 264 Ga. 169 (441 SE2d 745) (1994); Routon v. Woodbury Banking Co., 209 Ga. 706, 707 (75 SE2d 561) (1953). Although such a lien may not “provide for the transfer of possession or automatic forfeiture of the property encumbered,” it does place “upon the property an encumbrance so that it may be proceeded against, if necessary, in a subsequent equity action. [Cits.]” Jones v. Jones, supra at 170. Accordingly, resolution of this case is dependent upon whether the third contempt proceeding against Mr. Harris was an equitable action wherein the Superior Court of Henry County was authorized to permit Ms. Harris to foreclose the lien on the Tybee Island property created by the divorce decree and to sell the property at a non-judicial private sale.
The contempt action was merely ancillary to the divorce action. Phillips v. Brown, 263 Ga. 50, 51 (2) (426 SE2d 866) (1993). Thus, the only purpose of the proceeding was to place the parties in as nearly the same position as they would have occupied had Mr. Harris obeyed the divorce decree from the outset. Accordingly, in ruling on the motion for contempt, the trial court certainly had the authority to enforce the terms of the divorce decree against Mr. Harris, but it clearly lacked the authority to grant any additional substantive relief which was not within the scope of that decree. See George v. George, 232 Ga. 389, 392 (4) (207 SE2d 26) (1974). The divorce decree awarded title to the Tybee Island property to Mr. Harris and provided for Ms. Harris to have a security interest therein until the secured debt on the Henry County property was satisfied. Nothing in that judgment of divorce addressed Mr. Harris’ default on his underlying financial obligation or Ms. Harris’ enforcement of her security interest. Therefore, the trial court was authorized to use its contempt power to compel Mr. Harris to take all action necessary to convey to Ms. Harris the security interest awarded Ms. Harris in the Tybee Island property, but it was not authorized to permit Ms. Harris to foreclose on the property. The trial court’s authority to enforce the divorce decree’s initial award of a security interest to Ms. Harris is an entirely separate and distinct issue from its authority to order foreclosure on the property in the event of Mr. Harris’ subsequent default.
The Superior Court of Henry County would have jurisdiction to address the foreclosure of property located in Chatham County only in the context of an equitable foreclosure action. Kitchens v. Molton, *662172 Ga. 690-691 (4, 5) (158 SE 570) (1931). Such an action is an entirely separate proceeding. See OCGA § 44-14-49; DeLay v. Lati-mer, 155 Ga. 463 (1) (117 SE 446) (1923). It cannot be Instituted by an ancillary motion for contempt in the underlying divorce case. See Opatut v. Guest Pond Club, 254 Ga. 258 (1) (327 SE2d 487) (1985). Moreover, in an equitable foreclosure action, a trial court would not be authorized to grant Ms. Harris the power to sell the property herself, since it “should not. . . appoint persons who have an interest in the suit or property.” 59A CJS, Mortgages, § 852. Instead, it would only be authorized to appoint a disinterested party, such as a receiver or the sheriff. See Kurfees v. Davis, 178 Ga. 429 (173 SE 157) (1934); OCGA § 15-16-10 (a) (1). In addition, an equitable foreclosure action should not result in the grant of the authority to conduct a private sale of the property, since “a mortgage foreclosure sale ordinarily should be public in character.” 59A CJS, Mortgages, § 855. Accordingly, in the context of the contempt action, the Superior Court of Henry County was not authorized to permit Ms. Harris to sell the Tybee Island property to the Corporation pursuant to a nonjudicial private sale.
Mr. Harris did not appeal the judgment in the contempt action. However, even assuming that that judgment could be res judicata as to him, it would not be res judicata as to Ms. Barks, who was not a party to the contempt action. Thus, the unappealed judgment in the contempt action does not affect Ms. Barks’ record title to the Tybee Island property. Moreover, insofar as it purported to authorize a private foreclosure sale of the Tybee Island property by Ms. Harris herself, the contempt judgment is invalid because “[i]f the sale is conducted in a manner which it would not have been within the power of the court to authorize, such sale is void.” 59A CJS, Mortgages, § 855. Specific performance is an available remedy only as to enforceable agreements. See Moody v. Mendenhall, 238 Ga. 689, 692 (6) (234 SE2d 905) (1977).
Thus, any issue as to whether the conveyance from Mr. Harris to Ms. Barks is fraudulent is moot. Construing the undisputed evidence of record most favorably for the Corporation, it could not receive viable title to the Tybee Island property from Ms. Harris. Compare Smith v. Pippins, 207 Ga. 262, 269 (1) (a) (61 SE2d 138) (1950). The divorce decree granted a security interest to Ms. Harris only until such time as the underlying debt secured by the Henry County property was extinguished. It is undisputed that that debt was satisfied on July 18, 1996. Therefore, Ms. Harris has no remaining interest in the Tybee Island property. Accordingly, the trial court erred not only in granting summary judgment in favor of the Corporation on the specific performance claim, but also in failing to grant summary judgment in favor of Mr. Harris and Ms. Barks as to that claim.
*663 Judgment reversed.
All the Justices concur, except Sears, J, who dissents.