such holders, as well as the Local Authority [Cohoes], shall have the right to proceed against the PHA by action at law or suit in equity.
(B) Nothing in this Contract contained shall be construed as creating or justifying any claim against the PHA by any third party other than as provided in subsection (A) of this Sec. 510.
On May 27, 1960, Cohoes awarded the construction contract for the housing project to plaintiff as general contractor. During construction, unforeseen design and engineering problems arose which caused plaintiff to incur substantial additional costs for changes and delays. Plaintiff contends that the necessity of redesign of the project led the PHA to assume effective control of the construction, in derogation of Cohoes’ authority over the project. In spite of the problems encountered, plaintiff completed the project to the satisfaction of Cohoes and the PHA and Cohoes took possession of the two segments of the project in December 1961 and September 1962.
Plaintiff filed a claim with Cohoes for payment of the additional costs arising from the construction changes, but Cohoes refused to pay the claim. On April 5, 1963, plaintiff commenced an action against Co-hoes in New York State Supreme Court for the additional costs ($250,695.06) and for retainages owed under the original construction contract ($78,124.95). On July 18, 1967, Cohoes’ answer in that action was stricken for failure to comply with several discovery orders of the Court, and judgment for plaintiff was entered in the amount of $371,512.51 (the above sums plus interest). The entry of the default judgment has been upheld on appeal. Ippolito-Lutz, Inc. v. Cohoes Housing Authority, 48 A.D.2d 1018, 373 N.Y.S.2d 335 (3d Dep’t 1975), leave to appeal denied, 38 N.Y.2d 705, 381 N.Y.S.2d 1025, 343 N.E.2d 774 (1975), cert. denied, 425 U.S. 913, 96 S.Ct. 1510, 47 L.Ed.2d 763 (1976).
Plaintiff has been unable to collect its judgment against Cohoes, because the latter’s real property is exempt from execution under state law and its rents, other income, and other assets are subject to a prior lien in favor of the bondholders. After several years of negotiations with HUD and Cohoes about payment of its claim, plaintiff commenced this action against the Secretary on December 21, 1977.
Cohoes has not submitted, and consequently HUD has not approved, a final Actual Development Cost budget under the ACC. The last Development Cost Budget submitted and approved was in the amount of $2,135,132, of which $2,062,000 has been advanced to Cohoes. Thus, a balance of $73,132 remains approved but unadvanced, and HUD will advance this sum to Cohoes upon application showing a need for it to pay approved costs of the project. Although Cohoes has neither applied for a final advance under the last approved budget nor submitted a final budget seeking funds necessary to pay plaintiff’s claims, plaintiff contends that HUD has informally indicated that it would refuse to approve and to advance funds sufficient to pay plaintiff’s claims in full, even if such application were made by Cohoes.
In this action, plaintiff purports to state two causes of action against the Secretary. In the first, plaintiff alleges that Cohoes was merely the alter ego of HUD, used by HUD to effect its social and political purposes. It further alleges that the failure to pay plaintiff either the balance due on the construction contract and the additional costs incurred in construction, or the amount of the judgment entered in the prior suit for such sums, has resulted in the unjust enrichment of both Cohoes and HUD. For its second purported cause of action, plaintiff alleges that it is a creditor third-party beneficiary of the ACC entered into by Cohoes and PHA, and specifically of PHA’s promise therein to loan funds sufficient to pay the total development cost of the Cohoes project. It further alleges that its judgment against Cohoes is a part of the project’s cost that HUD is obligated to fund. On both causes of action, plaintiff demands judgment against the Secretary in the amount of the earlier judgment, $371,-512.51, plus interest.