CONSOLIDATION AND BASIS OF PRESENTATION	12 Months Ended
Dec. 31, 2019
CONSOLIDATION AND BASIS OF PRESENTATION
CONSOLIDATION AND BASIS OF PRESENTATION	1. CONSOLIDATION AND BASIS OF PRESENTATION Organization and Formation UDR, Inc. (“UDR,” the “Company,” “we,” or “our”) is a self-administered real estate investment trust, or REIT, that owns, operates, acquires, renovates, develops, redevelops, and manages apartment communities generally in high barrier-to-entry markets located in the United States. The high barrier-to-entry markets are characterized by limited land for new construction, difficult and lengthy entitlement process, expensive single-family home prices and significant employment growth potential. At December 31, 2019, our consolidated apartment portfolio consisted of 148 consolidated communities located in 20 markets consisting of 47,010 apartment homes. In addition, the Company has an ownership interest in 5,268 completed or to-be-completed apartment homes through unconsolidated joint ventures or partnerships, including 2,138 apartment homes owned by entities in which we hold preferred equity investments. Basis of Presentation The accompanying consolidated financial statements of UDR include its wholly-owned and/or controlled subsidiaries (see the “Consolidated Joint Ventures” section of Note 5, Joint Ventures and Partnerships, for further discussion). All significant intercompany accounts and transactions have been eliminated in consolidation. The accompanying consolidated financial statements include the accounts of UDR and its subsidiaries, including United Dominion Realty, L.P. (the “Operating Partnership” or the “OP”) and UDR Lighthouse DownREIT L.P. (the “DownREIT Partnership”). As of December 31, 2019 and 2018, there were 184.1 million and 183.6 million units, respectively, in the Operating Partnership (“OP Units”) outstanding, of which 176.2 million, or 95.7% and 174.2 million, or 94.9%, respectively, were owned by UDR and 7.9 million, or 4.3% and 9.4 million, or 5.1%, respectively, were owned by outside limited partners. As of December 31, 2019 and 2018, there were 32.4 million units in the DownREIT Partnership (“DownREIT Units”) outstanding, of which 18.4 million, or 56.8% and 17.2 million, or 53.2%, respectively, were owned by UDR (including 13.5 million DownREIT Units, or 41.7% and 13.5 million, or 41.6%, that were held by the Operating Partnership as of December 31, 2019 and 2018, respectively) and 14.0 million, or 43.2% and 15.2 million, or 46.8%, respectively, were owned by outside limited partners. The consolidated financial statements of UDR include the noncontrolling interests of the unitholders in the Operating Partnership and DownREIT Partnership. The Company evaluated subsequent events through the date its financial statements were issued. No significant recognized or non-recognized subsequent events were noted other than those in Note 2, Significant Accounting Policies, Note 3, Real Estate Owned and Note 5, Joint Ventures and Partnerships.

CONSOLIDATION AND BASIS OF PRESENTATION

12 Months Ended

Dec. 31, 2019

CONSOLIDATION AND BASIS OF PRESENTATION

1. CONSOLIDATION AND BASIS OF PRESENTATION

Organization and Formation

UDR, Inc. (“UDR,” the “Company,” “we,” or “our”) is a self-administered real estate investment trust, or REIT, that owns, operates, acquires, renovates, develops, redevelops, and manages apartment communities generally in high barrier-to-entry markets located in the United States. The high barrier-to-entry markets are characterized by limited land for new construction, difficult and lengthy entitlement process, expensive single-family home prices and significant employment growth potential. At December 31, 2019, our consolidated apartment portfolio consisted of 148 consolidated communities located in 20 markets consisting of 47,010 apartment homes. In addition, the Company has an ownership interest in 5,268 completed or to-be-completed apartment homes through unconsolidated joint ventures or partnerships, including 2,138 apartment homes owned by entities in which we hold preferred equity investments.

Basis of Presentation

The accompanying consolidated financial statements of UDR include its wholly-owned and/or controlled subsidiaries (see the “Consolidated Joint Ventures” section of Note 5, Joint Ventures and Partnerships, for further discussion). All significant intercompany accounts and transactions have been eliminated in consolidation.

The accompanying consolidated financial statements include the accounts of UDR and its subsidiaries, including United Dominion Realty, L.P. (the “Operating Partnership” or the “OP”) and UDR Lighthouse DownREIT L.P. (the “DownREIT Partnership”). As of December 31, 2019 and 2018, there were 184.1 million and 183.6 million units, respectively, in the Operating Partnership (“OP Units”) outstanding, of which 176.2 million, or 95.7% and 174.2 million, or 94.9%, respectively, were owned by UDR and 7.9 million, or 4.3% and 9.4 million, or 5.1%, respectively, were owned by outside limited partners. As of December 31, 2019 and 2018, there were 32.4 million units in the DownREIT Partnership (“DownREIT Units”) outstanding, of which 18.4 million, or 56.8% and 17.2 million, or 53.2%, respectively, were owned by UDR (including 13.5 million DownREIT Units, or 41.7% and 13.5 million, or 41.6%, that were held by the Operating Partnership as of December 31, 2019 and 2018, respectively) and 14.0 million, or 43.2% and 15.2 million, or 46.8%, respectively, were owned by outside limited partners. The consolidated financial statements of UDR include the noncontrolling interests of the unitholders in the Operating Partnership and DownREIT Partnership.

The Company evaluated subsequent events through the date its financial statements were issued. No significant recognized or non-recognized subsequent events were noted other than those in Note 2, Significant Accounting Policies, Note 3, Real Estate Owned and Note 5, Joint Ventures and Partnerships.