Most REITs do not own their buildings. They own a partnership that owns the buildings.
That arrangement — the umbrella partnership real estate investment trust, or UPREIT — is one of the more consequential pieces of structural engineering in U.S. real estate. It exists to solve a specific problem, it solves it well, and it creates a set of trade-offs that property owners entering the structure often understand incompletely.
The problem it solves
Consider a family that has owned an apartment building for thirty years. The property has appreciated substantially and has been depreciated to a low basis. A REIT wants to acquire it.
A straightforward sale creates a large, immediate tax bill — capital gains on the appreciation plus depreciation recapture on the deductions taken over three decades. That bill may be large enough that the family simply will not sell, regardless of price. The REIT loses the acquisition, and the owner stays in a concentrated, management-intensive position they may no longer want.
The UPREIT resolves this. Rather than selling, the owner contributes the property to the REIT’s operating partnership in exchange for OP units. Under Section 721 of the Internal Revenue Code, a contribution of property to a partnership in exchange for a partnership interest is generally a nonrecognition event — no immediate tax. The transaction mechanics are covered in the 721 exchange, explained.
The seller obtains diversification, professional management, and liquidity potential without the immediate tax cost. The REIT obtains a property it could not have bought for cash. The structure exists because that trade is valuable to both sides.
How the structure is built
In an UPREIT:
- The REIT is a public or non-traded entity whose shareholders hold its shares.
- The REIT is the general partner of the operating partnership and typically holds a substantial majority of its units.
- The operating partnership holds essentially all of the REIT’s real estate assets and conducts its operations.
- Other limited partners — contributing property owners — hold the remaining OP units.
The economics of an OP unit are designed to parallel a REIT share: distributions per unit generally match the dividend per share, and unit value tracks share value or NAV. What differs is the tax posture and the legal form.
A related structure, the DownREIT, achieves a similar result differently: the REIT owns some properties directly and holds interests in one or more separate partnerships formed for particular contributions. It is used where a single umbrella partnership does not fit the situation.
What an OP unit actually is
This is where holders most often misunderstand their position, so it is worth being precise.
An OP unit is a partnership interest, not a REIT share. The holder is a limited partner in the operating partnership. That has consequences:
Tax reporting. OP unit holders generally receive a Schedule K-1 reporting their share of partnership items, rather than the 1099 a REIT shareholder receives. Depending on the partnership’s activity and states of operation, this can bring multi-state filing obligations.
Conversion is typically available — and typically taxable. OP units are generally convertible or redeemable into REIT shares or cash after a holding period specified in the partnership agreement. Exercising that right is generally a taxable event, which realizes the gain the contribution deferred. The deferral is preserved by not converting.
Voting and governance. Unit holders generally do not vote as shareholders. Governance rights, protective provisions, and any consent rights over sales of the contributed property are set by the partnership agreement, and they vary considerably.
Section 704(c) allocations. Because the contributed property came in with a basis different from its value, the partnership must allocate items relating to that difference back to the contributing partner under Section 704(c). The practical effect is that a contributor’s tax allocations can differ from those of other partners — sometimes producing taxable income without matching cash. This is a genuine and under-explained feature of the structure.
The deferral, and where it ends
The tax outcome depends on what happens next, and the branches matter:
Hold the units. Deferral generally continues.
Convert to REIT shares. Generally a taxable event.
The partnership sells the contributed property. Depending on the arrangement, this can trigger gain allocated to the contributing partner — which is why negotiated lock-up or tax protection agreements are common, obliging the REIT not to sell the contributed property for a period, or to indemnify the contributor if it does. The strength and duration of these protections is a central negotiating point and varies widely.
Hold until death. Under Section 1014, a step-up in basis may apply to assets held at death, potentially eliminating the deferred gain for heirs. This is why holding to step-up is a common planning objective and why the structure appeals to estate-planning-motivated owners.
The critical constraint to understand going in: once property is contributed and OP units are received, a subsequent 1031 exchange of that position is generally not available. Section 1031 applies to real property; a partnership interest is not real property. This is a one-way door. It is often the right door, but it closes behind the owner.
Where DSTs come in
The 721 exchange has become a common second step for Delaware statutory trust investors, and the sequence is worth stating explicitly because it is frequently marketed without its constraints.
A typical path: an investor completes a 1031 exchange into a DST holding institutional real estate. After a period, the sponsor — often affiliated with a REIT — offers the opportunity to contribute the DST’s property into the REIT’s operating partnership under Section 721. The investor receives OP units, moving from a single-property DST position into a diversified REIT portfolio.
The appeal is real: diversification, professional management, and potential access to liquidity through the REIT’s repurchase program rather than waiting for a single property to be sold.
What should be equally clear before entering the sequence:
- The 1031 door closes. After the 721 contribution, further like-kind exchanges of that position are generally unavailable.
- The decision may not be the investor’s alone. Whether and when a 721 transaction occurs is typically determined by the sponsor within the terms of the offering documents. Investors who assume it is an option they control should read those documents carefully.
- Liquidity is programmatic. Access to cash generally runs through the REIT’s repurchase program, which is capped and can be prorated or suspended. It is not equivalent to selling a listed security.
- Valuation shifts to NAV. The position is now valued at the REIT’s NAV, determined through the REIT’s valuation process rather than by reference to a specific building. Most perpetual non-traded REITs used in these transactions are NAV REITs, and their valuation and repurchase mechanics are worth understanding before contributing.
None of these are hidden — they appear in offering documents. They are simply less prominent in the marketing than the diversification benefit, which is why they are worth stating plainly.
Who this structure suits
The UPREIT works well for an owner with a low-basis, highly appreciated property who wants out of active management and into diversification, who values estate planning and intends to hold long term, and who accepts giving up direct control and future 1031 flexibility.
It works poorly for an owner who wants near-term liquidity, who wants to retain control over specific assets, who values preserving 1031 optionality, or who needs simple tax reporting.
Because the structure implicates real property tax rules, partnership allocations, and estate planning simultaneously, entering one is a decision to make with a tax adviser and counsel who have reviewed the specific partnership agreement — particularly its tax protection provisions and its redemption mechanics.
This guide is educational and general; it is not tax, legal, or investment advice. Section 721 and Section 704(c) treatment is fact-specific; consult qualified professionals before contributing property to an operating partnership.
Frequently Asked Questions
What is an UPREIT?
An umbrella partnership real estate investment trust—a structure in which the REIT holds substantially all of its assets through an operating partnership rather than owning them directly. The REIT is the general partner; other partners hold OP units. The structure exists mainly because it lets property owners contribute real estate to the partnership in exchange for units without triggering immediate tax under Section 721.
What are OP units?
Limited partnership interests in the REIT’s operating partnership. They generally track REIT shares economically—receiving distributions comparable to the dividend—and are typically convertible or redeemable into REIT shares or cash after a holding period. They are not REIT shares, and the conversion is generally a taxable event.
Is an UPREIT the same as a 721 exchange?
They are related but distinct. The UPREIT is the structure; the 721 exchange is the transaction—contributing property to the operating partnership in exchange for OP units under Section 721. The UPREIT structure is what makes the 721 contribution possible.
What is the difference between an UPREIT and a DownREIT?
In an UPREIT, the REIT holds essentially all of its assets through a single operating partnership. In a DownREIT, the REIT owns some properties directly and also holds interests in one or more separate partnerships formed for particular contributions. DownREIT structures achieve a similar tax-deferred contribution result through a different arrangement.
When does the tax finally come due?
Deferral generally continues while the OP units are held. Converting units into REIT shares is generally a taxable event, as is a sale by the partnership of the contributed property, subject to the specific arrangement. If units are held until death, a step-up in basis may apply—which is why holding to step-up is a common planning objective in these structures.
Sources
- Internal Revenue Code Section 721 (nonrecognition on contribution of property to a partnership)
- Internal Revenue Code Section 704(c) (allocations with respect to contributed property)
- Internal Revenue Code Section 1031 (exchange of real property held for productive use or investment)
- Internal Revenue Code Section 1014 (basis of property acquired from a decedent)
