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Strategy

Building Your Replacement Property With Exchange Dollars

5 min read

By 1031Property Research TeamLast updated

Researched against current IRS guidance and reviewed before publication. Educational information only — not tax, legal, or investment advice. See our disclosures.

Sometimes the right replacement property does not exist yet. The land does, or a building that needs serious work does, but the finished asset you actually want is a construction project away.

An improvement exchange, also called a build to suit or construction exchange, lets you spend exchange proceeds on that construction and still defer the gain. It is legitimate, well established and considerably more demanding than an ordinary exchange.

What is an improvement 1031 exchange?

An exchange in which part of the proceeds pays for improvements to the replacement property before you take title to it.

The difficulty is a basic rule. Improvements you make to property you already own do not count as replacement property. Once title is yours, money spent on construction is simply spending, not exchanging. So the replacement property has to be held by someone else while the work happens.

That someone is an Exchange Accommodation Titleholder, usually affiliated with your Qualified Intermediary. They take title, your exchange funds pay for construction under their ownership, and when the work is done, or the deadline arrives, title transfers to you with the improvements counted as part of what you acquired.

Why does the 180 day clock matter so much here?

Because only improvements actually in place by the time you receive the property count toward your replacement value.

The ordinary rules still apply: 45 days to identify, 180 days to complete, both from the day your relinquished property closes. Anything built after you take title, or still unfinished and unpaid when the property transfers, does not count. Money sitting in escrow for work that has not happened is not replacement property.

That turns construction timing into a tax question. A project that runs three weeks late does not merely inconvenience you. It can leave a large portion of the proceeds unspent on qualifying property, and the shortfall becomes boot.

How do you identify property that does not exist yet?

You describe what will be built, with as much specificity as you reasonably can. Plans, specifications and an estimate of the value of the land plus improvements.

If what is actually completed by day 180 differs substantially from what you identified, the identification can be challenged. So identify realistically. It is safer to describe a smaller, achievable project that you complete fully than an ambitious one that is half finished.

Can you build on land you already own?

Generally not through this route. The safe harbour for these arrangements does not permit the accommodator to hold property that you owned during a lookback period and simply improve it for you, because that looks like spending exchange money on your own asset.

There are narrower structures involving leasehold improvements on land owned by a related party, but they are complicated and fact specific. If your plan involves land already in your family, that is a conversation to have with a specialist before anything is signed.

What does a realistic improvement exchange look like?

Most successful ones share three features.

  • Modest, well scoped work. Renovation of an existing building, tenant improvements, a straightforward addition. Ground up construction of a large building inside 180 days is rare and risky.
  • Contractors engaged before the sale closes. Permits, bids and schedules all sorted in advance, so construction starts almost immediately after the accommodator takes title.
  • Value matched deliberately. The land plus completed work, measured at transfer, equals or exceeds what you sold. Anything short is boot.

What does it cost?

More than a standard delayed exchange. Accommodator fees for construction arrangements typically run into the thousands or low tens of thousands, plus entity costs, construction loan complications if financing is involved, and legal work. Lenders are often unenthusiastic about lending to an accommodation titleholder, which can shape the whole structure.

Against a large deferred gain, the cost is frequently justified. Against a small one, it may not be.

When is it the right tool?

When the replacement asset you want genuinely requires work, the work is achievable inside the window, and there is no ready made alternative that serves the same purpose.

When it is the wrong tool is just as clear. If the plan depends on a construction schedule that has no slack, if permits are uncertain, or if the value only works when everything goes right, consider buying a finished property instead and doing the improvements after the exchange with other funds.

What happens if construction is not finished by day 180?

Only the value actually in place when the property transfers to you counts. The unfinished part does not.

Suppose you sold for 1.5 million dollars and planned to buy land for 600,000 dollars and build 900,000 dollars of improvements. If only 500,000 dollars of work is complete when title transfers on day 180, your replacement property is worth 1.1 million, not 1.5 million. The 400,000 dollar shortfall is boot, and boot on a long held property is typically taxed against depreciation recapture first.

Any exchange money not yet spent at that point is returned to you, and that is taxable too. There is no mechanism to leave funds with the accommodator for work that will finish later.

This is why experienced investors identify generously, schedule conservatively, and often split the plan: the improvements that can realistically be finished inside the window go into the exchange, and anything longer term is funded later with ordinary money after the exchange closes.

Can you combine an improvement exchange with other replacement property?

Yes. You can identify an improvement project alongside a finished property or a Delaware Statutory Trust interest, provided the total identification stays within the rules you have chosen.

That combination can reduce risk. If the construction runs slow, the finished property or trust interest absorbs part of the proceeds, so less value depends on the building schedule. It also gives you a fallback if the project stalls on permits.

What to do first

Talk to an intermediary that runs construction exchanges regularly, and to your contractor, before you accept an offer on the property you are selling. Build the timeline backwards from day 180 and leave margin. The single most common failure is optimism about construction schedules.

Nothing here is tax, legal or investment advice. Rules are technical and depend on your circumstances. Confirm your plan with your CPA, attorney and Qualified Intermediary before you act.

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This article is educational and not tax, legal, or investment advice. 1031 exchanges are complex — consult your own CPA and attorney. DST and fund offerings are securities available to accredited investors only; all examples are illustrative.