Spring Hill

Spring Hill sits across two counties, Maury and Williamson, and has grown fast enough in recent years that its own identity is still catching up to its population. The General Motors plant carries a large piece of the local industrial base, while land, retail, and multifamily development have followed the growth outward from the plant and the I-65 corridor.

Split Between Two Counties and Growing Fast

Part of Spring Hill sits in Maury County and part in Williamson County, which means property taxes, zoning, and permitting can differ depending on which side of the line a parcel falls on. That distinction matters for an exchange buyer evaluating land or a development site here, since the same road can carry different rules a few hundred feet apart.

This split has practical consequences beyond paperwork. Response times for permitting or plan review can differ between the two counties, which is worth factoring into any timeline for a build-to-suit or improvement exchange structure.

Population growth has outpaced a lot of Middle Tennessee over the past decade, driven partly by proximity to Nashville and partly by the GM plant's own workforce.

Land and Retail Property Behind the GM Plant

Retail along Main Street and Saturn Parkway has grown steadily to serve the plant's workforce and the broader residential growth around it. Land parcels still transitioning from agricultural use, particularly on the Maury County side, remain some of the more available replacement property options in this market, though pricing has moved up with demand.

• Retail space along Main Street and Saturn Parkway
• Land parcels transitioning from agricultural to residential or commercial use
• Small multifamily near the growing residential corridors
• Industrial and flex space tied to the GM supplier network

None of these categories are unlimited in supply. Investors who wait until the relinquished property closes before starting the search for a Spring Hill replacement are often competing with local buyers who have been watching specific parcels for months.

Improvement Exchanges for Ground-Up Construction

Given how much of Spring Hill's growth is still in the land and ground-up construction stage, an improvement exchange structure comes up more here than in a built-out market. This allows construction costs completed within the 180-day exchange period to count toward the replacement value, but the improvements need to be substantially finished and the property deeded to the investor before that deadline.

Coordinating this structure requires more lead time with the qualified intermediary than a standard purchase, since the exchange agreement needs to account for how construction draws and the eventual transfer of the completed property will be documented.

The 95% Rule on a Thin Inventory Market

Spring Hill's fast growth means pricing on land and retail sites can be harder to pin down weeks in advance, which sometimes pushes investors past the three-property rule and into the 200% rule when casting a wider net. If the combined identified value exceeds twice the START EXCHANGE REVIEW price, the 95% rule becomes the fallback, requiring that 95 percent of the identified value actually close by the deadline.

Working with a broker who tracks pricing across both the Maury and Williamson County portions of Spring Hill helps narrow this uncertainty earlier in the process, rather than discovering a valuation gap close to the identification deadline.

What to Confirm With Your CPA Before Closing

Before identifying a Spring Hill property, particularly a land parcel that straddles the Maury and Williamson county line, confirm with your tax advisor and closing attorney how the property is being valued, what the reinvestment target needs to be to avoid boot, and how the qualified intermediary's assignment paperwork should reflect the specific parcel description. This page describes the general process; it is not tax advice, and every deal should be confirmed with a qualified intermediary and tax professional before funds move.

This confirmation matters just as much on a smaller land purchase as it does on a larger commercial deal, since the same boot and basis rules apply regardless of transaction size.

Common 1031 Exchange Questions

Does it matter which county a Spring Hill replacement property sits in?

It matters for zoning, permitting, and property tax purposes, since Spring Hill spans both Maury and Williamson counties with different local rules. It does not change the federal 1031 exchange requirements, which apply the same way regardless of county line.

What is an improvement exchange and why does it come up so often here?

An improvement exchange lets construction costs during the exchange period count toward the replacement property's value, which fits a market like Spring Hill where a lot of available property is raw land or requires ground-up work rather than a finished building.

How does the GM plant affect industrial and supplier property values here?

Industrial and flex space tied to the plant's supplier network tends to hold steady demand, similar to how a large employer supports real estate in other Tennessee towns. That said, it carries some concentration risk worth evaluating through lease review before identifying the property.

Can I identify a property that is still under construction as my replacement?

Yes, through an improvement exchange, but the property has to be substantially complete and actually deeded to you within the 180-day period. Partially finished construction at the deadline does not satisfy the exchange requirement.

What happens if land pricing changes significantly between identification and closing?

The identification is based on the property itself, not a fixed price, so reasonable price movement between identification and closing does not invalidate the exchange. Significant changes can affect whether the deal still makes financial sense, which is worth discussing with your tax advisor and broker before you proceed to closing.

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