The First of Three Tucson Gym Sites Closed at $2.82 Million
Tenet Equity paid $2,819,391 for 3.41 acres at Houghton Town Center — the pad for a 40,579-square-foot Mountainside Fitness club on Old Vail Road.
Mountainside Fitness announced three Tucson-area clubs in January. The first parcel has now changed hands, and the name on the deed is not the name that will be on the building.
When Mountainside Fitness said in January that it would open three clubs across the Tucson metro at once, the open question was which one would actually go vertical first. The answer is the southeast side. On July 17, 2026, 3.41 acres inside Houghton Town Center changed hands for $2,819,391, the building permit has since been issued, and groundwork is under way at 10084 E. Old Vail Road, near Houghton Road. The other two sites — the Oro Valley Marketplace conversion and the Marana standalone at Twin Peaks and Interstate 10 — have not published a comparable milestone.
- $2,819,391
- Recorded price for the Old Vail Road pad
- 3.41 acres
- About 148,400 square feet, lots 44–46 and part of 47
- $19.00 / sq ft
- Land price, or roughly $826,800 an acre
- 40,579 sq ft
- The permitted building, up from the 40,000 announced
The Name on the Deed Is Not the Name on the Building
The buyer was Tenet Equity Funding SPE II LLC. The seller was Houghton Developers LLC, an affiliate of Diamond Ventures. Mountainside Fitness — the tenant, the operator, the sign that will eventually go up — is not a party to the land purchase at all.
That is worth understanding rather than skipping past, because it is how most freestanding retail on the edges of this metro actually gets built. An operator that wants a purpose-built 40,000-square-foot building has three ways to get one: buy the dirt and build it, lease a building someone else builds, or bring in a capital partner who buys the dirt, builds to the operator's drawings, and leases it back on a long term. The third is the common path, and the tell is right there in the buyer's name — an "SPE" is a single-purpose entity, a company formed to hold one asset and nothing else. It exists so that this parcel, this building and this lease sit in their own box, separate from everything else the funder owns.
The practical consequence for anyone watching the corner: the club's timeline is now governed by a construction contract and a lease, not by a retailer's own capital budget. Deals structured this way tend to move on schedule once the dirt closes, because the money is already committed and the rent clock has an agreed start.
What $19 a Foot Says About That Corridor
The price works out to about $19.00 per square foot of land, or roughly $826,800 an acre, for lots 44, 45, 46 and a portion of lot 47. That is a pad-site number rather than a raw-land number, and the difference is most of the value: a lot inside a platted, master-planned center arrives with the entitlements, the shared access drives, the retention basins and the utility stubs already handled. Raw acreage on the far southeast side trades for a fraction of it, and then costs the buyer years and a planning process to reach the same starting line.
It is also a useful benchmark to carry. Land comps on the southeast side are thin enough that a single recorded, arms-length pad sale does real work — it tells you what a builder was willing to pay to be at Old Vail and Houghton in mid-2026, with a permit in hand and a tenant already signed.
Where the Other Two Stand
- Houghton Town Center (Closed July 17, Permit issued, Grading): 10084 E. Old Vail Road, near Houghton Road. Tenet Equity Funding SPE II LLC bought 3.41 acres from Diamond Ventures affiliate Houghton Developers LLC for $2,819,391. Building drawn at 40,579 square feet; groundwork under way.
- Oro Valley Marketplace (45,000 sq ft, Existing building, No date): A conversion of the former Ashley Furniture box at Oracle and Tangerine, listed in the center directory at 12155 N. Oracle Road. No land transaction is involved, and no opening date has been published.
- Cascada, Twin Peaks & I-10 (40,000 sq ft, Planned, No date): A standalone new build at the northeast corner of Twin Peaks Road and Interstate 10 in Marana, inside the planned Cascada center. No comparable land close or permit milestone has been published.
Why a Pad Sale Is a Better Signal Than an Announcement
Announcements are free. A recorded deed, a wire for $2.8 million and an issued permit are not, and that is the whole reason this transaction is worth more than the press release that preceded it by six months. Plans get quietly reworked, sites get swapped, and phases slip a year — none of which generates a follow-up story. A closing does generate a record, with a date and a number on it, which is why land transactions are the cheapest reliable way to tell an intention from a commitment.
The same logic applies in reverse to the other two sites. Neither has gone quiet in any meaningful sense; a building conversion inside an existing center does not require a land purchase, so there is nothing to record. But it does mean that as of today the southeast-side club is the only one of the three with a public, dated milestone behind it.
What Changes for the Old Vail Road Corridor
For anyone touring homes on the Rita Ranch and Vail side of the metro, the near-term change is a construction site rather than an amenity: grading, truck traffic and a fenced pad on Old Vail Road, for as long as a 40,000-square-foot building takes to put up. The amenity itself has no published opening date, and nothing about a permit obliges one.
The longer-range read is about the center rather than the club. Houghton Town Center is a platted commercial center absorbing its pads one at a time, and each one that fills makes the next one easier to lease. If everyday-errand distance is part of why a house on that side appeals to you, the thing to watch is not this one building — it is how quickly lots 48 and up find buyers.
Quick reference (September 2, 2026): Tenet Equity Funding SPE II LLC purchased lots 44, 45, 46 and a portion of lot 47 at Houghton Town Center — about 3.41 acres, or 148,400 square feet, at 10084 E. Old Vail Road near Houghton Road — from Houghton Developers LLC, an affiliate of Diamond Ventures, for $2,819,391, closing July 17, 2026. That is roughly $19.00 per square foot of land, or about $826,800 per acre. The building permit has been issued for a 40,579-square-foot Mountainside Fitness club and groundwork is under way. No opening date has been published for this club or for the company's two other announced Tucson-area sites at Oro Valley Marketplace and at Twin Peaks Road and I-10 in Marana. Construction schedules move — confirm current details before relying on any single figure.
The Deed Is the Schedule
There is a habit worth borrowing from people who watch commercial corners for a living: when a project is announced, note it and wait. The announcement tells you what someone hopes to do. The recording tells you what someone has paid to do, on a specific date, for a specific number, on a specific piece of ground. Six months separated those two moments here, and the second one is the one that moved the building.
Sources
Real Estate Daily News — "Tenet Equity Acquires Houghton Town Center Site for $2.82 Million for Mountainside Fitness" — realestatedaily-news.com/tenet-equity-acquires-houghton-town-center-site-for-2-82-million-for-mountainside-fitness — published August 11, 2026, accessed September 2, 2026 (for the July 17, 2026 closing; the $2,819,391 price; the 3.41 acres and 148,400 square feet; lots 44, 45, 46 and a portion of lot 47 at Houghton Town Center; the 10084 E. Old Vail Road address near Houghton Road; the $19.00 per square foot and roughly $826,800 per acre figures; buyer Tenet Equity Funding SPE II LLC and seller Houghton Developers LLC as a Diamond Ventures affiliate; the 40,579-square-foot planned building; and the issued building permit with groundwork under way).
Real Estate Daily News — "Mountainside Fitness Expanding into Southern Arizona" — realestatedaily-news.com/mountainside-fitness-expanding-into-southern-arizona — published January 14, 2026, accessed September 2, 2026 (for the January announcement of three Tucson-area clubs, the 45,000-square-foot former Ashley Furniture space at Oro Valley Marketplace, and the 40,000-square-foot new builds at Houghton Town Center and at Twin Peaks Road and Interstate 10 in Marana).
Greater Phoenix In Business Magazine — "Valley Fitness Brand Enters Tucson with Multi-Site Expansion Across Oro Valley, Houghton, and Twin Peaks" — inbusinessphx.com/growth-enterprise/valley-fitness-brand-enters-tucson-with-multi-site-expansion-across-oro-valley-houghton-and-twin-peaks — published January 15, 2026, accessed September 2, 2026 (for the Cascada retail center name at the northeast corner of Twin Peaks Road and I-10, and the mid-to-late 2026 opening window announced for all three clubs).
Oro Valley Marketplace — center directory listing for Mountainside Fitness — orovalleymarketplace.com/directory/store/mountainside-fitness — accessed September 2, 2026 (for the 12155 N. Oracle Road, Oro Valley, AZ 85737 address and the level-one tenant placement).
All details are current as of September 2, 2026; construction schedules, permits, ownership structures and opening dates change, so readers should confirm current information before relying on any single figure. Nothing here is legal, tax or investment advice. This post is for informational purposes only and is not an offer to sell or a solicitation of an offer to purchase real estate. Kyle Berglund and Tierra Antigua Realty fully support and comply with the Fair Housing Act and the Equal Opportunity Act.
Earlier coverage
- Arizona's Biggest Local Gym Picks Three Tucson Sites — May 15, 2026
Topics
- New Business
- Mountainside Fitness
- Houghton Town Center
- Old Vail Road
- Diamond Ventures
- Rita Ranch
- Commercial Real Estate
- Land
- Tucson
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