Cost Segregation on a 50-Unit Apartment Complex: Amenities Change the Math

A fifty-unit complex is a different animal from a twenty-unit building, and not because it is two and a half times larger. It is different because at fifty units the property almost always carries amenities that a twenty-unit does not: a real clubhouse, a pool, a fitness center, sometimes a dog park or covered mail kiosk.

Those amenities are disproportionately made of short-life assets. That is why fifty-unit reclassification percentages run higher than twenty-unit percentages even though the unit interiors are identical.

Unit Interiors: The Predictable Part

Fifty appliance packages, fifty kitchens, roughly 40,000 to 55,000 square feet of finish flooring, and fifty units of lighting, blinds, and fixtures. Under IRC Sec. 168(e)(3)(B) this is five-year property and it scales linearly. Expect 9% to 12% of depreciable basis from in-unit assets alone, which is the same percentage a twenty-unit produces.

Where fifty units does add something is in-unit washer and dryer sets. At this size in-unit laundry is standard rather than optional in most markets, and fifty sets of equipment plus the dedicated 240-volt circuits and dryer venting serving them is a meaningful five-year block that a twenty-unit property with a shared laundry room does not have.

Amenity Assets Are the Differentiator

The clubhouse is the highest-density short-life building on the property. Leasing office furniture and workstations are seven-year property under IRC Sec. 168(e)(3)(C)(ii) as office furniture and fixtures. Clubhouse decorative lighting, millwork, flooring, window treatments, the coffee bar equipment, and the audiovisual systems are five-year. The dedicated electrical serving the fitness equipment is five-year under the functional test in Treas. Reg. Sec. 1.48-1(e)(2).

Fitness equipment itself is five-year property and is often owned rather than leased at this size. A properly equipped fitness room at a fifty-unit community represents $60,000 to $120,000 of five-year basis.

The pool is a split asset and is one of the most commonly misclassified items in multifamily. The pool shell, decking, and coping are fifteen-year land improvements. The pump, filter, heater, chlorinator, and controls are five-year equipment. The pool fencing and gates are fifteen-year. The pool house restrooms are structure. A study that puts the whole pool complex in one bucket is leaving money in the wrong place regardless of which bucket it chose.

Land Improvements at Fifty Units

Site work scales more than proportionally with unit count because parking ratios, drive aisles, and drainage requirements grow with the site. A fifty-unit garden community typically carries 14% to 18% of depreciable basis in fifteen-year land improvements under Sec. 168(e)(3)(C).

The list includes the parking field and drive aisles, carports if present, site lighting with pole bases and dedicated circuits, perimeter and pool fencing, monument signage and its foundation and lighting, sidewalks and pedestrian lighting, retaining walls, landscaping and the irrigation system with its controllers and backflow preventers, storm drainage including catch basins and detention, mail kiosk pads and canopies, dog park fencing and equipment, and trash enclosure slabs and screening.

Worked Example: $6.8 Million Acquisition

An investor acquires a 2006-vintage fifty-unit garden community for $6,800,000. Land is allocated $1,000,000, leaving $5,800,000 of depreciable basis.

The study identifies five-year property of $696,000 (12%), seven-year property of $116,000 (2%), and fifteen-year land improvements of $928,000 (16%). Total reclassified basis is $1,740,000, or 30% of depreciable basis. Structure retained is $4,060,000.

Under IRC Sec. 168(k) the $1,740,000 is deductible in year one. The 27.5-year structure adds approximately $147,600. Total first-year depreciation is roughly $1,887,600, against about $210,900 without a study. The additional first-year deduction is $1,676,700.

At a 37% marginal rate that is approximately $620,300 of federal tax deferred in year one. Study fees at this size run $11,000 to $16,000.

What to Watch on the Exit

A fifty-unit study of this size puts roughly $812,000 into Sec. 1245 property. On sale, depreciation taken on that basis recaptures as ordinary income under Sec. 1245, not at capital gains rates. The $928,000 of land improvements recaptures under Sec. 1250, with the unrecaptured portion taxed at a maximum 25% rate.

This is not a reason to skip the study, but it is a reason to plan the exit before you take the deduction. A 1031 exchange under IRC Sec. 1031 defers the recapture along with the gain, which is the cleanest answer for owners who intend to keep trading up. Our post on what happens to depreciation when you sell walks through the recapture arithmetic in detail.

If you acquired the property in a prior year and skipped the study, the catch-up is available through Form 3115 without amending returns. The mechanics are covered in our Form 3115 catch-up guide.

Frequently Asked Questions

Why does a 50-unit reclassify more than a 20-unit?

Amenities. At 50 units the property almost always has a clubhouse, pool, and fitness center, and those buildings are dense with 5-year and 7-year assets. Site work also scales faster than unit count. Together these push reclassification from roughly 27% to roughly 30%.

How is a swimming pool classified?

It splits. The shell, decking, and coping are 15-year land improvements. The pump, filter, heater, and controls are 5-year equipment. Pool fencing is 15-year. The pool house structure is 27.5-year. A study that assigns the entire pool complex to one class is wrong regardless of which class it picks.

Is fitness equipment included in a cost segregation study?

Yes, if the owner purchased it as part of the acquisition or placed it in service as part of a renovation. It is 5-year personal property under IRC Sec. 168(e)(3)(B). Leased equipment is not included in the study because the owner has no depreciable basis in it.

---