What is your basement worth? Turning underutilized space into a performing asset - by Nick Esteves

In New York real estate, every square foot has value. Owners and property managers scrutinize operating costs, capital plans, and building systems for opportunities to improve performance. Yet one category of square footage rarely gets the same financial attention: basements, former mechanical rooms, unused storage areas, and other overlooked spaces scattered throughout a building.

Across every category of residential property, these areas often produce little or no financial return. Some accumulate outdated or abandoned equipment. Others simply sit empty because no one has identified a practical use for them. In today’s operating environment, empty square footage represents a revenue opportunity lost.

As operating expenses continue to climb, owners and managers are looking for ways to generate ancillary income without significant capital outlay or added demands on staff. One opportunity may already exist within the property’s own footprint: converting underutilized space into professionally managed resident storage.

For many multifamily properties, the economics work because the demand already exists. New York apartments are notoriously short on storage, and residents need somewhere to keep bicycles, luggage, seasonal clothing and other belongings that don’t need to occupy living space year-round. Many tenants already pay for off-site storage, traveling blocks or miles to reach their own belongings — income that, for buildings with suitable unused space, is simply leaving the property.

Bargold Storage Systems works with owners and managers to capture that demand, converting underutilized areas into secure, in-building resident storage. The result is a new amenity and a recurring income stream generated from square footage that previously produced little or nothing, while the building does virtually nothing to earn it.

The process is turnkey, covering everything from space evaluation and design through manufacturing and installation. Once the system is operating, Bargold handles leasing, billing, resident communication, customer service, maintenance, and day-to-day administration. With minimal effort on the owner’s part, the building gains a new revenue stream and, more importantly, a valuable resident amenity. And residents can readily access and store bicycles, strollers, and everyday items, along with seasonal belongings as well. 

Bargold manages everything from buildout to billing with no upfront costs. The property doesn’t need to hire staff, collect rents on the units or hand its management team another program to run. The building supplies the space, Bargold runs it, residents pay for the units they choose to rent, and the property collects a share of the proceeds.

For property managers, that turnkey structure is the key advantage. Adding an amenity typically means adding responsibility — fitness centers, lounges and other common areas require ongoing maintenance and, in many cases, capital expenditure. Even storage becomes a burden when buildings try to run older systems on their own, leaving staff to handle assignments, billing, access and resident complaints.

A professionally managed program removes those administrative demands while preserving the financial upside for the property. It also reframes how unused square footage should be evaluated. Rather than treating a basement or other vacant area strictly as non-revenue-producing back-of-house space, owners can reposition it as a performing asset.

Converting storage space or tenants using the Bargold system doesn’t require adding square footage — it simply extracts more value from space that already exists. That distinction matters when new amenities are competing for limited capital. A fitness center or resident lounge requires substantial investment before it produces any benefit; a storage conversion uses existing space, requires no upfront investment and creates income from day one.

The result is that the property gains an amenity with wide resident appeal. Demand for storage isn’t tied to any particular demographic — residents across apartment sizes and household types need additional space. Having storage units in the building is far more convenient for residents, rendering existing apartments more livable by reducing clutter.

That convenience also contributes to a property’s competitive positioning. In a market where prospective residents weigh building services and amenities alongside rent and finishes, secure on-site storage offers another tangible point of differentiation.

The opportunity grows more significant across a portfolio. A single unused room or basement may not draw much attention during a broader asset review, but multiply similar spaces across several properties and the performing formerly vacant square footage compounds into significant revenue.

In a market where every square foot counts, unused space shouldn’t simply be space a building carries. Every vacant space is now an asset waiting to perform.

Nick Esteves is vice president of Bargold Storage Systems, Mt. Vernon, N.Y.