Diamond Lofts Moves Forward in Buffalo's Midtown: 167 Apartments Planned for Two Main Street Buildings

Buffalo's Midtown Main Street corridor has quietly become one of the more active residential development zones in the city. Projects have been completed, are under construction, or are now formally moving forward along the stretch of Main Street north of downtown — and a new one just crossed a meaningful threshold.

On June 1, 2026, Buffalo Rising reported that R.E. McNamara's 1440 Main Street LLC affiliate purchased the former AAA Safe and Lock building at 1440 Main Street for $860,000, acquiring the first of two properties needed for the Diamond Lofts project. The Clarence-based contractor and developer — led by Patrick and Richard McNamara — plans a $50 million residential-anchored development that will transform two adjacent Main Street buildings into 167 apartments.

The Project: Two Buildings, Two Approaches

The Diamond Lofts development involves two distinct structures on neighboring parcels, each requiring a different construction approach.

The 1440 Main Street parcel — the former AAA Safe and Lock building — will be demolished. In its place, McNamara plans a five-story building with 118 apartments and indoor parking. The parcel was purchased from Frederick A. Culliton Jr. for $860,000 and occupies the footprint where the new building will rise.

The second building is the former Diamond Storage building, a seven-story warehouse structure that McNamara plans to renovate and convert to 49 apartments. The McNamaras have not yet closed on the Diamond Storage building — that acquisition remains pending before construction can begin. Silvestri Architects designed the project.

Together, the two buildings would deliver 167 total units in the heart of Midtown Buffalo. As reported by WBEN, Diamond Lofts is one of several residential-anchored developments in the Midtown district that have been completed, proposed, or put under construction in recent years.

Approvals and Design History

The project received approval in February 2026, following a revision prompted by neighborhood pushback. According to Buffalo Rising, original plans called for 174 total units — 42 in the existing Diamond Storage building and 132 in the new structure. After Linwood Avenue residents raised concerns about the proposed height of the new building's rear elevation, the development team added a top-floor setback. The revised and approved plan reduced the total to 167 units: 49 in the existing warehouse and 118 in the new five-story building.

Midtown's Residential Momentum

The Diamond Lofts project reflects a broader transformation underway in Midtown Buffalo. The $70 million Middle Main Streetscape Project — which broke ground in May 2026 — will reconstruct 2.5 miles of the corridor from Goodell Street to Kensington Avenue, creating new infrastructure expected to support further residential and commercial investment along the route, with completion scheduled for spring 2029 per the City of Buffalo's May 2026 announcement.

In that context, Diamond Lofts is one of the private-sector investments that the public streetscape investment is designed to catalyze. A 167-unit residential project in a corridor about to undergo major physical improvement is the kind of sequencing that creates durable neighborhood investment rather than isolated development islands.

Construction Path and Timeline

Construction on Diamond Lofts is contingent on completing the second property acquisition — the Diamond Storage building. Once both parcels are in hand, the development team can proceed to construction. No specific groundbreaking date has been formally announced. Given that the project has already received approvals and the first property has been acquired, the remaining sequencing is primarily a function of the second closing and financing finalization.

At $50 million total, Diamond Lofts would represent a significant infill investment in Midtown — not the scale of the largest Buffalo projects, but substantial for a neighborhood that has historically struggled to attract private residential capital. The combination of a new five-story building and an adaptive reuse of a seven-story historic warehouse gives the project architectural variety and speaks to the mix of construction types active in the corridor.

The demolition of the AAA Lock building, followed by new ground-up construction on that footprint, represents a different construction type than the warehouse conversion at Diamond Storage — meaning the project effectively encompasses two concurrent but distinct construction contracts once both acquisitions close. That complexity is managed by a developer who is also a contractor, giving McNamara direct control over sequencing, procurement, and schedule risk.

Construction Delivery: Two Projects Running in Sequence

The Diamond Lofts project effectively involves two distinct construction contracts running in sequence. The first — at 1440 Main Street — begins with demolition of the existing commercial building followed by ground-up construction of a five-story, 118-unit residential building with an integrated parking podium. New ground-up construction of this type on an urban infill site in Buffalo typically requires soil borings, geotechnical analysis, and utility coordination with the City of Buffalo Department of Public Works before foundation work can begin. Urban sites along Main Street corridors often carry buried utilities, former underground storage tanks, or historical fill conditions that require investigation during the preconstruction phase.

The second contract — the Diamond Storage warehouse conversion — represents a classic adaptive reuse challenge: a seven-story masonry warehouse built for storage loads will be converted to residential occupancy, requiring full code compliance for the new use. That typically means new mechanical, electrical, and plumbing systems throughout; fire suppression installation; window enlargements or additions for egress and natural light requirements; and elevator installation or upgrade. Masonry warehouse conversions also frequently surface unexpected structural conditions — deteriorated beams, inadequate floor-to-floor heights for residential code requirements, or out-of-plumb walls — that require design modifications during construction.

Because McNamara is both the developer and a general contractor, the firm has direct control over sequencing decisions, subcontractor selection, and procurement timing — an advantage that reduces the risk of adversarial change order disputes and allows design adjustments to be resolved efficiently. That owner-builder dynamic is particularly valuable in a two-phase project where the ground-up and renovation scopes share a site and must be coordinated to avoid access conflicts.

What to Watch

The remaining milestone before construction can begin is the closing of the Diamond Storage building acquisition. Once both parcels are in McNamara's control and financing is finalized, the project can sequence demolition of the former AAA Lock building, followed by new construction at 1440 Main, concurrent with or followed by the warehouse conversion. The February 2026 approvals are valid and in place — the project is now in the execution phase of preconstruction, not the entitlement phase.