BNL Build-To-Suit Spread Narrows as Financing Costs Rise

Broadstone Net Lease (BNL) relies on an industrial build-to-suit program to drive rent growth. Tenants commit early. BNL develops the facility to their specs, and the lease locks in for 15 years or more. The model works when construction costs stay predictable and tenants are willing to sign long-term. Neither condition is secure right now.

BNL's portfolio is 45% industrial by square footage, with another 20% in retail and the rest split across office and healthcare. The build-to-suit segment has been the main driver of same-store NOI growth over the past three years, the company said in its annual report. The mechanics of that model are under pressure from two directions.

Construction financing costs have risen roughly 200 basis points since the start of the year, according to industry data. BNL funds most of its development pipeline through secured credit lines and unsecured notes. The REIT's weighted-average cost of debt stood at about 4.7% at the last quarterly report. New money today costs more. That compresses the spread between the project's yield-on-cost and the financing cost, the margin that makes build-to-suit worthwhile.

Tenant credit is the second pressure. BNL's tenant base skews toward middle-market firms, grocery chains and auto parts distributors. These are not investment-grade credits. In a slower economy, their willingness to sign 15-year leases for custom-built facilities may weaken. The company's retention rate on expiring leases has held above 80%. The next wave of expirations hits in 2026, when roughly 4% of the portfolio rolls. That is not a near-term threat. The pipeline of new pre-leased projects could thin if tenants balk at higher rents tied to higher construction costs.

The base case is that BNL continues to execute. Occupancy remains above 99%. The dividend is covered by funds from operations. The development pipeline stands at roughly $400 million, with 60% already pre-leased. That backlog gives three to four years of visible growth.

The deeper concern is that the pre-leased percentage matters less than the yield spread on those projects. BNL targets a 7-8% unlevered yield on its developments. With debt now costing 5.5-6%, the equity spread after leverage is narrow. If the Fed holds rates through year-end, that spread could slip below management's internal hurdle. The risk is not a tenant pulling out. It is that new projects simply do not pencil out, and the pipeline dries up.

Analysts watch for a rise in BNL's capitalization rate relative to peers. The stock trades at a 5.8% implied cap rate, roughly in line with the industrial REIT sector average. A 50-basis-point widening would suggest the market expects thinner development margins, several sell-side analysts wrote in recent notes. To weaken the bear case, BNL would need to announce new pre-leased developments with yields above 7.5%, the Seeking Alpha analyst wrote. Each new project locked in at a healthy spread would show the model still works at current rates.

The next scheduled fact is BNL's third-quarter earnings call in early November. The company will report its development pipeline additions and the yield-on-cost for new starts. Pipeline growth with yields below 7% would pressure the thesis that industrial build-to-suit keeps the growth story intact.