Law Firm McDermott Leases 7 Floors at BXP’s New 343 Madison Ave.

Why this matters

The commitment by a major law firm to lease a substantial block of space at BXP’s 343 Madison Avenue underscores a cautiously optimistic undercurrent in the US office sector, particularly in prime urban cores. In an environment where office leasing remains challenged by hybrid work trends and tenant downsizing, a large, multi-floor lease signals selective demand resilience among professional services firms. This deal may reflect a strategic repositioning by tenants seeking high-quality, amenitized space that supports collaboration and client engagement, rather than a return to pre-pandemic occupancy levels across the board. For institutional investors and capital providers, the transaction highlights the bifurcation within office markets: trophy assets in gateway cities continue to attract creditworthy tenants, supporting income stability and underwriting assumptions. It also suggests that landlords with newly delivered, well-located product can still command significant leasing velocity, which is critical for maintaining asset values amid broader sector headwinds. Lending sources will likely view such leases as a positive indicator of cash flow durability, potentially easing financing conditions for top-tier office developments. However, the broader market remains uneven, and this deal should be interpreted as a signal of selective strength rather than a sector-wide recovery.

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On the RET wire

• Disclosed office deal value tracked in June 2026: $9.2B across 60 reported transactions. All Office coverage →
• 15 stories mentioning BXP on the wire in the past 90 days. BXP coverage →

Computed from Real Estate Trail’s own tracked coverage

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