Only 64.2 million square feet of new retail space was under construction nationwide during the first quarter of 2026, a decline of roughly 8% from 70 million square feet in Q1 2025 and well below the 10-year average of 90 million square feet, according to CoStar Group data. The pullback in construction reflects a difficult development environment as sharp rises in land prices, construction costs, and interest rates over recent years have pushed required rents well above prevailing market levels for many retail formats. Beyond cost pressures, developers remain cautious following years of heightened supply risk awareness, while competition for sites from higher-density residential, industrial, and mixed-use projects further constrains retail development opportunities, particularly in infill locations. Despite tight construction pipelines, retail transaction volume reached $15.3 billion in Q1 2026, up 5% year-over-year, with national vacancy at 4.4% and institutional investors expanding allocations to the sector as retailers favor measured, capital-disciplined expansion strategies.