Britain's out-of-town retail parks are operating at near full capacity, with just 1.8 per cent of available space across 407 million square feet, according to Savills data. This represents a record low vacancy rate that's constraining expansion plans for major retailers seeking larger formats. The shortage reflects strong demand from supermarkets and discount chains competing for prime locations, while new development struggles to keep pace.

British Land reports 99 per cent occupancy across its 1,200-unit portfolio, highlighting the intense competition for space. Lettings activity has softened to 721 in 2025 versus a long-term average of 847, as developers face rising construction costs and lengthy planning processes. Johnny Rowland of Savills notes that future development will likely be limited to small schemes anchored by food retailers, creating a bottleneck for ambitious brands seeking to expand.

The shift comes as retailers refocus on physical stores after years of prioritizing online channels. Marks & Spencer and John Lewis are investing heavily in store refurbishments to meet consumer demand for tactile shopping experiences and easier returns. Stephen Springham of Knight Frank observes this represents a return to fundamentals, reversing the neglect many chains showed during their digital expansion phase.

Retail parks now outperform other UK commercial real estate, with 91 per cent of retailers renewing leases, making them one of the "stickiest" property segments. Tenant mix is evolving, with discount chains like Home Bargains and B&M claiming the largest share of available space. While some regions such as Merthyr Tydfil and Penrith face oversupply, inner London locations including Clapham Junction and Camden experience serious shortages.