The Diversity of Real Estate as an Asset Class
Real estate is not a monolithic category. Office buildings, logistics warehouses, hospitals, data centres, supermarkets, apartment blocks, and student accommodation are all "real estate" — but their economic characteristics, demand drivers, lease structures, and risk profiles are fundamentally different. The REIT universe reflects this diversity.
Understanding REIT types allows investors to make sector-specific allocations based on their views about economic conditions, demographics, and structural trends, rather than treating "property" as a single undifferentiated exposure.
Equity REITs vs Mortgage REITs
The most fundamental distinction in the REIT universe:
Equity REITs own and operate physical properties. Their income comes primarily from rents. The majority of REITs — and the ones most relevant to income and property exposure investors — are equity REITs.
Mortgage REITs (mREITs) do not own physical property. They invest in mortgages and mortgage-backed securities, earning interest income from the spread between their borrowing costs and their lending yields. mREITs are effectively leveraged bond funds with real estate collateral — their risk profile is driven by interest rate movements and credit quality, not property operational fundamentals. They tend to be significantly more volatile than equity REITs.
Equity REIT Sectors
Within equity REITs, the major sectors include:
Retail: shopping centres, high street retail, retail parks. This sector has faced sustained structural pressure from e-commerce. Major UK examples include Hammerson, Unibail-Rodamco-Westfield.
Office: city-centre office buildings and business parks. Post-pandemic hybrid working has created uncertainty about long-run office demand. Major examples include British Land.
Industrial and Logistics: warehouses, distribution centres, last-mile logistics facilities. This sector has benefited directly from e-commerce growth. Major examples include SEGRO (the UK's largest REIT by market capitalisation as of 2024), Prologis (US, global logistics leader).
Residential: apartment complexes, single-family rental portfolios, student accommodation, retirement living. In the UK, UNITE Group (student accommodation) and Grainger are examples.
Healthcare: hospitals, GP surgeries, care homes, life sciences facilities. Driven by demographic trends and long government-backed leases.
Specialist: data centres, self-storage, infrastructure. Safestore and Big Yellow (self-storage) are UK examples. Data centre REITs (Equinix, Digital Realty — US) have grown significantly with cloud computing demand.