The gap in performance between the best and worst-performing institutional property investors grew to 24 percentage points during 2009.
This is according to new figures from the Investment Property Databank (IPD), which revealed the figures at an event in London earlier this week.
Malcolm Hunt, head of client services at the body, told attendees that the fifth and 95th percentiles provided returns of -8.5% and 15.2% respectively over the course of the year, with nearly 75% of the total number of funds giving a positive return.
Mr Hunt explained "the impact of yield adjustments upon capital values was the most important factor in distinguishing between fund returns and their rankings in 2009".
Retail warehouses were found to be the highest-weighted contributors to returns from
commercial property portfolios held by investors, accounting for 12% of the total.
South-east standard retails and standard retails in the rest of the UK contributed 10.5% and 6.7% respectively.
The IPD, which first began compiling property data in 1985, describes itself as the world leader in providing data to real estate investors.