Investment in Dutch warehousing properties rose 43% to EUR 948 mln in 2006, a study by property adviser Jones Lang La Salle shows. The 2006 investment volume figure was significantly higher than the EUR 632 mln annual average shown in the 2001-2005 period. The record investment volume was driven by an increase in portfolio transactions, which amounted to 20% of total warehousing investments last year compared to just 7% in 2001.