Castellum — Earnings Release 2011

Apr 19, 2011

Castellum AB (publ), Box 2269, SE-403 14 Göteborg Org nr/Corp Id no SE 556075-5550 Tel +46 31 60 74 00 Fax +46 31 13 17 55

PRESS RELEASE No 9 – April 19, 2011

Castellum's first quarter 2011:

Increased investment pace and improved net leasing

• Rental income for the period January-March 2011 amounted to SEKm 717 (SEKm 674 corresponding period previous year).
• Income from property management amounted to SEKm 250 (234), corresponding to SEK 1.52 (1.43) per share, an increase with 6%.
• The changes in value on properties amounted to SEKm 97 (46) and on interest rate derivatives to SEKm 171 (-53).
• Net income after tax for the period amounted to SEKm 394 (173), equivalent to SEK 2.40 (1.05) per share.
• The investments amounted to SEKm 522 (255) of which SEKm 244 (172) were new construction, extensions and reconstructions and SEKm 278 (83) acquisitions.

The net leasing during the first quarter of the year amounted to SEKm 21 (2). The gross leasing during the period were SEKm 75 (69), of which SEKm 12 (10) were leasing on new construction, extensions and reconstructions. Notices of termination amounted to SEKm 54 (67), of which bankruptcies were SEKm 4 (3).

"The improved net leasing together with the increased investment pace reflects the growth in the Swedish economy and above all the growth in employment" comments CEO Håkan Hellström.

Enclosure: Interim Report January-March 2011

For further information, please contact

Håkan Hellström, CEO, phone +46 31 60 74 00 / mobile +46 705-60 74 56 Ulrika Danielsson, Finance Director, phone +46 31 60 74 00 / mobile +46 706-47 12 61

www.castellum.se

Castellum is one of the major listed real estate companies in Sweden. The fair value of the real estate portfolio amounts to approx. SEK 32 billion, and comprises premises for office, retail, warehouse and industrial purposes with a total lettable area of approx 3.3 thousand sq.m. The real estate portfolio is owned and managed by six wholly owned subsidiaries with strong local roots in five growth regions: Greater Gothenburg, the Öresund Region, Greater Stockholm, Mälardalen and Eastern Götaland.

Castellum is listed on NASDAQ OMX Stockholm AB Large Cap.

Castellum AB (publ) discloses the information provided herein pursuant to the Securities Markets Act and/or the Financial Instruments Trading Act.