Stable cash-flow - income from property management SEKm 889

Rental income for the period January-September 2011 amounted to SEKm 2,181 (SEKm
2,058 corresponding period previous year).

Income from property management amounted to SEKm 889 (861), corresponding to SEK
5.42 (5.25) per share, an increase with 3%.

The changes in value on properties amounted to SEKm 436 (563) and on interest
rate derivatives to SEKm -365 (-31).

Net income after tax for the period amounted to SEKm 719 (1,038), corresponding
to SEK 4.38 (6.33) per share.

Net investments amounted to SEKm 1,066 (456) of which SEKm 775 (593) were new
constructions, extensions and reconstructions.

The net leasing during the period amounted to SEKm 69 (13). The gross leasing
during the period was SEKm 246 (177), of which SEKm 41 (27) were leases for new
constructions, extensions and reconstructions. Notices of termination amounted
to SEKm 177 (164), of which bankruptcies were SEKm 15 (5).

"Demand for Castellum's premises remains strong despite signs of a decline in
the Swedish economy" comments CEO Håkan Hellström.

An election committee has been appointed in accordance to the Annual General
Meeting's decision. The election committee is formed by: Maj-Charlotte Wallin
representing AFA Försäkring, Rutger van der Lubbe representing Stichting
Pensioenfonds ABP, Lars-Åke Bokenberger representing AMF Pension and the
Chairman of the Board Jan Kvarnström.

Enclosure: Interim Report January-September 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

Castellum is one of the major listed real estate companies in Sweden. The fair
value of the real estate portfolio amounts to SEK 33 billion, and comprises
premises for office, retail, warehouse and industrial purposes with a total
lettable area of 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.

 This announcement is distributed by Thomson Reuters on behalf of 
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     other applicable laws; and 
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      originality of the information contained therein. 
 Source: Castellum AB (publ) via Thomson Reuters ONE