UAI.L Regulatory News (UAI)

BLOCKLISTING SIX MONTHLY RETURN

Information provided on this form must be typed or printed electronically.

To: The FSA

Date: 11th October 2010

1. Name of applicant:

Development Securities PLC

2. Name of scheme

Executive Share Option Scheme 1995

3. Period of return:

From: 9th April 2010 To: 8th October 2010

4. Balance under scheme from previous return:

528,179 Ordinary Shares of 50p each

5. The amount by which the block scheme has been increased, if the scheme has been increased since the date of the last return

……………………………………………..

6. Number of securities issued/allotted under scheme during period:

None

7. Balance under scheme not yet issued/allotted at end of period

528,179 Ordinary Shares of 50p each

8. Number and class of securities originally listed and the date of admission

1,367,500 Ordinary shares of 50p each - 8th October 1999

9. Total number of securities in issue at the end of the period

122,352,504 Ordinary Shares of 50p each

Name of contact: G Prothero

Address of contact: Portland House, Bressenden Place, London SW1E 5DS…

Telephone number of contact : 020 7828 4777

Signed by: G Prothero

Director for and on behalf of

Name of applicant Development Securities PLC

If you knowingly or recklessly give false or misleading information you may be liable to prosecution.