UAI.L Regulatory News (UAI)

BLOCKLISTING SIX MONTHLY RETURN

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

To: The FSA

Date: 21 December 2010

1. Name of applicant:

Development Securities PLC……………………………………………………

2. Name of scheme

Executive Share Option Plan 2005…………………………………………………

3. Period of return:

From…15 June 2010………………….To……14 December 2010……..…………

4. Balance under scheme from previous return:

…500,000 ordinary shares of 50p…………………………………………………

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

………N/A…………………………………………

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

…None…………………………………………………

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

…500,000 ordinary shares of 50p each…………………………………………………

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

…500,000 ordinary shares of 50p each 15 June 2006……………………………………

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

…122,352,504 ordinary shares of 50p each…………………………………………………

Name of contact……H Ratsey……………………

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

Telephone number of contact …020 7828 4777………………………

Signed by …H Ratsey ………………………………..

Assistant Company Secretary, for and on behalf of Development Securities PLC

Name of applicant …H Ratsey - Assistant Company Secretary ………………………………..

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

BLOCKLISTING SIX MONTHLY RETURN

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

To: The FSA

Date: 21 December 2010

1. Name of applicant:

Development Securities PLC……………………………………………………

2. Name of scheme

Save As You Earn Option Plan 2005……………………………………………………

3. Period of return:

From…15 June 2010………………….To……14 December 2010……..…………

4. Balance under scheme from previous return:

…300,000 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

………N/A…………………………………………

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

…None…………………………………………………

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

…300,000 ordinary shares of 50p each…………………………………………………

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

…300,000 ordinary shares of 50p each 15 June 2006……………………………………

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

…122,352,504 ordinary shares of 50p each…………………………………………………

Name of contact……H Ratsey……………………

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

Telephone number of contact …020 7828 4777………………………

Signed by …H Ratsey ………………………………..

Assistant Company Secretary, for and on behalf of Development Securities PLC

Name of applicant …H Ratsey - Assistant Company Secretary ………………………………..

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