Blocklisting Interim Review

BLOCKLISTING SIX MONTHLY RETURN

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

To: The FSA

Date: 11 April 2012

1. Name of applicant:

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

2. Name of scheme

…Executive Share Option Scheme 1995…………………………………………

3. Period of return:

From…9 October 2011…to……8 April 2012……..…………

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: H Ratsey

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

Telephone number of contact: 020 7828 4777

Signed by: Helen Ratsey.

Company Secretary 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.