Development Secs.PLC - Blocklisting Interim Review

RNS Number:1248S
Development Securities PLC
10 April 2008

BLOCKLISTING SIX MONTHLY RETURN

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

To: The FSA

Date: 10th April 2008

1. Name of applicant:

...Development Securities
PLC.........................................................

2. Name of scheme

...Executive Share Option Scheme
1995.........................................................

3. Period of return:

From...9th October 2007......................To......8th April
2008....................

4. Balance under scheme from previous return:

...565,869 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:

...11,500 Ordinary Shares of 50p
each.........................................................

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

...554,369 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

...40,577,024 Ordinary Shares of 50p
each.........................................................

Name of contact......S A Lanes........................

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

Telephone number of contact ...020 7828 4777........................

Signed by ...S A Lanes...................................

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.

This information is provided by RNS
The company news service from the London Stock Exchange

END
BLRFGGMDNGNGRZM