Rule 8.3 - BAA PLC

FORM 8.3

    DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
              (Rule 8.3 of the City Code on Takeovers and Mergers)


1.   KEY INFORMATION

Name of person dealing        BARCLAYS PLC
(Note 1)
Company dealt in              BAA PLC
Class of relevant security    ORD GBP 1.00
to which the dealings being
disclosed relate (Note 2)
Date of dealing               09 MARCH 2006



2.   INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a)  Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)


                                Long                      Short

                          Number       (%)          Number       (%)

(1) Relevant              38,671,551     (3.59%)   3,628,260    (0.34%)
securities
(2) Derivatives            1,661,220     (0.15%)     600,289    (0.06%)
(other than
options)
(3) Options and            1,103,319     (0.10%)   1,350,000    (0.13%)
agreements to
purchase/sell

Total                     41,436,090     (3.85%)   5,578,549    (0.52%)


(b)  Interests and short positions in relevant securities of the company, other
     than the class dealt in (Note 3)


Class of                     Long                      Short
relevant
security:

2.625%                 Number         (%)          Number       (%)
Convertible
bonds 19/08/2009

(1)     Relevant           9,843,000   (2.32%)             0  (0.00%)
securities
(2) Derivatives                    0   (0.00%)             0  (0.00%)
(other than
options)
(3) Options and                    0   (0.00%)             0  (0.00%)
agreements to
purchase/sell

Total                      9,843,000   (2.32%)             0  (0.00%)


Class of                       Long                       Short
relevant
security:

2.94%Convertible          Number       (%)          Number       (%)
bonds 04/04/2008

(1) Relevant               2,020,000   (0.48%)             0  (0.00%)
securities
(2) Derivatives                    0   (0.00%)             0  (0.00%)
(other than
options)
(3) Options and                    0   (0.00%)             0  (0.00%)
agreements to
purchase/sell

Total                      2,020,000   (0.48%)             0  (0.00%)


(c)  Rights to subscribe (Note 3)

Class of relevant security:   Details



3.   DEALINGS (Note 4)

(a)  Purchases and sales

Purchase/sale Number of Securities Price per unit
                                   (GBP)
Purchase      293                  Transfer
Purchase      150,000              7.8047
Purchase      462                  8.2600
Purchase      23,156               8.1009
Purchase      25,900               7.9399
Purchase      163,400              8.3050
Sale          7,500                7.6235
Sale          59,500               8.3862
Sale          94,900               8.3737
Sale          27,300               8.3110
Sale          150,000              7.8988
Sale          8,757                7.9061
Sale          44,744               8.3900
Sale          440                  8.0862


(b)  Derivatives transactions (other than options)

Product    Long/Short    Number of Securities  Price Per
name,      (Note 6)      (Note 7)              Unit (GBP)
e.g. CFD
CFD        Long          27,300                8.3110
CFD        Long          94,900                8.3737
CFD        Long          7,500                 7.6235
CFD        Long          8,757                 7.9061
CFD        Short         25,900                7.9399
CFD        Short         23,156                8.1009


(c)  Options transactions in respect of existing securities

(i)  Writing, selling, purchasing or varying

Product name,   Writing,          Number of          Exercise  Type, e.g.     Expiry      Option money
e.g. call       selling,          securities to      price     American,      date        paid/received
option          purchasing,       which the option             European etc.              per unit (GBP)
                varying etc.      relates (Note 7)

Call option     Purchasing        3,319              9.1700    European       08/05/2006  0.0747


(ii) Exercising

Product name, e.g.  Number of           Exercise price per
call option         securities          unit (Note 5)



(d)  Other dealings (including new securities) (Note 4)


Nature of transaction Details           Price per unit
(Note 8)                                (if applicable)
                                        (Note 5)



4.   OTHER INFORMATION

Agreements, arrangements or understandings relating to options or derivatives


Full details of any agreement, arrangement or understanding between the
person disclosing and any other person relating to the voting rights of
any relevant securities under any option referred to on this form or
relating to the voting rights or future acquisition or disposal of any
relevant securities to which any derivative referred to on this form is
referenced.  If none, this should be stated.





Is a Supplemental Form 8 attached? (Note 9)                 NO


Date of disclosure                         10 MARCH 2006
Contact name                               BARCLAYS COMPLIANCE
Telephone number                           020 7116 2913
If a connected EFM, name of
offeree/offeror with which connected
If a connected EFM, state nature of
connection (Note 10)


Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk