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               06 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              38,641,878     (3.59%)   3,531,140     (0.33%)
securities
(2) Derivatives            1,825,600     (0.17%)     606,724     (0.06%)
(other than
options)
(3) Options and            1,100,000     (0.10%)   1,350,000     (0.13%)
agreements to
purchase/sell

Total                     41,567,478     (3.86%)   5,487,864     (0.51%)


(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                  20,000  (0.00%)                 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                         20,000  (0.00%)                 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      498                  Transfer
Purchase      8,694                8.4192
Purchase      4,736                8.4308
Purchase      2,171                8.3936
Sale          650                  8.4065
Sale          1,000                8.4321
Sale          400                  8.4009
Sale          450                  8.4015
Sale          1,080                8.4138
Sale          504                  8.4121
Sale          639                  8.4121
Sale          520                  8.4121
Sale          93                   8.4121
Sale          117                  8.4121
Sale          137,500              8.3500
Sale          2,622                8.4061
Sale          312,854              8.4124
Sale          415,676              8.4072
Sale          8,229                8.4251


(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          312,854               8.4124
CFD        Long          415,676               8.4072
CFD        Long          8,229                 8.4251
CFD        Short         2,171                 8.3936
CFD        Short         4,736                 8.4308


(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   (GBP)     European etc.            per unit (GBP)
                varying etc.      relates (Note 7)

Call option     Purchasing        250,000            8.5000    American        16/06/2006  0.0038


(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                         07 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