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               15 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          38,396,313   (3.57%)     3,511,942   (0.33%)
securities
(2) Derivatives        1,706,402   (0.16%)       569,655   (0.05%)
(other than
options)
(3) Options and        1,103,319   (0.10%)     1,350,000   (0.13%)
agreements to
purchase/sell
Total                 41,206,034   (3.83%)     5,431,597   (0.50%)



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


Class of relevant            Long                      Short
security:

2.625% Convertible     Number       (%)           Number     (%)
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 relevant            Long                        Short
security:

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

(1) Relevant          1,020,000    (0.24%)             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                 1,020,000    (0.24%)             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      6,184                8.2758
Purchase      90,000               8.2749
Purchase      200                  8.2750
Purchase      4,715                8.2628
Purchase      10,585               8.2750
Sale          750                  8.2603
Sale          14,161               8.2671
Sale          1,139                8.2650
Sale          200                  8.2750
Sale          13,838               8.2692
Sale          21,622               8.2734
Sale          33,427               8.2750



 (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          14,161                8.2671
CFD        Long          1,139                 8.2650
CFD        Long          13,838                8.2692
CFD        Short         4,715                 8.2628
CFD        Short         6,184                 8.2758



(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 (Note
                varying etc.      relates (Note 7)                                      5)


(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                         16 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