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               16 FEBRUARY 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        39,981,479     (3.71%)    1,991,084    (0.18%)
securities
(2) Derivatives        490,785     (0.05%)      128,115    (0.01%)
(other than
options)
(3) Options and              0     (0.00%)            0    (0.00%)
agreements to
purchase/sell
Total               40,472,264     (3.76%)    2,119,199    (0.20%)





(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          8,843,000    (2.08%)           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                 8,843,000    (2.08%)           0     (0.00%)



Class of relevant            Long                   Short
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      1,243                8.0700
Purchase      30,406               8.2054
Purchase      775                  8.2500
Purchase      20,000               8.1471
Purchase      94,669               8.2155
Purchase      146                  8.1950
Purchase      15,000               8.1950
Sale          500                  8.1520
Sale          600                  8.1714
Sale          5,970                8.2038
Sale          6,680                8.1771
Sale          1,205                8.1771
Sale          1,505                8.1771
Sale          1,345                8.2038
Sale          1,077                8.2038
Sale          53,264               8.1076
Sale          18,397               8.2479
Sale          13,351               8.0850
Sale          1,750                8.1800
Sale          147,713              8.1923
Sale          15,000               8.1991
Sale          78,555               8.1500



The following transaction, which was reported on 10 February 2006, has been
cancelled.


Purchase/sale Number of Securities Price per unit
                                   (GBP)
Purchase      75,000               7.5200



The following transaction, which was reported on 14 February 2006, has been
cancelled.


Purchase/sale Number of Securities Price per unit
                                   (GBP)
Sale          130,080              7.8000





(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          147,713               8.1923
CFD        Long          18,397                8.2479
CFD        Short         94,669                8.2155
CFD        Short         30,406                8.2054
CFD        Long          36,989                8.1697
CFD        Long          177,806               8.2114
CFD        Long          86,346                8.2114
CFD        Long          201,298               8.2114
CFD        Long          94,669                8.2114




(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 (GBP)


(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                         17 FEBRUARY 2006
Contact name                               BARCLAYS CORPORATE SECRETARIAT
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