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               13 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         38,533,344    (3.58%)     3,404,368   (0.32%)
securities
(2) Derivatives       1,531,328    (0.14%)       571,328   (0.05%)
(other than
options)
(3) Options and       1,103,319    (0.10%)     1,350,000   (0.13%)
agreements to
purchase/sell
Total                41,167,991    (3.82%)     5,325,696   (0.49%)



(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        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      15,000               7.9650
Purchase      4,996                8.3150
Purchase      125,000              8.3500
Purchase      13,648               8.3339
Purchase      6,861                8.3225
Sale          220                  8.3465
Sale          800                  8.3303
Sale          746                  8.0910
Sale          800                  8.0350
Sale          5,258                8.2692
Sale          139,700              8.3172
Sale          370,473              8.3462
Sale          36,000               8.3200
Sale          15,000               7.9690
Sale          700                  8.1456
Sale          250                  7.9703
Sale          90                   8.1157
Sale          245                  8.0103


(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          139,700               8.3172
CFD        Long          370,473               8.3462
CFD        Long          5,258                 8.2692
CFD        Short         13,648                8.3339



(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                         14 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