Holding(s) in Company

Slough Estates PLC
22 October 2003


22 October 2003


The Company Secretary
Slough Estates Plc
234 Bath Road
Slough SL1 4EE


Dear Sir


Companies Act 1985 ('The Act') - Part VI


I hereby inform you that as at 16 October 2003 Barclays PLC, through the legal
entities listed on the attached schedule, has a notifiable interest in the
capital of your Company of 4.06%.


Details of this interest, together with a breakdown between registered holders
(as required by Section 202(3) of the Act), are enclosed.


The issued capital of 417,081,514 is the latest figure available to us. If this
is incorrect please let me know.


If you have any questions arising from this letter, please contact me on 020
7699 2305.

Yours faithfully


Geoff Smith

Manager, Secretarial Services


Registered Holder

SLOUGH ESTATES SEDOL: 0814104                   Holding Account Designation               Holding


ALMLUFTTL-18409-CHASE MANHATTA                        ALMLUFTT                            217,782

ASTEXMTTL-21359-CHASE NOMINEES                        ASTEXMTT                            173,908

ASUKEXTTL-20947-CHASE MANHATTA                        ASUKEXTT                          5,550,547

Bank of Ireland                                       BNX0091E                            113,569

BARCLAYS CAPITAL NOMINEES LIMI                                                             18,265

Barclays Trust Co & Others                                                                 22,600

Barclays Trust Co DMC69                                                                    27,000

Barclays Trust Co E99                                                                       3,388

Barclays Trust Co R69                                                                      79,719

BLENTFUKQ-16344-CHASE MANHATTA                        BLENTFUK                             39,848

BLENTPUKQ-16345-CHASE MANHATTA                        BLENTPUK                             72,020

BLEQFDUKQ-16331-CHASE MANHATTA                        BLEQFDUK                             96,409

BLEQPTUEA-16341-CHASE MANHATTA                        BLEQPTUE                            117,127

BLEQPTUKQ-16341-CHASE MANHATTA                        BLEQPTUK                            269,887

BLINTNUKQ-16338-CHASE NOMINEES                        BLINTNUK                             28,928

BLINTPUKQ-16342-CHASE MANHATTA                        BLINTPUK                             48,748

BLUKINTTL-16400-CHASE MANHATTA                        BLUKINTT                          4,210,243

BOSTON SAFE DEPOSIT AND TRUST                           591668                             88,688

CHASE MANHATTAN BANK                                    500227                          1,938,380

CHASE MANHATTAN BANK                                    502872                            598,749

CHASE MANHATTAN BANK                                    508068                            179,609

CHASE MANHATTAN BANK                                    527191                            605,569

CHASE MANHATTAN BANK                                    536747                            129,473

CHASE MANHATTAN BANK                                    552942                             73,547

Chase Manhattan Bank                                    585439                              7,390

CHATRKTTL-16376-CHASE MANHATTA                        CHATRKTT                            209,431

As at 16 October 2003 Barclays PLC, through the registered holders listed below,
had a notifiable interest in 16,917,579 ORD GBP0.25 4.06 representing % of the
issued share capital of 417,081,514 units.


Registered Holder
SLOUGH ESTATES SEDOL: 0814104

Holding Account Designation                   Holding Account Designation          Holding

CITIBANK, N.A. (United States)                          597367                      46,856

INVESTORS BANK AND TRUST CO.                            428169                      40,370

INVESTORS BANK AND TRUST CO.                            555879                       8,271

INVESTORS BANK AND TRUST CO.                            573039                      49,329

INVESTORS BANK AND TRUST CO.                            583293                     273,905

INVESTORS BANK AND TRUST CO                             585918                       1,812

INVESTORS BANK AND TRUST CO.                            586072                      39,884

INVESTORS BANK AND TRUST CO.                            595966                      74,413

INVESTORS BANK AND TRUST CO.                            598856                       6,462

INVESTORS BANK AND TRUST CO.                            601389                       8,993

INVESTORS BANK AND TRUST CO.                            601673                      29,984

INVESTORS BANK AND TRUST CO.                            601682                       6,473

INVESTORS BANK AND TRUST CO.                            601691                       4,478

INVESTORS BANK AND TRUST CO.                            911140                      12,529

JPMORGAN CHASE BANK                                     540186                      40,691

JPMORGAN CHASE BANK                                     555465                      74,128

JPMORGAN CHASE BANK                                     599123                      12,236

JPMorgan Chase Bank                                   BTC034IE                       5,580

JPMorgan Chase Bank                                   BTC045IE                      47,370

JPMorgan Chase Bank                                   BTGF04IE                      54,352

JPMorgan Chase Bank                                   BTGF07IE                       9,293

JPMorgan Chase Bank                                   BTK001IE                      48,839

JPMorgan Chase Bank                                   BTS004IE                      46,627

JPMorgan Chase Bank                                   BTS005IE                       6,027

JPMorgan Chase Bank                                   BTS011IE                      27,386

JPMorgan Chase Bank                                   BTS015IE                      27,001

As at 16 October 2003 Barclays PLC, through the registered holders listed below,
had a notifiable interest in 16,917,579 ORD GBP0.25 4.06 representing % of the
issued share capital of 417,081,514 units.

Registered Holder
SLOUGH ESTATES SEDOL: 0814104

                                                Holding Account Designation       Holding

JPMorgan Chase Bank                                    BTS018IE                     1,576

JPMorgan Chase Bank                                    BTS024IE                     4,407

JPMorgan Chase Bank                                    BTS028IE                   187,241

JPMorgan Chase Bank                                    BTS033IE                     5,303

JPMorgan Chase Bank                                    BTS036IE                     8,048

JPMorgan Chase Bank                                    BTS037IE                    21,554

Master Trust Bank                                      BNNP06IE                    31,913

Mitsubishi Trust International                         BNN018IE                     2,275

Mitsubishi Trust International                         BNN046IE                    14,754

NORTHERN TRUST BANK - BGI SEPA                           581610                    62,851

NORTHERN TRUST BANK - BGI SEPA                           584069                    26,538

State Street                                           BNX012IE                     7,740

STATE STREET BANK & TRUST - US                           713101                   429,417

Sumitomo TB                                            BNN052IE                    10,997

UBS Limited                                              583996                    99,875

ZEBAN NOMINEES LIMITED                                                             78,977

TOTAL                                                                          16,917,579


As at 16 October 2003 Barclays PLC, through the registered holders listed below,
had a notifiable interest in 16,917,579 ORD GBP0.25 4.06 representing % of the
issued share capital of 417,081,514 units.

Legal Entity
SLOUGH ESTATES

Percentage Held Holding

SEDOL: 0814104

                                                   Holding               % Held

Barclays Capital Securities Ltd                     18,265               0.0044

Barclays Global Investors Japan Trust & Banking    500,604               0.1201

Barclays Global Investors, N.A                   4,745,582               1.1382

Barclays Global Fund Advisors                      110,499               0.0265

Barclays Life Assurance Co Ltd                     672,967               0.1614

Barclays Bank Trust Company Ltd                    132,707               0.0318

Barclays Global Investors Ltd                   10,361,911               2.4853

Barclays Private Bank Ltd                           78,977               0.0189

Barclays Global Investors Japan Ltd                181,248               0.0435

Barclays Global Investors Australia Ltd            114,819               0.0275

TOTAL                                           16,917,579               4.0576


As at 16 October 2003 Barclays PLC, through the legal entities listed below, had
a notifiable interest in 16,917,579 ORD GBP0.25 4.06 representing % of the
issued share capital of 417,081,514 units.



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