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UK company intelligence
Company Active LTD

Company profile

Si Properties Limited

Si Properties Limited is a UK company with status active founded in 1919 based in London.

CRN
00160881
Founded
1919
Age
106

Overview

Legal name
SI PROPERTIES LIMITED
Region
London
Registered address
LEVEL 10
255 BLACKFRIARS ROAD
LONDON
ENGLAND
SE1 9AX
Insolvency history
No

Corporate ownership

Updated 06 Jun 2026 16:52

1 level 1 ultimate controller
1
Company Active LTD
Si Properties Limited
CRN 00160881
2
Direct and ultimate controller Active PLC
Smiths Group PLC
CRN 00137013

Company events

Reference milestones and recent Companies House filing stream events.

5 events
30 Apr
2027

Accounts due

Accounts Due

Next accounts due date

25 Jan
2027

Confirmation statement due

Confirmation Due

Next confirmation statement due date

11 Jan
2026

Confirmation statement filed

Confirmation

Last confirmation statement made up date

31 Jul
2025

Accounts filed

Accounts

Last accounts made up date

22 Nov
1919

Incorporated

Inception

Company registered at Companies House