DMM HOLDINGS LIMITED

Company summary

Company number: 00343835
Status: ACTIVE
Incorporated / age: 29 August 193888 years
Registered office: 4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England
Accounts due: 29 December 2026
Confirmation statement due: 3 November 2026
Active officers: 4
Outstanding charges: 0

Sourced from Companies House, retrieved 23 September 2026 at 22:19 UTC. This is public register information, not a credit or legal assessment.

Company type
Private limited company
Address
4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England
Nature of business
Other letting and operating of own or leased real estate
Previous company names
69 HARLEY STREET LTD.
HOUSE AND FLAT INVESTMENT TRUST LIMITED

Officer details

Name	Role	Appointed On	Resigned On	Country of Residence	Date of Birth	Address
MORDAUNT, William Peter John ACTIVE	Secretary	20 Apr 2026				4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England
MACKINNON, Joan Ailsa ACTIVE	Director			England	September 1936	4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England
MORDAUNT, Alastair Nigel Charles ACTIVE	Director	04 Nov 2025		England	January 1974	4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England
MORDAUNT, Helen Marie ACTIVE	Director	24 Nov 2021		England	January 1974	4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England
MACKINNON, Joan Ailsa RESIGNED	Secretary		01 Jan 2005			98 Old Park Ridings, London, N21 2EP
MORDAUNT, Helen Marie RESIGNED	Secretary	07 Dec 2004	24 Nov 2021			4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England
COSGROVE, Dominick RESIGNED	Director		09 Jun 2026	United Kingdom	September 1944	4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England
MACKINNON, David Michael RESIGNED	Director		29 Aug 2021	England	July 1931	4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England

MORDAUNT, William Peter John ACTIVE
Role: Secretary
Appointed on: 20 Apr 2026
Address: 4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England

MACKINNON, Joan Ailsa ACTIVE
Role: Director
Appointed on:
Country of Residence: England
Date of birth: September 1936
Address: 4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England

MORDAUNT, Alastair Nigel Charles ACTIVE
Role: Director
Appointed on: 04 Nov 2025
Country of Residence: England
Date of birth: January 1974
Address: 4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England

MORDAUNT, Helen Marie ACTIVE
Role: Director
Appointed on: 24 Nov 2021
Country of Residence: England
Date of birth: January 1974
Address: 4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England

MORDAUNT, Helen Marie RESIGNED
Role: Secretary
Appointed on: 07 Dec 2004
Resigned on: 24 Nov 2021
Address: 4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England

COSGROVE, Dominick RESIGNED
Role: Director
Appointed on:
Resigned on: 09 Jun 2026
Country of Residence: United Kingdom
Date of birth: September 1944
Address: 4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England

MACKINNON, David Michael RESIGNED
Role: Director
Appointed on:
Resigned on: 29 Aug 2021
Country of Residence: England
Date of birth: July 1931
Address: 4th Floor Fitzrovia House, 153-157 Cleveland Street, London, W1T 6QW, England

No charges found.

No PSC exemptions are recorded for this company.

Check whether the FCA Financial Services Register holds a record for this company.

The register is only searched when you ask, and a record is matched only by Companies House number.