- Company number
- 16081044
- Incorporated
- 14 Nov 20241 year trading
- Registered office
- 153B Clapton Common, London, E5 9AE
- Nature of business
- Construction of domestic buildings; Other building completion and finishing; Other specialised construction activities n.e.c.
Lockmat Ltd is a 1-year-old private limited company registered in London, company number 16081044, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Lockmat LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Financial snapshot, 2026
From the balance sheet at 31 March 2026, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where Lockmat Ltd is registered
The registered office is in London (E5), in the Hackney local authority area, London. Show E5 9AE on a map.
Other trade companies in E5
- Essa Volt Group LtdElectricians
- Arctic Roof & Exterior Cleaning LtdCleaning companies
- Panda Car Wash LtdCleaning companies
- Shekefe Services Limited LtdCleaning companies
- Homelara LtdCleaning companies
- Titan Build London LtdBuilders
- Nuquari Cleaning LtdCleaning companies
- Lureva Cleaning Company LimitedCleaning companies
Also registered at this address
2 other companies use the same registered office as Lockmat Ltd.
- Castles Maintenance LtdBuilders
- Springfield 2024 LimitedBuilders
What happens if Lockmat Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 16081044
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 November 2024 (1 year ago)
- Registered office
- 153B Clapton Common, London, E5 9AE
- Nature of business
- Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 13 November 2025
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in London
Other active building contractors registered in London.
- Loema Construction & Design Ltd2026
- Loft & Lantern Limited2022
- Loft Carpentry Ltd2023
- Loft Conversion Company London Limited2018
- Loft Conversion Near Me Limited2025
- Loft Inspectors Limited2020
- Loftnix Developments Ltd2025
- Lofts & Extensions London Ltd2025
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Lockmat Ltd's accounts due?
Lockmat Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Lockmat Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Lockmat Ltd still trading?
Lockmat Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Lockmat Ltd do?
Lockmat Ltd is registered under Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390); Other specialised construction activities n.e.c. (SIC 43999).
How old is Lockmat Ltd?
Lockmat Ltd was incorporated on 14 November 2024, 1 year ago.
What is the penalty if Lockmat Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Lockmat Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.