- Companies
- Specialist contractors
- London
- London UK Builders Ltd
London UK Builders Ltd
- Company number
- 13871443
- Incorporated
- 25 Jan 20224 years trading
- Registered office
- 115 High Street, London, SE20 7DT
- Nature of business
- Other specialised construction activities n.e.c.
London UK Builders Ltd is a 4-year-old private limited company registered in London, company number 13871443, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £2,059 (+73.9%) on the year before, to £4,845.
- Current assets of £9,947 against £6,802 owed within a year: 1.5 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £4,845 | £9,947 | £6,802 | 1 | |
| 31 Jan 2024 | £2,786 | £6,279 | £4,143 | 1 | |
| 31 Jan 2023 | £1,201 | £1,921 | £1,720 | 1 |
Where London UK Builders Ltd is registered
The registered office is in London (SE20), in the Bromley local authority area, London. Show SE20 7DT on a map.
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What happens if London UK Builders 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2028 | 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
- 13871443
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 January 2022 (4 years ago)
- Registered office
- 115 High Street, London, SE20 7DT
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 24 January 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in London
Other active specialist construction companies registered in London.
- London Wall Systems Ltd2025
- London's Prestige Limited2024
- Longbridge Fire Doors Ltd2026
- Loolan Limited2026
- Lords Army Crew Limited2021
- Loro Group Ltd2025
- Los Pistoleros Ltd2017
- Losconstruction Ltd2026
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are London UK Builders Ltd's accounts due?
London UK Builders Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is London UK Builders Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is London UK Builders Ltd still trading?
London UK Builders 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 London UK Builders Ltd do?
London UK Builders Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is London UK Builders Ltd?
London UK Builders Ltd was incorporated on 25 January 2022, 4 years ago.
What is the penalty if London UK Builders 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 London UK Builders 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.