- Companies
- Specialist contractors
- Luton
- William UK Construction Limited
William UK Construction Limited
- Company number
- 10978803
- Incorporated
- 25 Sep 20179 years trading
- Registered office
- 70 Lewsey Road, Luton, LU4 0ER
- Nature of business
- Other specialised construction activities n.e.c.
William UK Construction Limited is a 9-year-old private limited company registered in Luton, company number 10978803, one of 195 specialist construction companies in Luton. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £293K (+20.7%) on the year before, to £1.7M.
- Net assets rose in 7 of 7 year-on-year comparisons on record.
- Current assets of £3.2M against £1.7M owed within a year: 1.9 times cover.
- 47 employees on average, up from 45 the year before.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £1.7M | £3.2M | £1.7M | 47 | |
| 30 Nov 2024 | £1.4M | £569K | £2.6M | £1.4M | 45 |
| 30 Nov 2023 | £642K | £24K | £1.2M | £680K | 0 |
| 30 Nov 2022 | £544K | £277K | £1M | £498K | 42 |
| 30 Nov 2021 | £451K | £546K | £703K | £283K | 28 |
| 30 Nov 2020 | £96K | £372K | £270K | 15 | |
| 31 Aug 2019 | £10K | £75K | £38K | ||
| 31 Aug 2018 | £203 | £28K | £41K |
Who runs and owns William UK Construction Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| L*** S*** | Director | Sep 2017 |
Person with significant control
Where William UK Construction Limited is registered
The registered office is in Luton (LU4), in the Luton local authority area, East of England. Show LU4 0ER on a map.
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What happens if William UK Construction Limited 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 10978803
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 September 2017 (9 years ago)
- Registered office
- 70 Lewsey Road, Luton, LU4 0ER
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 10 February 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 Luton
Other active specialist construction companies registered in Luton.
- A & S Sopa Construction Limited2017
- Aak Contractors Ltd2026
- Abu Construction Ltd2018
- Ace Pre Construction Services Ltd2021
- Adds Construction Ltd2018
- Adept Home Maintenance Ltd2026
- Ak Site Force Ltd2026
- Al Haq Solutions Ltd2023
All specialist construction companies in Luton · All trades in Luton · Specialist contractors across the UK
Frequently asked questions
When are William UK Construction Limited's accounts due?
William UK Construction Limited's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is William UK Construction Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is William UK Construction Limited still trading?
William UK Construction Limited 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 William UK Construction Limited do?
William UK Construction Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is William UK Construction Limited?
William UK Construction Limited was incorporated on 25 September 2017, 9 years ago.
Who runs William UK Construction Limited?
William UK Construction Limited has 1 active director, the longest-serving appointed in Sep 2017. Their names and service addresses are on the Companies House register.
Who owns William UK Construction Limited?
One person or company has significant control of William UK Construction Limited: an individual (owns 75% or more of the shares).
What is the penalty if William UK Construction Limited 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 William UK Construction Limited 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.