- Company number
- 12416100
- Incorporated
- 21 Jan 20206 years trading
- Registered office
- 123 Eastern Avenue East, Romford, RM1 4SH
- Nature of business
- Construction of commercial buildings
UK 1 Construction Limited is a 6-year-old private limited company registered in Romford, company number 12416100, one of 911 building contractors in Romford. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 down £25K (-41.2%) on the year before, to £36K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £5,686 against £46K owed within a year: 0.1 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £36K | £11K | £5,686 | £46K | 3 |
| 31 Dec 2024 | £61K | £6,742 | £21K | £41K | 3 |
| 31 Dec 2023 | £40K | £14K | £5,209 | £35K | 3 |
| 31 Dec 2022 | £3,416 | £10K | £36K | £39K | 2 |
| 31 Dec 2021 | £20K | £12K | £37K | £18K | 2 |
| 31 Dec 2020 | £11K | £51K | £39K | 2 |
Where UK 1 Construction Limited is registered
The registered office is in Romford (RM1), in the Havering local authority area, London. Show RM1 4SH on a map.
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Also registered at this address
1 other company uses the same registered office as UK 1 Construction Limited.
- UK1 Design and Build LtdBuilders
What happens if UK 1 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 12416100
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 January 2020 (6 years ago)
- Registered office
- 123 Eastern Avenue East, Romford, RM1 4SH
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 20 January 2026
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 Romford
Other active building contractors registered in Romford.
- UK Gold Corporation Ltd2018
- UK Resolve Ltd2023
- UK Specialist Rendering Services Ltd2024
- UK1 Design and Build Ltd2025
- Urban Dryliner Ltd2014
- Us Construction Ltd2014
- V & E Builders Ltd2025
- V Sutaj Construction Limited2018
All building contractors in Romford · All trades in Romford · Builders across the UK
Frequently asked questions
When are UK 1 Construction Limited's accounts due?
UK 1 Construction Limited's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is UK 1 Construction Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is UK 1 Construction Limited still trading?
UK 1 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 UK 1 Construction Limited do?
UK 1 Construction Limited is registered under Construction of commercial buildings (SIC 41201).
How old is UK 1 Construction Limited?
UK 1 Construction Limited was incorporated on 21 January 2020, 6 years ago.
What is the penalty if UK 1 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 UK 1 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.