- Company number
- NI628453
- Incorporated
- 30 Dec 201411 years trading
- Registered office
- 3 Wellington Park, Belfast, BT9 6DJ
- Nature of business
- Construction of domestic buildings
Unit Construction Ltd is a 11-year-old private limited company registered in Belfast, company number NI628453, one of 213 building contractors in Belfast. Its next accounts are due at Companies House on 5 January 2027, and the CT600 for the period to 5 April 2026 is due at HMRC on 5 April 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 £2,292 (-5.9%) on the year before, to £36K.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £158K against £20K owed within a year: 8.0 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 5 Apr 2025 | £36K | £140K | £158K | £20K | 2 |
| 5 Apr 2024 | £39K | £148K | £166K | £29K | 2 |
| 5 Apr 2023 | £40K | £101K | £37K | 2 | |
| 5 Apr 2022 | £80K | £209K | £32K | 2 | |
| 5 Apr 2021 | £143K | £407K | £41K | 2 | |
| 5 Apr 2020 | £140K | £322K | £322K | £23K | 2 |
| 5 Apr 2019 | £196K | £333K | £337K | £27K | |
| 5 Apr 2018 | £197K | £336K | £336K | £69K | |
| 5 Apr 2017 | £66K | £107K | £279K | £144K | |
| 5 Apr 2016 | -£2,129 | £40K | £197K | £132K |
Where Unit Construction Ltd is registered
The registered office is in Belfast (BT9), in the Belfast local authority area, Northern Ireland. Show BT9 6DJ on a map.
Other trade companies in BT9
- Carnkilly Estates LimitedProperty developers
- Roux Flow and Co LtdPlumbers and heating engineers
- Ormeau Parkview LtdProperty developers
- ZK Auto LimitedMotor traders
- Alina Rista Motors LtdMotor traders
- Andrews Sheet Metal Works LtdPlumbers and heating engineers
- Carbtuneshop LtdMotor traders
- Red Compliance Electrical Services LimitedElectricians
Also registered at this address
7 other companies use the same registered office as Unit Construction Ltd.
- Egreen Renewables LtdMachinery repair and installation
- J&L Formwork LtdCivil engineering
- Little Lodges LtdBuilders
- McKenzies Construction LimitedBuilders
- Pon Developments LtdBuilders
- Red Compliance Electrical Services LimitedElectricians
- Zuttle Holdings LtdFacilities management
What happens if Unit Construction 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 5 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 6 Jan 2027 to 5 Feb 2027 | £150 |
| 1 to 3 months late | 6 Feb 2027 to 5 Apr 2027 | £375 |
| 3 to 6 months late | 6 Apr 2027 to 5 Jul 2027 | £750 |
| More than 6 months late | From 6 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 6 Apr 2027 | £200 |
| 3 months late | 5 Jul 2027 | another £200 |
| 6 months late | 5 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 5 Apr 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
- NI628453
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 December 2014 (11 years ago)
- Registered office
- 3 Wellington Park, Belfast, BT9 6DJ
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 5 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 5 April 2025
- Last confirmation statement
- 28 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 Belfast
Other active building contractors registered in Belfast.
- Valleyside Construction Limited2010
- Valleyside Developments Ltd2021
- Vanon Properties Limited2005
- Visual Construction Ltd2025
- WGS New Developments Ltd2015
- WK Homes Limited2015
- WM Construction Group Ltd2025
- A-Star Carpentry & Joinery Ltd2023
All building contractors in Belfast · All trades in Belfast · Builders across the UK
Frequently asked questions
When are Unit Construction Ltd's accounts due?
Unit Construction Ltd's next accounts are due at Companies House by 5 January 2027 (in 85 days), covering the period to 5 April 2026.
When is Unit Construction Ltd's CT600 due?
The CT600 for the period to 5 April 2026 is due at HMRC by 5 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 6 January 2027.
Is Unit Construction Ltd still trading?
Unit Construction Ltd is listed as active on the Companies House register (checked 12 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 Unit Construction Ltd do?
Unit Construction Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Unit Construction Ltd?
Unit Construction Ltd was incorporated on 30 December 2014, 11 years ago.
What is the penalty if Unit Construction 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 Unit Construction Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.