- Company number
- 12899008
- Incorporated
- 23 Sep 20206 years trading
- Registered office
- 42 Wensleydale Avenue, Ilford, IG5 0NA
- Nature of business
- Construction of domestic buildings; Other letting and operating of own or leased real estate; Management consultancy activities other than financial management
DNN UK Limited is a 6-year-old private limited company registered in Ilford, company number 12899008, one of 1,138 building contractors in Ilford. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £5,010 (+23%) on the year before, to £27K.
- Net assets rose in 4 of 4 year-on-year comparisons on record.
- Current assets of £66K against £45K owed within a year: 1.5 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £27K | £66K | £45K | 2 | |
| 30 Sep 2024 | £22K | £54K | £39K | 2 | |
| 30 Sep 2023 | £21K | £79K | £63K | 2 | |
| 30 Sep 2022 | £3,455 | £55K | £54K | 2 | |
| 30 Sep 2021 | £1,862 | £36K | £38K | 2 |
Where DNN UK Limited is registered
The registered office is in Ilford (IG5), in the Redbridge local authority area, London. Show IG5 0NA on a map.
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What happens if DNN UK 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 12899008
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 September 2020 (6 years ago)
- Registered office
- 42 Wensleydale Avenue, Ilford, IG5 0NA
- Nature of business
- Construction of domestic buildings (SIC 41202)
Other letting and operating of own or leased real estate (SIC 68209)
Management consultancy activities other than financial management (SIC 70229) - Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 11 September 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 Ilford
Other active building contractors registered in Ilford.
- Doaba Builders Limited2020
- Doaba UK Builders Limited2025
- Doleaexpert Limited2025
- DPP & Son Ltd2018
- DR Carpentry Construct Limited2017
- DR Groundworks (Kent) Limited2021
- Dreams Creation Limited2015
- DRG Steel Solution Limited2026
All building contractors in Ilford · All trades in Ilford · Builders across the UK
Frequently asked questions
When are DNN UK Limited's accounts due?
DNN UK Limited's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is DNN UK Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is DNN UK Limited still trading?
DNN UK 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 DNN UK Limited do?
DNN UK Limited is registered under Construction of domestic buildings (SIC 41202); Other letting and operating of own or leased real estate (SIC 68209); Management consultancy activities other than financial management (SIC 70229).
How old is DNN UK Limited?
DNN UK Limited was incorporated on 23 September 2020, 6 years ago.
What is the penalty if DNN UK 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 DNN UK 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.