- Companies
- Installers
- Exeter
- DN Utilities Southwest Limited
DN Utilities Southwest Limited
- Company number
- 17049396
- Incorporated
- 23 Feb 2026
- Registered office
- 14 - 15 Southernhay West, Exeter, EX1 1PL
- Nature of business
- Other construction installation
DN Utilities Southwest Limited is a newly incorporated private limited company registered in Exeter, company number 17049396, one of 55 installation companies (insulation, lifts, shutters and similar) in Exeter. Its next accounts are due at Companies House on 23 November 2027, and its first CT600 is due at HMRC on 22 February 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where DN Utilities Southwest Limited is registered
The registered office is in Exeter (EX1), in the East Devon local authority area, England. Show EX1 1PL on a map.
Other trade companies in EX1
- Mor Edrin (Exeter) LimitedProperty developers
- Smart Doors and Windows LtdGlaziers
- CJW Garden Services LtdLandscapers and gardeners
- CW Auto Services LtdMechanics and garages
- Saltash Tyres & Auto Care LtdMechanics and garages
- South West Damp & Cavity Specialists LtdInstallers
- Weatherprotect Roofing LtdRoofers
- Urban Centric (Friary House) LtdProperty developers
Shared registered office
192 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if DN Utilities Southwest 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 23 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 24 Nov 2027 to 23 Dec 2027 | £150 |
| 1 to 3 months late | 24 Dec 2027 to 23 Feb 2028 | £375 |
| 3 to 6 months late | 24 Feb 2028 to 23 May 2028 | £750 |
| More than 6 months late | From 24 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 2029 | 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
- 17049396
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 February 2026
- Registered office
- 14 - 15 Southernhay West, Exeter, EX1 1PL
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Exeter
Other active installation companies (insulation, lifts, shutters and similar) registered in Exeter.
- DNS Construction Solutions Limited2023
- Energy Systems (SW) Limited2006
- Estuary Construction (Devon) Limited2019
- Exe Home Improvements Ltd2024
- Exeter Bricklaying Limited2011
- Exeter Kitchen Fitter Limited2012
- Fine Lines SW Limited2024
- Finishings SW Ltd2026
All installation companies (insulation, lifts, shutters and similar) in Exeter · All trades in Exeter · Installers across the UK
Frequently asked questions
When are DN Utilities Southwest Limited's accounts due?
DN Utilities Southwest Limited's next accounts are due at Companies House by 23 November 2027 (in 406 days), covering the period to 28 February 2027.
When is DN Utilities Southwest Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 22 February 2027, due by 22 February 2028, and one for the period to 28 February 2027, due by 28 February 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is DN Utilities Southwest Limited still trading?
DN Utilities Southwest 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 DN Utilities Southwest Limited do?
DN Utilities Southwest Limited is registered under Other construction installation (SIC 43290).
How old is DN Utilities Southwest Limited?
DN Utilities Southwest Limited was incorporated on 23 February 2026, less than a year ago.
What is the penalty if DN Utilities Southwest 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 DN Utilities Southwest 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.