- Companies
- Civil engineering
- St Asaph
- Naj Developments Limited
Naj Developments Limited
- Company number
- 05487121
- Incorporated
- 21 Jun 200521 years trading
- Registered office
- Unit 32, Llys Edmund Prys, ST Asaph Business Park, St Asaph, Denbighshire, LL17 0JA
- Nature of business
- Construction of other civil engineering projects n.e.c.
Naj Developments Limited is a 21-year-old private limited company registered in St Asaph, company number 05487121, one of 18 civil engineering contractors in St Asaph. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £4,049 (-4.4%) on the year before, to £87K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £6,324 against £18K owed within a year: 0.3 times cover.
- 1 employee 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 |
|---|---|---|---|---|---|
| 31 Mar 2025 | £87K | £2,054 | £6,324 | £18K | 1 |
| 31 Mar 2024 | £91K | £1,723 | £2,653 | £14K | 1 |
| 31 Mar 2023 | £76K | £755 | £755 | £21K | 1 |
| 31 Mar 2022 | £73K | £809 | £6,165 | £24K | 1 |
| 31 Mar 2021 | £62K | £248 | £3,029 | £25K | 1 |
| 31 Mar 2020 | £62K | £4,563 | £114K | £38K | 1 |
| 31 Mar 2019 | £45K | £3,640 | £112K | £49K | |
| 31 Mar 2018 | £43K | £582 | £109K | £45K | |
| 31 Mar 2017 | £40K | £331 | £108K | £45K | |
| 31 Mar 2016 | £45K | £797 | £109K | £37K |
Where Naj Developments Limited is registered
The registered office is in St Asaph (LL17), in the Denbighshire local authority area, Wales. Show LL17 0JA on a map.
Other trade companies in LL17
- Neil's Wheels Tyre Services LtdMechanics and garages
- Baxter H&S LtdCivil engineering
- Corefortress Data Ltd.Civil engineering
- SSX Construction LtdBuilders
- Rotorix LtdCleaning companies
- Gwyn Evans CVR LimitedMechanics and garages
- Spencer Civils LimitedCivil engineering
- Optimal Home Clean LtdCleaning companies
Shared registered office
67 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 Naj Developments 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 05487121
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 June 2005 (21 years ago)
- Registered office
- Unit 32, Llys Edmund Prys, ST Asaph Business Park, St Asaph, Denbighshire, LL17 0JA
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 19 July 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in St Asaph
Other active civil engineering contractors registered in St Asaph.
- NH Contracting NW Ltd2016
- Rab Renewables Ltd2026
- Russ Fabrications Ltd2002
- Sam Roberts Ltd2023
- Sean Carr Lining Technology Limited2012
- Spencer Civils Limited2026
- Utility and Technical Solutions Limited2007
- Alwyn Jones Limited2001
All civil engineering contractors in St Asaph · All trades in St Asaph · Civil engineering across the UK
Frequently asked questions
When are Naj Developments Limited's accounts due?
Naj Developments Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Naj Developments Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Naj Developments Limited still trading?
Naj Developments 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 Naj Developments Limited do?
Naj Developments Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Naj Developments Limited?
Naj Developments Limited was incorporated on 21 June 2005, 21 years ago.
What is the penalty if Naj Developments 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 Naj Developments 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.