- Companies
- Builders
- Carmarthen
- NWN Ltd
NWN Ltd
- Company number
- 05916730
- Incorporated
- 25 Aug 200620 years trading
- Registered office
- Llys Deri, Parc Pensarn, Carmarthen, SA31 2NF
- Nature of business
- Construction of domestic buildings
NWN Ltd is a 20-year-old private limited company registered in Carmarthen, company number 05916730, one of 50 building contractors in Carmarthen. 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 £1,474 (-1.6%) on the year before, to £92K.
- Net assets rose in 0 of 9 year-on-year comparisons on record.
- Current assets of £582K against £492K owed within a year: 1.2 times cover.
- 4 employees on average during the year.
- Balance sheets on record for 10 years, 2015 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £92K | £724 | £582K | £492K | 4 |
| 31 Mar 2024 | £93K | £724 | £582K | £491K | 4 |
| 30 Sep 2022 | £95K | £355 | £582K | £490K | 4 |
| 30 Sep 2021 | £97K | £1,839 | £581K | £489K | 0 |
| 30 Sep 2020 | £98K | £2,212 | £580K | £487K | 0 |
| 30 Sep 2019 | £101K | £4,739 | £571K | £477K | 0 |
| 30 Sep 2018 | £103K | £6,734 | £341K | £246K | |
| 30 Sep 2017 | £106K | £10K | £216K | £121K | |
| 30 Sep 2016 | £110K | £18K | £249K | £152K | |
| 30 Sep 2015 | £112K | £7,923 | £199K | £103K |
Where NWN Ltd is registered
The registered office is in Carmarthen (SA31), in the Carmarthenshire local authority area, Wales. Show SA31 2NF on a map.
Other trade companies in SA31
- Revworks Studio LtdMechanics and garages
- Celf Construction LimitedPlasterers
- DCM Plant Hire LimitedSpecialist contractors
- M Owen Construction LtdBuilders
- Tce Construction LtdBuilders
- LW Pro Build LtdBuilders
- PW Solar LtdElectricians
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Also registered at this address
21 other companies use the same registered office as NWN Ltd.
- Chaps (HPS) Wales LtdPlumbers and heating engineers
- Copefield Construction LimitedCivil engineering
- D Melvyn Rees & Son LtdMechanics and garages
- Dorian Morgan LimitedMechanics and garages
- Down 2 Earth Property Solutions LimitedElectricians
- Felin Developments LimitedProperty developers
- Garej Gellynewydd LtdMechanics and garages
- JHC Building and Maintenance Solutions LimitedFinishing trades
- John Morgan Autoparts LimitedMotor traders
- M Owen Construction LtdBuilders
- Maesiago LimitedProperty developers
- Ram Trucks(UK) LimitedMotor traders
- Redfield Renovations LtdProperty developers
- Richards & Deakin Developments LtdProperty developers
- Rob Thomas LtdLandscapers and gardeners
- SS Goddard LimitedSpecialist contractors
- Steel Fabricators (Wales) LtdBuilders
- Thomas Groundwork’S LimitedBuilders
- Time for You West Wales LtdCleaning companies
- Uberwagon LtdMechanics and garages
- XRG Installations LimitedElectricians
What happens if NWN 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 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
- 05916730
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 August 2006 (20 years ago)
- Registered office
- Llys Deri, Parc Pensarn, Carmarthen, SA31 2NF
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 25 August 2025
- Charges (mortgages)
- 3 outstanding of 3 registered
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 Carmarthen
Other active building contractors registered in Carmarthen.
- Owens Carpentry Ltd2025
- P H James Developments Ltd2022
- Parry and Son Builders (PSB) Ltd2023
- Phoenix Properties (Wales) Limited2014
- Rap Construction Services Limited2005
- Rosslyn Park Ltd2016
- RSJS Renovations Ltd2026
- S & A Developments (Cymru) Limited2013
All building contractors in Carmarthen · All trades in Carmarthen · Builders across the UK
Frequently asked questions
When are NWN Ltd's accounts due?
NWN Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is NWN Ltd'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 NWN Ltd still trading?
NWN 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 NWN Ltd do?
NWN Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is NWN Ltd?
NWN Ltd was incorporated on 25 August 2006, 20 years ago.
What is the penalty if NWN 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 NWN 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.