- Companies
- Builders
- Wallingford
- C.N. Building Limited
C.N. Building Limited
- Company number
- 04624673
- Incorporated
- 23 Dec 200223 years trading
- Registered office
- 23 Station Road, Wallingford, Oxfordshire, OX10 0JX
- Nature of business
- Construction of domestic buildings
C.N. Building Limited is a 23-year-old private limited company registered in Wallingford, company number 04624673, one of 30 building contractors in Wallingford. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £22K (-94.7%) on the year before, to £1,268.
- Net assets rose in 2 of 9 year-on-year comparisons on record.
- Current assets of £47K against £55K owed within a year: 0.9 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £1,268 | £47K | £55K | 3 | |
| 31 Jan 2025 | £24K | £51K | £37K | 3 | |
| 31 Jan 2024 | £52K | £104K | £63K | 3 | |
| 31 Jan 2023 | £20K | £44K | £39K | 3 | |
| 31 Jan 2022 | £40K | £60K | £38K | 4 | |
| 31 Jan 2021 | £42K | £80K | £41K | 4 | |
| 31 Jan 2020 | £48K | £95K | £52K | 4 | |
| 31 Jan 2019 | £68K | £119K | £54K | 4 | |
| 31 Jan 2018 | £58K | £79K | £24K | 3 | |
| 31 Jan 2017 | £92K | £150K |
Where C.N. Building Limited is registered
The registered office is in Wallingford (OX10), in the South Oxfordshire local authority area, South East. Show OX10 0JX on a map.
Other trade companies in OX10
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- Readyset Property Services LtdCleaning companies
- Studio Lennox Gardens LimitedProperty developers
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- Valx LimitedMechanics and garages
- D&D Professional Cleaning Service LtdCleaning companies
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What happens if C.N. Building 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 04624673
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 December 2002 (23 years ago)
- Registered office
- 23 Station Road, Wallingford, Oxfordshire, OX10 0JX
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 17 December 2025
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 Wallingford
Other active building contractors registered in Wallingford.
- Camfield Construction Ltd2023
- Centipede Construction Limited2012
- Claire Morley Ltd2018
- Collins and Lane Builders Ltd2017
- CTB Construction Group Ltd2025
- CZ Bespoke Carpentry Ltd2026
- Esi Building & Property Services Limited2025
- Fathers Construction Ltd2021
All building contractors in Wallingford · All trades in Wallingford · Builders across the UK
Frequently asked questions
When are C.N. Building Limited's accounts due?
C.N. Building Limited's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is C.N. Building Limited's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is C.N. Building Limited still trading?
C.N. Building 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 C.N. Building Limited do?
C.N. Building Limited is registered under Construction of domestic buildings (SIC 41202).
How old is C.N. Building Limited?
C.N. Building Limited was incorporated on 23 December 2002, 23 years ago.
What is the penalty if C.N. Building 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 C.N. Building 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.