- Companies
- Builders
- Caerphilly
- N Prosser Building Maintenance Ltd
N Prosser Building Maintenance Ltd
- Company number
- 11243597
- Incorporated
- 9 Mar 20188 years trading
- Registered office
- 14 Southern Street, Caerphilly, CF83 1LH
- Nature of business
- Construction of domestic buildings; Other building completion and finishing
N Prosser Building Maintenance Ltd is a 8-year-old private limited company registered in Caerphilly, company number 11243597, one of 37 building contractors in Caerphilly. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £15K (-14.1%) on the year before, to £89K.
- Net assets rose in 6 of 7 year-on-year comparisons on record.
- Current assets of £112K against £33K owed within a year: 3.5 times cover.
- 5 employees on average, up from 4 the year before.
- Balance sheets on record for 8 years, 2019 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £89K | £111K | £112K | £33K | 5 |
| 31 Mar 2025 | £104K | £154K | £156K | £63K | 4 |
| 31 Mar 2024 | £84K | £49K | £200K | £129K | 4 |
| 31 Mar 2023 | £3,575 | £73K | £74K | £72K | 3 |
| 31 Mar 2022 | £215 | £56K | £69K | £70K | 2 |
| 31 Mar 2021 | £189 | £34K | £82K | £83K | 2 |
| 31 Mar 2020 | £106 | £26K | £42K | £43K | 2 |
| 31 Mar 2019 | -£42K | £637 | £43K | 1 |
Where N Prosser Building Maintenance Ltd is registered
The registered office is in Caerphilly (CF83), in the Caerphilly local authority area, Wales. Show CF83 1LH on a map.
Other trade companies in CF83
- Owen PM LimitedBuilders
- Ecamscymru LtdMachinery repair and installation
- Bee Green Plumbing Solutions LtdPlumbers and heating engineers
- Tyga Constuction LimitedBuilders
- Grip Rip MX LtdMotor traders
- Da' Grave LtdRepair services
- First Class Cleaning Solutions LtdCleaning companies
- Vehicle Accident Repairs Solutions LtdMotor traders
What happens if N Prosser Building Maintenance 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 11243597
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 March 2018 (8 years ago)
- Registered office
- 14 Southern Street, Caerphilly, CF83 1LH
- Nature of business
- Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 3 August 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 Caerphilly
Other active building contractors registered in Caerphilly.
- Nelson Fields Limited2016
- Owen PM Limited2026
- Parry Construction & Labour Limited2025
- PJS Screeding Services Limited2013
- Powells Construction Limited2018
- Ronald Dowling Floor Screeding Limited2004
- Rowland Ward Services Limited2025
- RWC Quality Carpentry Ltd Limited2025
All building contractors in Caerphilly · All trades in Caerphilly · Builders across the UK
Frequently asked questions
When are N Prosser Building Maintenance Ltd's accounts due?
N Prosser Building Maintenance Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is N Prosser Building Maintenance Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is N Prosser Building Maintenance Ltd still trading?
N Prosser Building Maintenance Ltd 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 N Prosser Building Maintenance Ltd do?
N Prosser Building Maintenance Ltd is registered under Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390).
How old is N Prosser Building Maintenance Ltd?
N Prosser Building Maintenance Ltd was incorporated on 9 March 2018, 8 years ago.
What is the penalty if N Prosser Building Maintenance 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 N Prosser Building Maintenance Ltd 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.