- Company number
- 10660512
- Incorporated
- 9 Mar 20179 years trading
- Registered office
- Pembroke House, Llantarnam Park Way, Cwmbran, Torfaen, NP44 3AU
- Nature of business
- Construction of commercial buildings
K B Building Contractors Limited is a 9-year-old private limited company registered in Cwmbran, company number 10660512, one of 26 building contractors in Cwmbran. 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 up £105K (+48.6%) on the year before, to £322K.
- Net assets rose in 5 of 8 year-on-year comparisons on record.
- Current assets of £507K against £206K owed within a year: 2.5 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2018 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £322K | £333K | £507K | £206K | 2 |
| 31 Mar 2025 | £217K | £263K | £324K | £135K | 2 |
| 31 Mar 2024 | £267K | £317K | £373K | £117K | 2 |
| 31 Mar 2023 | £292K | £320K | £414K | £136K | 2 |
| 31 Mar 2022 | £234K | £274K | £397K | £184K | 2 |
| 31 Mar 2021 | £134K | £216K | £223K | £117K | 2 |
| 31 Mar 2020 | £130K | £213K | £221K | £123K | 2 |
| 31 Mar 2019 | £97K | £101K | £184K | £129K | 2 |
| 31 Mar 2018 | £101K | £44K | £197K | £120K | 2 |
Who runs and owns K B Building Contractors Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| C*** G*** | Director | Mar 2017 |
| N*** G*** | Director | Mar 2017 |
People with significant control (2)
Where K B Building Contractors Limited is registered
The registered office is in Cwmbran (NP44), in the Torfaen local authority area, Wales. Show NP44 3AU on a map.
Other trade companies in NP44
- Compliant Fire Safety Solutions LtdInstallers
- V&K Solutions LimitedCivil engineering
- Pure Clean by Nichola LtdCleaning companies
- Amsof LimitedPlumbers and heating engineers
- Marchant Home Solutions Ltd LtdBuilders
- True Level Concrete LtdBuilders
- A2Z Tech LimitedMachinery repair and installation
- Days Ventilation Solutions LtdPlumbers and heating engineers
Also registered at this address
21 other companies use the same registered office as K B Building Contractors Limited.
- Beaufort Property Development LimitedCivil engineering
- Building Bloc LimitedBuilders
- CJL Electrical Solutions LtdElectricians
- Crownhill Monmouthshire LimitedSpecialist contractors
- Cymru Glass & Glazing LimitedGlaziers
- D E Building Contractors LimitedSpecialist contractors
- D M O’Brien Construction LtdFinishing trades
- Flo-Screed UK LimitedFloor and wall tilers
- G M Plant Repairs LimitedMachinery repair and installation
- G.H.P Mechanical and Electrical LimitedFinishing trades
- L Golledge Roofing LimitedRoofers
- L&L Scaffolding Solutions LtdScaffolders
- LMB Plumbing & Heating LimitedPlumbers and heating engineers
- N G Construction LimitedFinishing trades
- R Senior & Son LimitedBuilders
- Remnant Developments LtdProperty developers
- Rival Scaffolding LtdScaffolders
- Robert Russell Property Services LimitedElectricians
- S J R Fleet Assist LtdMachinery repair and installation
- Sonas Holdings Hereford LimitedSpecialist contractors
- The Car Hotel LtdMotor traders
What happens if K B Building Contractors 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 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
- 10660512
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 March 2017 (9 years ago)
- Registered office
- Pembroke House, Llantarnam Park Way, Cwmbran, Torfaen, NP44 3AU
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 8 March 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 Cwmbran
Other active building contractors registered in Cwmbran.
- K J Building Developers Ltd2025
- Kavod Roofing & Construction Ltd2025
- Ljarvis Ltd2022
- LJM Building & Maintenance Ltd2026
- Marchant Home Solutions Ltd Ltd2026
- Mito Developments (SW) Ltd2018
- Olerenshaw Home Improvements Services Limited2023
- Pearwood Projects Ltd2021
All building contractors in Cwmbran · All trades in Cwmbran · Builders across the UK
Frequently asked questions
When are K B Building Contractors Limited's accounts due?
K B Building Contractors Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is K B Building Contractors Limited'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 K B Building Contractors Limited still trading?
K B Building Contractors 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 K B Building Contractors Limited do?
K B Building Contractors Limited is registered under Construction of commercial buildings (SIC 41201).
How old is K B Building Contractors Limited?
K B Building Contractors Limited was incorporated on 9 March 2017, 9 years ago.
Who runs K B Building Contractors Limited?
K B Building Contractors Limited has 2 active directors, the longest-serving appointed in Mar 2017. Their names and service addresses are on the Companies House register.
Who owns K B Building Contractors Limited?
2 people or companies have significant control of K B Building Contractors Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if K B Building Contractors 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 K B Building Contractors 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.