- Companies
- Civil engineering
- Downham Market
- MJB Building Contractors Limited
MJB Building Contractors Limited
- Company number
- 08504412
- Incorporated
- 25 Apr 201313 years trading
- Registered office
- 133 Broomhill, Downham Market, Norfolk, PE38 9QU
- Nature of business
- Construction of other civil engineering projects n.e.c.
MJB Building Contractors Limited is a 13-year-old private limited company registered in Downham Market, company number 08504412, one of 8 civil engineering contractors in Downham Market. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 up £16K (+77.5%) on the year before, to £36K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £85K against £58K owed within a year: 1.5 times cover.
- 2 employees 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 |
|---|---|---|---|---|---|
| 30 Apr 2025 | £36K | £69K | £85K | £58K | 2 |
| 30 Apr 2024 | £20K | £42K | £65K | £46K | 2 |
| 30 Apr 2023 | £1,365 | £38K | £79K | £73K | 2 |
| 30 Apr 2022 | £1,218 | £39K | £68K | £53K | 2 |
| 30 Apr 2021 | £1,573 | £89K | £98K | £53K | 2 |
| 30 Apr 2020 | £24K | £25K | £30K | £13K | 3 |
| 30 Apr 2019 | £59K | £87K | £99K | £49K | 2 |
| 30 Apr 2018 | £28K | £25K | £64K | £38K | 2 |
| 30 Apr 2017 | £1,015 | £13K | £30K | £30K | 2 |
| 30 Apr 2016 | £3,945 | £11K | £38K | £35K |
Where MJB Building Contractors Limited is registered
The registered office is in Downham Market (PE38), in the King's Lynn and West Norfolk local authority area, East of England. Show PE38 9QU on a map.
Other trade companies in PE38
- Maligator Holdings LtdMachinery repair and installation
- Apex Racetech LimitedMotor traders
- SF Civils LtdCivil engineering
- Heritage Plumbing Services LimitedPlumbers and heating engineers
- Boadicea Property Developments LimitedBuilders
- Grove & Co Developments LimitedBuilders
- Stampcrete UK Global LtdSpecialist contractors
- Fawcett & Lloyd Automotive Works LtdMechanics and garages
What happens if MJB 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 08504412
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 April 2013 (13 years ago)
- Registered office
- 133 Broomhill, Downham Market, Norfolk, PE38 9QU
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 25 April 2026
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 Downham Market
Other active civil engineering contractors registered in Downham Market.
- Rowe Management Limited1987
- SF Civils Ltd2026
- Vas Earthmoving Limited2022
- FC Construction (March) Limited2022
- Finesse Paving and Civil Engineering Limited2003
- Infra Risk Management Limited2025
- Lynwere Engineering Ltd2011
All civil engineering contractors in Downham Market · All trades in Downham Market · Civil engineering across the UK
Frequently asked questions
When are MJB Building Contractors Limited's accounts due?
MJB Building Contractors Limited's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is MJB Building Contractors Limited's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is MJB Building Contractors Limited still trading?
MJB 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 MJB Building Contractors Limited do?
MJB Building Contractors Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is MJB Building Contractors Limited?
MJB Building Contractors Limited was incorporated on 25 April 2013, 13 years ago.
What is the penalty if MJB 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 MJB 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.