- Companies
- Civil engineering
- Longfield
- JSB Mini Diggers Ltd
JSB Mini Diggers Ltd
- Company number
- 06004073
- Incorporated
- 21 Nov 200619 years trading
- Registered office
- Oak Lodge, Church Road, Hartley, Longfield, Kent, DA3 8DY
- Nature of business
- Construction of other civil engineering projects n.e.c.; Renting and leasing of construction and civil engineering machinery and equipment
JSB Mini Diggers Ltd is a 19-year-old private limited company registered in Longfield, company number 06004073, one of 9 civil engineering contractors in Longfield. 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 up £17K (+729.9%) on the year before, to £20K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £15K against £5,893 owed within a year: 2.5 times cover.
- 2 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 | £20K | £15K | £5,893 | 2 | |
| 31 Mar 2024 | £2,365 | £13K | £599 | 2 | |
| 31 Mar 2023 | £15K | £7,876 | £0 | 2 | |
| 31 Mar 2022 | £27K | £1,872 | £2,653 | 3 | |
| 31 Mar 2021 | £20K | £13K | £11K | 3 | |
| 31 Mar 2020 | £18K | £2,830 | £300 | 2 | |
| 31 Mar 2019 | £22K | £9,456 | £4,186 | ||
| 30 Sep 2017 | £210K | £95K | £259K | £78K | |
| 30 Sep 2016 | £235K | £81K | £366K | £155K | |
| 30 Sep 2015 | £177K | £27K | £238K | £85K |
Where JSB Mini Diggers Ltd is registered
The registered office is in Longfield (DA3), in the Sevenoaks local authority area, South East. Show DA3 8DY on a map.
Other trade companies in DA3
- Heat Exchangers LtdPlumbers and heating engineers
- Ohq Management LimitedFinishing trades
- J Roe Scaffolding LimitedScaffolders
- A T Installations (2026) LimitedPlumbers and heating engineers
- Interlock Plumbing & Heating LimitedPlumbers and heating engineers
- Window Medic Kent LimitedJoiners and carpenters
- BMDZ Group LtdCleaning companies
- Thain Air Conditioning Services LtdPlumbers and heating engineers
Also registered at this address
1 other company uses the same registered office as JSB Mini Diggers Ltd.
- Briah LimitedCivil engineering
What happens if JSB Mini Diggers 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
- 06004073
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 November 2006 (19 years ago)
- Registered office
- Oak Lodge, Church Road, Hartley, Longfield, Kent, DA3 8DY
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Renting and leasing of construction and civil engineering machinery and equipment (SIC 77320) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 3 June 2026
- Previous names
- Shera Construction Limited (until 30 Aug 2018)
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 Longfield
Other active civil engineering contractors registered in Longfield.
- Right Management Solutions Ltd2019
- Springhead Construction Limited2013
- Stockmill Developments Limited2005
- Unigro Limited1999
- Bam Traffic Management Ltd2024
- Briah Limited2017
- Darenth Construction Limited1984
- Johal Construction Limited2001
All civil engineering contractors in Longfield · All trades in Longfield · Civil engineering across the UK
Frequently asked questions
When are JSB Mini Diggers Ltd's accounts due?
JSB Mini Diggers 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 JSB Mini Diggers 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 JSB Mini Diggers Ltd still trading?
JSB Mini Diggers 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 JSB Mini Diggers Ltd do?
JSB Mini Diggers Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Renting and leasing of construction and civil engineering machinery and equipment (SIC 77320).
How old is JSB Mini Diggers Ltd?
JSB Mini Diggers Ltd was incorporated on 21 November 2006, 19 years ago.
What is the penalty if JSB Mini Diggers 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 JSB Mini Diggers 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.