- Companies
- Civil engineering
- Darlington
- Dec Groundworks Ltd
Dec Groundworks Ltd
- Company number
- 08172215
- Incorporated
- 8 Aug 201214 years trading
- Registered office
- 43 Coniscliffe Road, Darlington, Co Durham, DL3 7EH
- Nature of business
- Construction of other civil engineering projects n.e.c.
Dec Groundworks Ltd is a 14-year-old private limited company registered in Darlington, company number 08172215, one of 42 civil engineering contractors in Darlington. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 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 £39K (-61.7%) on the year before, to £24K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- 3 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £24K | £0 | £24K | £0 | 3 |
| 31 Oct 2024 | £63K | £15K | £35K | £44K | 3 |
| 31 Oct 2023 | £58K | £28K | £42K | £33K | 3 |
| 31 Oct 2022 | £77K | £28K | £64K | £41K | 3 |
| 31 Oct 2021 | £76K | £22K | £53K | £25K | 3 |
| 31 Oct 2020 | £60K | £63K | £106K | £56K | 3 |
| 31 Oct 2019 | £70K | £53K | £77K | £58K | 3 |
| 31 Oct 2018 | £52K | £41K | £63K | £56K | 1 |
| 31 Oct 2017 | £38K | £31K | £52K | £59K | 1 |
| 31 Oct 2016 | £34K | £23K | £58K | £72K |
Where Dec Groundworks Ltd is registered
The registered office is in Darlington (DL3), in the Darlington local authority area, North East. Show DL3 7EH on a map.
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- Frontier Energy Services LtdPlumbers and heating engineers
- Andrew Morgan Joinery LtdJoiners and carpenters
- Aburns Engineering LtdBuilders
Shared registered office
32 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Dec Groundworks 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 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 08172215
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 August 2012 (14 years ago)
- Registered office
- 43 Coniscliffe Road, Darlington, Co Durham, DL3 7EH
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 8 August 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 Darlington
Other active civil engineering contractors registered in Darlington.
- DS Suction Excavation Ltd2025
- Euro Surface Tech Ltd2011
- Focus Hse Ltd2024
- G&K Build Ltd2025
- GL Surveys Limited2014
- Grace Site Services Ltd2013
- Highway Road Repairs Ltd2026
- Highways Road Seal Ltd2025
All civil engineering contractors in Darlington · All trades in Darlington · Civil engineering across the UK
Frequently asked questions
When are Dec Groundworks Ltd's accounts due?
Dec Groundworks Ltd's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is Dec Groundworks Ltd's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Dec Groundworks Ltd still trading?
Dec Groundworks 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 Dec Groundworks Ltd do?
Dec Groundworks Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Dec Groundworks Ltd?
Dec Groundworks Ltd was incorporated on 8 August 2012, 14 years ago.
What is the penalty if Dec Groundworks 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 Dec Groundworks 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.