- Companies
- Civil engineering
- Pontypridd
- Dee Plant Limited
Dee Plant Limited
- Company number
- 05304063
- Incorporated
- 3 Dec 200421 years trading
- Registered office
- 14 Gelliwastad Road, Pontypridd, Rhondda Cynon Taff, CF37 2BW
- Nature of business
- Construction of roads and motorways; Site preparation
Dee Plant Limited is a 21-year-old private limited company registered in Pontypridd, company number 05304063, one of 26 civil engineering contractors in Pontypridd. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £4,734 (+1%) on the year before, to £497K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £408K against £249K owed within a year: 1.6 times cover.
- 10 employees on average, down from 11 the year before.
- 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 |
|---|---|---|---|---|---|
| 31 Dec 2025 | £497K | £359K | £408K | £249K | 10 |
| 31 Dec 2024 | £493K | £205K | £413K | £234K | 11 |
| 31 Dec 2023 | £504K | £325K | £367K | £211K | 12 |
| 31 Dec 2022 | £525K | £277K | £361K | £253K | 13 |
| 31 Dec 2021 | £370K | £123K | £185K | £206K | 12 |
| 31 Dec 2020 | £441K | £196K | £235K | £262K | 14 |
| 31 Dec 2019 | £246K | £138K | £212K | £220K | 12 |
| 31 Dec 2018 | £191K | £23K | £162K | £236K | 12 |
| 31 Dec 2017 | £190K | £57K | £95K | £182K | 11 |
| 31 Dec 2016 | £203K | £155K | £183K | £260K | 11 |
Public contracts won
Dee Plant Limited has one public sector contract award on record (2023). Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Carmarthenshire County Council | South West Wales Regional Civil Engineering Contractors Framework | Ceiling, not shown | 6 Feb 2023 |
Where Dee Plant Limited is registered
The registered office is in Pontypridd (CF37), in the Rhondda Cynon Taf local authority area, Wales. Show CF37 2BW on a map.
Other trade companies in CF37
- Hamilton Motor Group LtdMotor traders
- Pencoed Building Services LtdSpecialist contractors
- Pyo Property Developments LimitedBuilders
- Great Choice Leisure Vehicles LimitedMotor traders
- C2 Interior Contractors LtdBuilders
- Carpet Mine LtdFinishing trades
- LCH4RP LtdProperty developers
- LCH4Est LtdProperty developers
Also registered at this address
2 other companies use the same registered office as Dee Plant Limited.
- Belmount Products LtdFinishing trades
- MLS Building & Construction LimitedProperty developers
What happens if Dee Plant 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 05304063
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 December 2004 (21 years ago)
- Registered office
- 14 Gelliwastad Road, Pontypridd, Rhondda Cynon Taff, CF37 2BW
- Nature of business
- Construction of roads and motorways (SIC 42110)
Site preparation (SIC 43120) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 18 April 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
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 Pontypridd
Other active civil engineering contractors registered in Pontypridd.
- Emtage Rail Ltd2023
- Faith Rail Limited2020
- Flowline Civil Engineering Ltd1995
- Gareth Lawrence Rail Ltd2017
- HGC Civil Engineering South Wales Ltd2026
- Intrado Ltd2006
- Isource Rail Engineering Ltd2019
- LG Networks & Civils Ltd2020
All civil engineering contractors in Pontypridd · All trades in Pontypridd · Civil engineering across the UK
Frequently asked questions
When are Dee Plant Limited's accounts due?
Dee Plant Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Dee Plant Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Dee Plant Limited still trading?
Dee Plant 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 Dee Plant Limited do?
Dee Plant Limited is registered under Construction of roads and motorways (SIC 42110); Site preparation (SIC 43120).
How old is Dee Plant Limited?
Dee Plant Limited was incorporated on 3 December 2004, 21 years ago.
Has Dee Plant Limited won public sector contracts?
Yes. Dee Plant Limited has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Carmarthenshire County Council.
What is the penalty if Dee Plant 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 Dee Plant 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.