- Companies
- Specialist contractors
- Doncaster
- JKN Renewables Ltd.
JKN Renewables Ltd.
- Company number
- 07929475
- Incorporated
- 31 Jan 201214 years trading
- Registered office
- Five Lane Ends Farm West End Road, Epworth, Doncaster, DN9 1LB
- Nature of business
- Other specialised construction activities n.e.c.
JKN Renewables Ltd. is a 14-year-old private limited company registered in Doncaster, company number 07929475, one of 187 specialist construction companies in Doncaster. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £81K (+33.2%) on the year before, to £325K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £427K against £144K owed within a year: 3.0 times cover.
- 10 employees on average, up from 8 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 Jan 2025 | £325K | £198K | £427K | £144K | 10 |
| 31 Jan 2024 | £244K | £181K | £343K | £103K | 8 |
| 31 Jan 2023 | £186K | £34K | £373K | £168K | 6 |
| 31 Jan 2022 | £189K | £63K | £383K | £155K | 6 |
| 31 Jan 2021 | £48K | £27K | £247K | £124K | 7 |
| 31 Jan 2020 | £22K | £32K | £174K | £127K | 9 |
| 31 Jan 2019 | £10K | £133K | £113K | 8 | |
| 31 Jan 2018 | £14K | £165K | £145K | 8 | |
| 31 Jan 2017 | £7,450 | £277K | £250K | 7 | |
| 31 Jan 2016 | £6,059 | £165K | £144K |
Public contracts won
JKN Renewables Ltd. has 3 public sector contract awards on record, from 2017 to 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. 2 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- University of Essex2 awards
- Procure Plus Holdings Limited1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| University of Essex | CA11102 - Utility Supply and Energy Management Services Framework | Ceiling, not shown | 17 Mar 2023 |
| University of Essex | Utility Supply and Energy Management Services Framework | Ceiling, not shown | 15 Feb 2023 |
| Procure Plus Holdings Limited | Framework Agreement for the Design and Installation of Ground Source Heat Pump Systems | Ceiling, not shown | 13 Feb 2017 |
Where JKN Renewables Ltd. is registered
The registered office is in Doncaster (DN9), in the North Lincolnshire local authority area, Yorkshire and The Humber. Show DN9 1LB on a map.
Other trade companies in DN9
- Lsrec LtdElectricians
- Misterton Meadows LimitedProperty developers
- Misterton Paddock LimitedProperty developers
- Messingham Fields LimitedProperty developers
- G - Elite Aircraft Detailing LtdCleaning companies
- Epworth Flooring LtdFloor and wall tilers
- Josif Sales LtdMechanics and garages
- RM Home Renovations LtdFloor and wall tilers
What happens if JKN Renewables 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 07929475
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 January 2012 (14 years ago)
- Registered office
- Five Lane Ends Farm West End Road, Epworth, Doncaster, DN9 1LB
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 31 January 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Doncaster
Other active specialist construction companies registered in Doncaster.
- Johnsons Consultancy Services Ltd2023
- Jos Plant Services Ltd2026
- JR6 Installs Ltd2025
- JRC Cladding Ltd2020
- JT Property & Maintenance Services (Harrogate) Limited2002
- Just Dig IT Ltd2024
- JW Building Solutions Ltd2019
- K Fuller Limited2026
All specialist construction companies in Doncaster · All trades in Doncaster · Specialist contractors across the UK
Frequently asked questions
When are JKN Renewables Ltd.'s accounts due?
JKN Renewables Ltd.'s next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is JKN Renewables Ltd.'s CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is JKN Renewables Ltd. still trading?
JKN Renewables 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 JKN Renewables Ltd. do?
JKN Renewables Ltd. is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is JKN Renewables Ltd.?
JKN Renewables Ltd. was incorporated on 31 January 2012, 14 years ago.
Has JKN Renewables Ltd. won public sector contracts?
Yes. JKN Renewables Ltd. has 3 contract awards from public bodies on Contracts Finder and Find a Tender, most recently from University of Essex.
What is the penalty if JKN Renewables 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 JKN Renewables 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.