John Kelly Construction Services Limited
- Company number
- 06477399
- Incorporated
- 18 Jan 200818 years trading
- Registered office
- Penrallt, Llanddaniel, Gaerwen, Anglesey, LL60 6DY
- Nature of business
- Construction of domestic buildings
John Kelly Construction Services Limited is a 18-year-old private limited company registered in Anglesey, company number 06477399, one of the UK's building contractors. 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 down £79K (-5.2%) on the year before, to £1.4M.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £2M against £1.2M owed within a year: 1.6 times cover.
- 16 employees on average, down from 19 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 | £1.4M | £642K | £2M | £1.2M | 16 |
| 31 Dec 2024 | £1.5M | £238K | £1.3M | £866K | 19 |
| 31 Dec 2023 | £1.4M | £302K | £1.5M | £1.2M | 24 |
| 31 Dec 2022 | £1.5M | £168K | £1.3M | £994K | 24 |
| 31 Dec 2021 | £1.6M | £537K | £1.7M | £1.1M | 23 |
| 31 Dec 2020 | £1.3M | £789K | £2M | £934K | 17 |
| 31 Dec 2019 | £856K | £320K | £1M | £600K | 15 |
| 31 Dec 2018 | £645K | £484K | £688K | £378K | 14 |
| 31 Dec 2017 | £478K | £276K | £610K | £231K | 4 |
| 31 Dec 2016 | £440K | £124K | £496K | £5,760 | 3 |
Public contracts won
John Kelly Construction Services Limited has one public sector contract award on record (2022). 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 |
|---|---|---|---|
| Natural Resources Wales | Forest Roads Construction Framework | Ceiling, not shown | 1 Nov 2022 |
Where John Kelly Construction Services Limited is registered
The registered office is in Anglesey (LL60), in the Isle of Anglesey local authority area, Wales. Show LL60 6DY on a map.
Other trade companies in LL60
- JNF Property Services LtdProperty developers
- G1 Building & Roofing LtdRoofers
- S H R Contracting LtdSpecialist contractors
- A.B. Jetwash LtdCleaning companies
- Ty CRWN Garej CyfMechanics and garages
- Windowtec Group LtdProperty developers
- E & D Thomas LtdSpecialist contractors
- Dark Matter Detailing LtdCleaning companies
What happens if John Kelly Construction Services 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
- 06477399
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 January 2008 (18 years ago)
- Registered office
- Penrallt, Llanddaniel, Gaerwen, Anglesey, LL60 6DY
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 18 January 2026
- Charges (mortgages)
- 2 outstanding of 2 registered
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies
Other active building contractors.
Frequently asked questions
When are John Kelly Construction Services Limited's accounts due?
John Kelly Construction Services 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 John Kelly Construction Services 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 John Kelly Construction Services Limited still trading?
John Kelly Construction Services 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 John Kelly Construction Services Limited do?
John Kelly Construction Services Limited is registered under Construction of domestic buildings (SIC 41202).
How old is John Kelly Construction Services Limited?
John Kelly Construction Services Limited was incorporated on 18 January 2008, 18 years ago.
Has John Kelly Construction Services Limited won public sector contracts?
Yes. John Kelly Construction Services Limited has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Natural Resources Wales.
What is the penalty if John Kelly Construction Services 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 John Kelly Construction Services 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.