- Companies
- Specialist contractors
- Cardiff
- Russ J Site Support Ltd
Russ J Site Support Ltd
- Company number
- 11649750
- Incorporated
- 30 Oct 20187 years trading
- Registered office
- 7 Ty Nant Court, Morganstown, Cardiff, CF15 8LW
- Nature of business
- Other specialised construction activities n.e.c.
Russ J Site Support Ltd is a 7-year-old private limited company registered in Cardiff, company number 11649750, one of 173 specialist construction companies in Cardiff. Its next accounts are due at Companies House on 31 October 2026, and its first CT600 is due at HMRC on 31 October 2026.
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 £2,311 (-40.7%) on the year before, to £3,370.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- Current assets of £4,683 against £3,771 owed within a year: 1.2 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2019 to 2023.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2023 | £3,370 | £4,123 | £4,683 | £3,771 | 0 |
| 31 Oct 2022 | £5,681 | £17K | £17K | £15K | 0 |
| 31 Oct 2021 | £20K | £15K | £22K | £5,681 | 1 |
| 31 Oct 2020 | £21K | £9,485 | £21K | £5,034 | 1 |
| 31 Oct 2019 | £2,991 | £7,411 | £17K | £6,565 | 1 |
Who runs and owns Russ J Site Support Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| R*** J*** | Director | Oct 2018 |
Person with significant control
Where Russ J Site Support Ltd is registered
The registered office is in Cardiff (CF15), in the Cardiff local authority area, Wales. Show CF15 8LW on a map.
Other trade companies in CF15
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- Jcstructures LtdInstallers
- Grant Hughes Ewi Specialists LtdInstallers
- Cadarn Industrial Construction LimitedRoofers
- Lollies Cleaning LtdCleaning companies
- Bishop Contractors LimitedBuilders
- GCR 2017 LtdLandscapers and gardeners
- V3 (U.K.) LimitedInstallers
Also registered at this address
17 other companies use the same registered office as Russ J Site Support Ltd.
- Ace MOT Station LimitedMechanics and garages
- Adp Tiling LtdFloor and wall tilers
- Bishop Contractors LimitedBuilders
- Construction Management Services LimitedProperty developers
- DXB Developments LtdProperty developers
- Foley Site Management LimitedBuilders
- Hi-Tech Industrial Roofing LimitedRoofers
- Howe and Jones LimitedSpecialist contractors
- J T Molloy LimitedBuilders
- Josh Perrett Plastering LtdPlasterers
- JPW Heating Services LimitedPlumbers and heating engineers
- LDJ Lifting Services LimitedSpecialist contractors
- Lloyds MOT Centre LtdMechanics and garages
- Oaklands Developments LtdProperty developers
- Pilchard Shed LtdProperty developers
- Resto Classics(Cardiff) LimitedMotor traders
- Sean Bishop Building LimitedBuilders
What happens if Russ J Site Support 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
- 11649750
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 October 2018 (7 years ago)
- Registered office
- 7 Ty Nant Court, Morganstown, Cardiff, CF15 8LW
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2024
- Last confirmation statement
- 29 October 2025
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 Cardiff
Other active specialist construction companies registered in Cardiff.
- Sasquatch Services Limited2017
- SD Building Services Cardiff Limited2017
- Select Testing (Wales) Limited2008
- Setpiecesuk Limited2024
- Shija & Sons Limited2019
- Simon Reynolds Consulting Ltd2022
- Skyline Rope Access Limited2004
- Smartshield Wallcoating Solutions Ltd2023
All specialist construction companies in Cardiff · All trades in Cardiff · Specialist contractors across the UK
Frequently asked questions
When are Russ J Site Support Ltd's accounts due?
Russ J Site Support 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 Russ J Site Support Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 October 2025, due by 31 October 2026, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Russ J Site Support Ltd still trading?
Russ J Site Support 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 Russ J Site Support Ltd do?
Russ J Site Support Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Russ J Site Support Ltd?
Russ J Site Support Ltd was incorporated on 30 October 2018, 7 years ago.
Who runs Russ J Site Support Ltd?
Russ J Site Support Ltd has 1 active director, the longest-serving appointed in Oct 2018. Their names and service addresses are on the Companies House register.
Who owns Russ J Site Support Ltd?
One person or company has significant control of Russ J Site Support Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Russ J Site Support 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 Russ J Site Support 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.