- Companies
- Specialist contractors
- London
- Shannon Utilities Limited
Shannon Utilities Limited
- Company number
- 09860080
- Incorporated
- 6 Nov 201510 years trading
- Registered office
- TC Group 6TH Floor Kings House, 9 - 10 Haymarket, London, SW1Y 4BP
- Nature of business
- Other specialised construction activities n.e.c.
Shannon Utilities Limited is a 10-year-old private limited company registered in London, company number 09860080, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 29 August 2027, and the CT600 for the period to 29 November 2026 is due at HMRC on 29 November 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 £23K (-3.6%) on the year before, to £620K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £631K against £78K owed within a year: 8.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 |
|---|---|---|---|---|---|
| 30 Nov 2025 | £620K | £458K | £631K | £78K | 0 |
| 30 Nov 2024 | £643K | £684K | £748K | £200K | 0 |
| 30 Nov 2023 | £617K | £558K | £733K | £224K | 9 |
| 30 Nov 2022 | £530K | £568K | £769K | £316K | 7 |
| 30 Nov 2021 | £361K | £363K | £676K | £397K | 4 |
| 30 Nov 2020 | £369K | £465K | £693K | £393K | 3 |
| 30 Nov 2019 | £178K | £188K | £322K | £177K | 3 |
| 30 Nov 2018 | £47K | £99K | £139K | £100K | 3 |
| 30 Nov 2017 | -£18K | £19K | £29K | £47K | |
| 30 Nov 2016 | £100 | £100 | £100 |
Where Shannon Utilities Limited is registered
The registered office is in London (SW1Y), in the Westminster local authority area, London. Show SW1Y 4BP on a map.
Other trade companies in SW1Y
- Terrace-G Ai Infrastructure LtdProperty developers
- Stonevanta Construction LtdBuilders
- Blackstone Stay Management LtdBuilders
- Blackstone Construction Management LtdBuilders
- Star Plant Construction & Property Management LtdBuilders
- Star Plant Construction Works LtdGroundworks and demolition
- Premier Construction Works LtdGroundworks and demolition
- Premier Construction & Real Estate Management LtdBuilders
Also registered at this address
6 other companies use the same registered office as Shannon Utilities Limited.
- North London Head Gardeners LtdLandscapers and gardeners
- One United LimitedProperty developers
- Potestas Services LimitedElectricians
- Sale United LimitedProperty developers
- Sworks LimitedSpecialist contractors
- Turnstone Group LimitedProperty developers
What happens if Shannon Utilities 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 29 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Aug 2027 to 29 Sep 2027 | £150 |
| 1 to 3 months late | 30 Sep 2027 to 29 Nov 2027 | £375 |
| 3 to 6 months late | 30 Nov 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Nov 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 29 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Nov 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
- 09860080
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 November 2015 (10 years ago)
- Registered office
- TC Group 6TH Floor Kings House, 9 - 10 Haymarket, London, SW1Y 4BP
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 29 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 5 November 2025
- Previous names
- Shannon Pipe Contractors Limited (until 26 Feb 2024)
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 London
Other active specialist construction companies registered in London.
- Shaza Design Limited2014
- Shell 4U Ltd2011
- Shelley Property Developments Limited2022
- Shen Construction Limited2015
- Sheriffs Fencing (Norfolk) Ltd2026
- Sherman Project Services Limited1985
- Sherpa Projects Ltd2022
- Shield Window Film Ltd2004
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Shannon Utilities Limited's accounts due?
Shannon Utilities Limited's next accounts are due at Companies House by 29 August 2027 (in 320 days), covering the period to 29 November 2026.
When is Shannon Utilities Limited's CT600 due?
The CT600 for the period to 29 November 2026 is due at HMRC by 29 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 August 2027.
Is Shannon Utilities Limited still trading?
Shannon Utilities 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 Shannon Utilities Limited do?
Shannon Utilities Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Shannon Utilities Limited?
Shannon Utilities Limited was incorporated on 6 November 2015, 10 years ago.
What is the penalty if Shannon Utilities 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 Shannon Utilities 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.