- Companies
- Civil engineering
- Shepton Mallet
- Third Island Limited
Third Island Limited
- Company number
- 08342295
- Incorporated
- 28 Dec 201213 years trading
- Registered office
- Sunnyholme Leighton Lane, Evercreech, Shepton Mallet, Somerset, BA4 6JU
- Nature of business
- Construction of other civil engineering projects n.e.c.
Third Island Limited is a 13-year-old private limited company registered in Shepton Mallet, company number 08342295, one of 10 civil engineering contractors in Shepton Mallet. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Third Island LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £4,346 (-45%) on the year before, to £5,322.
- Net assets rose in 2 of 7 year-on-year comparisons on record.
- Current assets of £19K against £12K owed within a year: 1.6 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2014 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £5,322 | £19K | £12K | 2 | |
| 31 Mar 2024 | £9,668 | £22K | £12K | 2 | |
| 31 Mar 2023 | £6,203 | £23K | £16K | 2 | |
| 31 Mar 2022 | £3,716 | £15K | £10K | 2 | |
| 31 Mar 2021 | £4,497 | £16K | £11K | 2 | |
| 31 Mar 2020 | £6,081 | £16K | £9,548 | 2 | |
| 31 Mar 2019 | £11K | £21K | £9,305 | 2 | |
| 31 Dec 2015 | £670 | £7,227 | £7,271 | £6,601 | |
| 31 Dec 2014 | £1,196 | £6,683 | £6,683 | £5,487 |
Who runs and owns Third Island Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| N*** T*** | Director | Dec 2012 |
| J*** T*** | Director | Feb 2016 |
People with significant control (2)
Where Third Island Limited is registered
The registered office is in Shepton Mallet (BA4), in the Somerset local authority area, South West. Show BA4 6JU on a map.
Other trade companies in BA4
- Vicarage Road Investments LimitedProperty developers
- Oakmead Construction LtdBuilders
- Otters Heating LtdSpecialist contractors
- Neuphoria Renovations LtdBuilders
- N & M Plumbing and Heating LtdPlumbers and heating engineers
- CH Maintenance & Painting LtdPainters and decorators
- J & A Automotive (SW) LtdMechanics and garages
- Meees-M&E LtdMachinery repair and installation
What happens if Third Island 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 08342295
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 December 2012 (13 years ago)
- Registered office
- Sunnyholme Leighton Lane, Evercreech, Shepton Mallet, Somerset, BA4 6JU
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 28 December 2025
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 Shepton Mallet
Other active civil engineering contractors registered in Shepton Mallet.
- A and S Building Contractors Ltd.2000
- Amulet Engineering Ltd2026
- Andy Cole Limited2003
- Highways Plus Ltd2023
- John Long Ltd2003
- On Solid Groundworks and Plant Hire Ltd2024
- Renewable Energy Partnerships Limited2002
- Rosben Limited2006
All civil engineering contractors in Shepton Mallet · All trades in Shepton Mallet · Civil engineering across the UK
Frequently asked questions
When are Third Island Limited's accounts due?
Third Island Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Third Island Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Third Island Limited still trading?
Third Island 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 Third Island Limited do?
Third Island Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Third Island Limited?
Third Island Limited was incorporated on 28 December 2012, 13 years ago.
Who runs Third Island Limited?
Third Island Limited has 2 active directors, the longest-serving appointed in Dec 2012. Their names and service addresses are on the Companies House register.
Who owns Third Island Limited?
2 people or companies have significant control of Third Island Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if Third Island 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 Third Island 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.