- Companies
- Property developers
- Tonypandy
- Iis Groundworks Ltd
Iis Groundworks Ltd
- Company number
- 07176070
- Incorporated
- 3 Mar 201016 years trading
- Registered office
- 14 Brook Street, Tonypandy, Mid Glamorgan, CF40 1RB
- Nature of business
- Development of building projects
Iis Groundworks Ltd is a 16-year-old private limited company registered in Tonypandy, company number 07176070, one of 12 property development companies in Tonypandy. Its next accounts are due at Companies House on 29 December 2026, and the CT600 for the period to 29 March 2026 is due at HMRC on 29 March 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 £2,433 (-1.3%) on the year before, to £183K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £267K against £110K owed within a year: 2.4 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 |
|---|---|---|---|---|---|
| 29 Mar 2025 | £183K | £267K | £110K | 0 | |
| 29 Mar 2024 | £185K | £224K | £72K | 1 | |
| 29 Mar 2023 | £315K | £334K | £24K | 1 | |
| 30 Mar 2022 | £267K | £292K | £31K | 1 | |
| 31 Mar 2021 | £225K | £269K | £50K | 1 | |
| 31 Mar 2020 | £216K | £245K | £38K | 1 | |
| 31 Mar 2019 | £185K | £204K | £29K | ||
| 31 Mar 2018 | £162K | £190K | £34K | ||
| 31 Mar 2017 | £135K | £128K | £1,115 | ||
| 31 Mar 2016 | £84K | £71K | £79K | £2,682 |
Where Iis Groundworks Ltd is registered
The registered office is in Tonypandy (CF40), in the Rhondda Cynon Taf local authority area, Wales. Show CF40 1RB on a map.
Other trade companies in CF40
- C S National Builders LimitedProperty developers
- Ars Aedifex LtdBuilders
- Ca54 Rail LtdCivil engineering
- Colcombe Estates LtdProperty developers
- PJF Roofing & Son LtdRoofers
- SC South West Maintenance LimitedFacilities management
- L J Civils LimitedBuilders
- R&L Hygiene LtdCleaning companies
What happens if Iis Groundworks 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 29 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Dec 2026 to 29 Jan 2027 | £150 |
| 1 to 3 months late | 30 Jan 2027 to 29 Mar 2027 | £375 |
| 3 to 6 months late | 30 Mar 2027 to 29 Jun 2027 | £750 |
| More than 6 months late | From 30 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Mar 2027 | £200 |
| 3 months late | 29 Jun 2027 | another £200 |
| 6 months late | 29 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 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
- 07176070
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 March 2010 (16 years ago)
- Registered office
- 14 Brook Street, Tonypandy, Mid Glamorgan, CF40 1RB
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 29 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 29 March 2025
- Last confirmation statement
- 3 March 2026
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Tonypandy
Other active property development companies registered in Tonypandy.
- M J R Drylining Ltd2022
- Norr Soder Developments Ltd2026
- Teds One Developments Ltd2018
- Tri W Limited2022
- United Retrofit UK Limited2026
- C S National Builders Limited2026
- Colcombe Estates Ltd2026
- Complete Commercial Contractors Ltd2025
All property development companies in Tonypandy · All trades in Tonypandy · Property developers across the UK
Frequently asked questions
When are Iis Groundworks Ltd's accounts due?
Iis Groundworks Ltd's next accounts are due at Companies House by 29 December 2026 (in 77 days), covering the period to 29 March 2026.
When is Iis Groundworks Ltd's CT600 due?
The CT600 for the period to 29 March 2026 is due at HMRC by 29 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 December 2026.
Is Iis Groundworks Ltd still trading?
Iis Groundworks 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 Iis Groundworks Ltd do?
Iis Groundworks Ltd is registered under Development of building projects (SIC 41100).
How old is Iis Groundworks Ltd?
Iis Groundworks Ltd was incorporated on 3 March 2010, 16 years ago.
What is the penalty if Iis Groundworks 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 Iis Groundworks 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.