- Companies
- Property developers
- Chippenham
- H Mac Groundworks Ltd
H Mac Groundworks Ltd
- Company number
- 15835460
- Incorporated
- 12 Jul 20242 years trading
- Registered office
- The Cottage, Plough Lane, Chippenham, SN15 5PW
- Nature of business
- Development of building projects; Construction of commercial buildings; Other construction installation
H Mac Groundworks Ltd is a 2-year-old private limited company registered in Chippenham, company number 15835460, one of 82 property development companies in Chippenham. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 July 2025, as filed at Companies House.
Where H Mac Groundworks Ltd is registered
The registered office is in Chippenham (SN15), in the Wiltshire local authority area, South West. Show SN15 5PW on a map.
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What happens if H Mac 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 15835460
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 July 2024 (2 years ago)
- Registered office
- The Cottage, Plough Lane, Chippenham, SN15 5PW
- Nature of business
- Development of building projects (SIC 41100)
Construction of commercial buildings (SIC 41201)
Other construction installation (SIC 43290) - Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 11 July 2025
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 Chippenham
Other active property development companies registered in Chippenham.
- HBR Construction Ltd2021
- HMH Contracting Ltd2012
- Investy Limited1979
- J & M Developments SW Ltd2025
- J J Siga Limited2004
- Jack Humphrys Builders Ltd2017
- JJKH Limited2023
- JLMT Property Investors Ltd2021
All property development companies in Chippenham · All trades in Chippenham · Property developers across the UK
Frequently asked questions
When are H Mac Groundworks Ltd's accounts due?
H Mac Groundworks Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is H Mac Groundworks Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is H Mac Groundworks Ltd still trading?
H Mac Groundworks Ltd is listed as active on the Companies House register (checked 12 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 H Mac Groundworks Ltd do?
H Mac Groundworks Ltd is registered under Development of building projects (SIC 41100); Construction of commercial buildings (SIC 41201); Other construction installation (SIC 43290).
How old is H Mac Groundworks Ltd?
H Mac Groundworks Ltd was incorporated on 12 July 2024, 2 years ago.
What is the penalty if H Mac 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 H Mac Groundworks Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.