- Companies
- Civil engineering
- Hitchin
- Connolly and Sons Construction Ltd
Connolly and Sons Construction Ltd
- Company number
- 17311971
- Incorporated
- 1 Jul 2026
- Registered office
- 5 Hornbeam Place, Hitchin, SG5 4TN
- Nature of business
- Construction of roads and motorways
Connolly and Sons Construction Ltd is a newly incorporated private limited company registered in Hitchin, company number 17311971, one of 20 civil engineering contractors in Hitchin. Its next accounts are due at Companies House on 1 April 2028, and its first CT600 is due at HMRC on 30 June 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Who runs and owns Connolly and Sons Construction Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| G*** C*** | Director | Jul 2026 |
Person with significant control
Where Connolly and Sons Construction Ltd is registered
The registered office is in Hitchin (SG5), in the Central Bedfordshire local authority area, East of England. Show SG5 4TN on a map.
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What happens if Connolly and Sons Construction 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 1 April 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 2 Apr 2028 to 1 May 2028 | £150 |
| 1 to 3 months late | 2 May 2028 to 1 Jul 2028 | £375 |
| 3 to 6 months late | 2 Jul 2028 to 1 Oct 2028 | £750 |
| More than 6 months late | From 2 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2028 | £200 |
| 3 months late | 31 Oct 2028 | another £200 |
| 6 months late | 31 Jan 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 2029 | 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
- 17311971
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 July 2026
- Registered office
- 5 Hornbeam Place, Hitchin, SG5 4TN
- Nature of business
- Construction of roads and motorways (SIC 42110)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
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 Hitchin
Other active civil engineering contractors registered in Hitchin.
- Coregrid Engineering Ltd2025
- Costdeal Limited1994
- Cutloose Utilities Limited2025
- DDS Water Solutions Ltd2016
- Horizons Edge Construction and Project Management Ltd2025
- J Hare Diamond Drilling (Hitchin) Limited1999
- JPS Surfacing Ltd2024
- Linxcroft Developments Limited1995
All civil engineering contractors in Hitchin · All trades in Hitchin · Civil engineering across the UK
Frequently asked questions
When are Connolly and Sons Construction Ltd's accounts due?
Connolly and Sons Construction Ltd's next accounts are due at Companies House by 1 April 2028 (in 536 days), covering the period to 31 July 2027.
When is Connolly and Sons Construction 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 30 June 2027, due by 30 June 2028, and one for the period to 31 July 2027, due by 31 July 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Connolly and Sons Construction Ltd still trading?
Connolly and Sons Construction 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 Connolly and Sons Construction Ltd do?
Connolly and Sons Construction Ltd is registered under Construction of roads and motorways (SIC 42110).
How old is Connolly and Sons Construction Ltd?
Connolly and Sons Construction Ltd was incorporated on 1 July 2026, less than a year ago.
Who runs Connolly and Sons Construction Ltd?
Connolly and Sons Construction Ltd has 1 active director, the longest-serving appointed in Jul 2026. Their names and service addresses are on the Companies House register.
Who owns Connolly and Sons Construction Ltd?
One person or company has significant control of Connolly and Sons Construction Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Connolly and Sons Construction 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 Connolly and Sons Construction 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.