- Companies
- Civil engineering
- Strathaven
- Hartness Civil & Structural Limited
Hartness Civil & Structural Limited
- Company number
- SC900040
- Incorporated
- 23 Aug 2026
- Registered office
- 35 Fernlea Road, Strathaven, ML10 6JY
- Nature of business
- Construction of other civil engineering projects n.e.c.
Hartness Civil & Structural Limited is a newly incorporated private limited company registered in Strathaven, company number SC900040, one of 7 civil engineering contractors in Strathaven. Its next accounts are due at Companies House on 23 May 2028, and its first CT600 is due at HMRC on 22 August 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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Where Hartness Civil & Structural Limited is registered
The registered office is in Strathaven (ML10), in the South Lanarkshire local authority area, Scotland. Show ML10 6JY on a map.
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Also registered at this address
1 other company uses the same registered office as Hartness Civil & Structural Limited.
- Hartness Home Improvements LimitedJoiners and carpenters
What happens if Hartness Civil & Structural 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 23 May 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 24 May 2028 to 23 Jun 2028 | £150 |
| 1 to 3 months late | 24 Jun 2028 to 23 Aug 2028 | £375 |
| 3 to 6 months late | 24 Aug 2028 to 23 Nov 2028 | £750 |
| More than 6 months late | From 24 Nov 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2028 | £200 |
| 3 months late | 30 Nov 2028 | another £200 |
| 6 months late | 28 Feb 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- SC900040
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 August 2026
- Registered office
- 35 Fernlea Road, Strathaven, ML10 6JY
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 August (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 Strathaven
Other active civil engineering contractors registered in Strathaven.
- RRSS Engineering Limited2015
- Sas Rail Limited2020
- SGGC Ltd2022
- Abh Contracts Scotland Ltd2020
- Castleview Engineering Ltd2023
- Chestnut Interiors Ltd2016
All civil engineering contractors in Strathaven · All trades in Strathaven · Civil engineering across the UK
Frequently asked questions
When are Hartness Civil & Structural Limited's accounts due?
Hartness Civil & Structural Limited's next accounts are due at Companies House by 23 May 2028 (in 588 days), covering the period to 31 August 2027.
When is Hartness Civil & Structural Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 22 August 2027, due by 22 August 2028, and one for the period to 31 August 2027, due by 31 August 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Hartness Civil & Structural Limited still trading?
Hartness Civil & Structural 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 Hartness Civil & Structural Limited do?
Hartness Civil & Structural Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Hartness Civil & Structural Limited?
Hartness Civil & Structural Limited was incorporated on 23 August 2026, less than a year ago.
What is the penalty if Hartness Civil & Structural 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 Hartness Civil & Structural 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.