- Companies
- Civil engineering
- Brackley
- Mill House Construction Services Ltd
Mill House Construction Services Ltd
- Company number
- 17290017
- Incorporated
- 20 Jun 2026
- Registered office
- The Mill House, Whitfield, Brackley, NN13 5TD
- Nature of business
- Construction of other civil engineering projects n.e.c.; Quantity surveying activities
Mill House Construction Services Ltd is a newly incorporated private limited company registered in Brackley, company number 17290017, one of the UK's civil engineering contractors. Its next accounts are due at Companies House on 20 March 2028, and its first CT600 is due at HMRC on 19 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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Where Mill House Construction Services Ltd is registered
The registered office is in Brackley (NN13), in the Buckinghamshire local authority area, South East. Show NN13 5TD on a map.
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What happens if Mill House Construction Services 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 20 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 21 Mar 2028 to 20 Apr 2028 | £150 |
| 1 to 3 months late | 21 Apr 2028 to 20 Jun 2028 | £375 |
| 3 to 6 months late | 21 Jun 2028 to 20 Sep 2028 | £750 |
| More than 6 months late | From 21 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 17290017
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 June 2026
- Registered office
- The Mill House, Whitfield, Brackley, NN13 5TD
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Quantity surveying activities (SIC 74902) - Year end
- 30 June (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 Brackley
Other active civil engineering contractors registered in Brackley.
All civil engineering contractors in Brackley · All trades in Brackley · Civil engineering across the UK
Frequently asked questions
When are Mill House Construction Services Ltd's accounts due?
Mill House Construction Services Ltd's next accounts are due at Companies House by 20 March 2028 (in 525 days), covering the period to 30 June 2027.
When is Mill House Construction Services 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 19 June 2027, due by 19 June 2028, and one for the period to 30 June 2027, due by 30 June 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Mill House Construction Services Ltd still trading?
Mill House Construction Services 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 Mill House Construction Services Ltd do?
Mill House Construction Services Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Quantity surveying activities (SIC 74902).
How old is Mill House Construction Services Ltd?
Mill House Construction Services Ltd was incorporated on 20 June 2026, less than a year ago.
What is the penalty if Mill House Construction Services 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 Mill House Construction Services 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.