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- Mam Construction Ltd
Company profile · Builders
Mam Construction Ltd
Mam Construction Ltd is a newly incorporated private limited company registered in Middlesbrough, company number 17453909, one of 163 building contractors in Middlesbrough. Its next accounts are due at Companies House on 11 June 2028, and its first CT600 is due at HMRC on 10 September 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 Mam Construction Ltd is registered
The registered office is in Middlesbrough (TS3), in the Middlesbrough local authority area, North East. Show TS3 6JD on a map.
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- Anth Paint LtdPainters and decorators
- Kaw Engineering Services LimitedElectricians
- S T Offshore Rigging LtdCivil engineering
- Cleveland Landscapes LtdLandscapers and gardeners
- Engtech Pro LtdCivil engineering
What happens if Mam 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 11 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 12 Jun 2028 to 11 Jul 2028 | £150 |
| 1 to 3 months late | 12 Jul 2028 to 11 Sep 2028 | £375 |
| 3 to 6 months late | 12 Sep 2028 to 11 Dec 2028 | £750 |
| More than 6 months late | From 12 Dec 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2028 | £200 |
| 3 months late | 30 Dec 2028 | another £200 |
| 6 months late | 30 Mar 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 17453909
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 September 2026
- Registered office
- 14 Dorothy Street, Middlesbrough, TS3 6JD
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Middlesbrough
Other active building contractors registered in Middlesbrough.
- Masterclass Tiling and Plumbing Ltd2026
- Max Gibb Building Services Limited2022
- Mayaro Tours Limited2026
- Mbaok01 Limited2025
- McLaney Developments Limited2002
- McLeod Access Solutions Ltd2026
- Melbury Developments (Ne) Ltd2025
- Michael Atkinson Builder Ltd2025
All building contractors in Middlesbrough · All trades in Middlesbrough · Builders across the UK
Frequently asked questions
When are Mam Construction Ltd's accounts due?
Mam Construction Ltd's next accounts are due at Companies House by 11 June 2028 (in 608 days), covering the period to 30 September 2027.
When is Mam 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 10 September 2027, due by 10 September 2028, and one for the period to 30 September 2027, due by 30 September 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Mam Construction Ltd still trading?
Mam 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 Mam Construction Ltd do?
Mam Construction Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is Mam Construction Ltd?
Mam Construction Ltd was incorporated on 11 September 2026, less than a year ago.
What is the penalty if Mam 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 Mam 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.