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Company profile · Builders
Sam1 Construction Ltd
Sam1 Construction Ltd is a 6-year-old private limited company registered in Kings Langley, company number 12837046, one of 22 building contractors in Kings Langley. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 August 2025, as filed at Companies House.
Sam1 Construction Ltd over the years
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £196 (-13.3%) on the year before, to £1,279.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £410 against £1,250 owed within a year: 0.3 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £1,279 | £410 | £1,250 | 1 | |
| 31 Aug 2024 | £1,475 | £225 | 1 | ||
| 31 Aug 2023 | £427 | £427 | 1 | ||
| 31 Aug 2022 | £1 | ||||
| 31 Aug 2021 | £1 |
Where Sam1 Construction Ltd is registered
The registered office is in Kings Langley (WD4), in the Three Rivers local authority area, East of England. Show WD4 8LQ on a map.
Other trade companies in WD4
- David Construction LtdBuilders
- Smartpark Solar LtdCivil engineering
- Westfields Homes (Village Road) LtdProperty developers
- Chipperfield Car Valeting LtdMechanics and garages
- Adi Stag LtdBuilders
- Concord Met Construction LimitedProperty developers
- GT Lifting Services LtdSpecialist contractors
- Chess Valley Roofing & Construction LtdBuilders
Also registered at this address
1 other company uses the same registered office as Sam1 Construction Ltd.
- I-Automate LtdSpecialist contractors
What happens if Sam1 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 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 12837046
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 August 2020 (6 years ago)
- Registered office
- Unit 4-5 Monaco Works, Station Road, Kings Langley, WD4 8LQ
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other construction installation (SIC 43290)
Other building completion and finishing (SIC 43390) - Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 24 August 2026
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 Kings Langley
Other active building contractors registered in Kings Langley.
- Singer Developments Limited2017
- Adi Stag Ltd2026
- Alignment Construction Ltd2026
- Assemble SPV 3 Ltd2026
- Blok - Building Ltd2020
- Chess Valley Roofing & Construction Ltd2026
- Cloontagh Plant Ltd2020
- Coora Plant & Civils (CPC) Limited2020
All building contractors in Kings Langley · All trades in Kings Langley · Builders across the UK
Frequently asked questions
When are Sam1 Construction Ltd's accounts due?
Sam1 Construction Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Sam1 Construction Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Sam1 Construction Ltd still trading?
Sam1 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 Sam1 Construction Ltd do?
Sam1 Construction Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other construction installation (SIC 43290); Other building completion and finishing (SIC 43390).
How old is Sam1 Construction Ltd?
Sam1 Construction Ltd was incorporated on 25 August 2020, 6 years ago.
What is the penalty if Sam1 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 Sam1 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.