- Company number
- 11371311
- Incorporated
- 18 May 20188 years trading
- Registered office
- 86 South Norwood Hill, London, SE25 6AQ
- Nature of business
- Construction of domestic buildings; Construction of other civil engineering projects n.e.c.
Sam the Builder Ltd. is a 8-year-old private limited company registered in London, company number 11371311, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
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 £328 (-22%) on the year before, to £1,160.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £41K against £12K owed within a year: 3.5 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £1,160 | £41K | £12K | 1 | |
| 31 May 2024 | £1,488 | £43K | £12K | 1 | |
| 31 May 2023 | £1,074 | £47K | £12K | 1 | |
| 31 May 2022 | £1,006 | £51K | £12K | 1 | |
| 31 May 2021 | £1,414 | £53K | £6,351 | 1 | |
| 31 May 2020 | £2,188 | £2,249 | £61 | 1 | |
| 31 May 2019 | £1,928 | £1,928 | £0 |
Where Sam the Builder Ltd. is registered
The registered office is in London (SE25), in the Croydon local authority area, London. Show SE25 6AQ on a map.
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- GCS Electrical Services LimitedElectricians
Shared registered office
60 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Sam the Builder 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 11371311
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 May 2018 (8 years ago)
- Registered office
- 86 South Norwood Hill, London, SE25 6AQ
- Nature of business
- Construction of domestic buildings (SIC 41202)
Construction of other civil engineering projects n.e.c. (SIC 42990) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 17 May 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 London
Other active building contractors registered in London.
- Sam's Building Maintenance and Constructions Ltd2012
- Sama Atn Ltd2021
- Sama Secon Ltd2022
- Samamk Limited2024
- Samdh Ltd2026
- Samhwa Mixing Tech Co., Ltd2026
- Sami Construction Ltd2015
- Samiraco Construction Ltd2020
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Sam the Builder Ltd.'s accounts due?
Sam the Builder Ltd.'s next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Sam the Builder Ltd.'s CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Sam the Builder Ltd. still trading?
Sam the Builder 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 Sam the Builder Ltd. do?
Sam the Builder Ltd. is registered under Construction of domestic buildings (SIC 41202); Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Sam the Builder Ltd.?
Sam the Builder Ltd. was incorporated on 18 May 2018, 8 years ago.
What is the penalty if Sam the Builder 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 Sam the Builder 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.