- Company number
- 15636156
- Incorporated
- 11 Apr 20242 years trading
- Registered office
- 14 Ennerdale Avenue, Stanmore, Middlesex, HA7 2LD
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Other building completion and finishing
SDL Contractors Limited is a 2-year-old private limited company registered in Stanmore, company number 15636156, one of 198 building contractors in Stanmore. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 30 April 2025, as filed at Companies House.
Where SDL Contractors Limited is registered
The registered office is in Stanmore (HA7), in the Harrow local authority area, London. Show HA7 2LD on a map.
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What happens if SDL Contractors 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 31 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 15636156
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 April 2024 (2 years ago)
- Registered office
- 14 Ennerdale Avenue, Stanmore, Middlesex, HA7 2LD
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390) - Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 10 April 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 Stanmore
Other active building contractors registered in Stanmore.
- Sfi. Constructions Build Ltd2022
- Sgaami Design and Build Limited2008
- Shackadelic Limited2011
- Shico Limited2018
- Shoreditch Village Residential Ltd2014
- Sicd Construction Ltd2020
- Site Link Construction Limited2022
- SLF Builders Limited2019
All building contractors in Stanmore · All trades in Stanmore · Builders across the UK
Frequently asked questions
When are SDL Contractors Limited's accounts due?
SDL Contractors Limited's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is SDL Contractors Limited's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is SDL Contractors Limited still trading?
SDL Contractors 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 SDL Contractors Limited do?
SDL Contractors Limited is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390).
How old is SDL Contractors Limited?
SDL Contractors Limited was incorporated on 11 April 2024, 2 years ago.
What is the penalty if SDL Contractors 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 SDL Contractors 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.