- Companies
- Builders
- Carshalton
- Solidcore London Ltd
Solidcore London Ltd
- Company number
- 17233785
- Incorporated
- 20 May 2026
- Registered office
- 20 Wrythe Lane, Carshalton, SM5 2RN
- Nature of business
- Construction of domestic buildings
Solidcore London Ltd is a newly incorporated private limited company registered in Carshalton, company number 17233785, one of 104 building contractors in Carshalton. Its next accounts are due at Companies House on 20 February 2028, and its first CT600 is due at HMRC on 19 May 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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Who runs and owns Solidcore London Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| M*** S*** | Director | May 2026 |
Person with significant control
Where Solidcore London Ltd is registered
The registered office is in Carshalton (SM5), in the Sutton local authority area, London. Show SM5 2RN on a map.
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Also registered at this address
1 other company uses the same registered office as Solidcore London Ltd.
- Prosto Construction London LtdBuilders
What happens if Solidcore London 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 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 21 Feb 2028 to 20 Mar 2028 | £150 |
| 1 to 3 months late | 21 Mar 2028 to 20 May 2028 | £375 |
| 3 to 6 months late | 21 May 2028 to 20 Aug 2028 | £750 |
| More than 6 months late | From 21 Aug 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 17233785
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 May 2026
- Registered office
- 20 Wrythe Lane, Carshalton, SM5 2RN
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 May (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 Carshalton
Other active building contractors registered in Carshalton.
- Stovi Plumbing Ltd2014
- Stratus Building and Mechanical Services Ltd2021
- Surrey London Builds Ltd2025
- TB Quality Painting & Decorating Services Ltd2019
- Tetaabuilders Ltd2023
- The Bespoke Touch Ltd2022
- The Polish Building Company Ltd2009
- Top Class Job Ltd2025
All building contractors in Carshalton · All trades in Carshalton · Builders across the UK
Frequently asked questions
When are Solidcore London Ltd's accounts due?
Solidcore London Ltd's next accounts are due at Companies House by 20 February 2028 (in 495 days), covering the period to 31 May 2027.
When is Solidcore London 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 May 2027, due by 19 May 2028, and one for the period to 31 May 2027, due by 31 May 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Solidcore London Ltd still trading?
Solidcore London 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 Solidcore London Ltd do?
Solidcore London Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Solidcore London Ltd?
Solidcore London Ltd was incorporated on 20 May 2026, less than a year ago.
Who runs Solidcore London Ltd?
Solidcore London Ltd has 1 active director, the longest-serving appointed in May 2026. Their names and service addresses are on the Companies House register.
Who owns Solidcore London Ltd?
One person or company has significant control of Solidcore London Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Solidcore London 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 Solidcore London 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.