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- Solar Industry Dev Ltd
Company profile · Civil engineering
Solar Industry Dev Ltd
Solar Industry Dev Ltd is a 1-year-old private limited company registered in London, company number 16711957, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 11 June 2027, and its first CT600 is due at HMRC on 10 September 2027.
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 Solar Industry Dev Ltd is registered
The registered office is in London (EC1V), in the Islington local authority area, London. Show EC1V 2NX on a map.
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Shared registered office
2,436 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 Solar Industry Dev 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 12 Jun 2027 to 11 Jul 2027 | £150 |
| 1 to 3 months late | 12 Jul 2027 to 11 Sep 2027 | £375 |
| 3 to 6 months late | 12 Sep 2027 to 11 Dec 2027 | £750 |
| More than 6 months late | From 12 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 16711957
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 September 2025 (1 year ago)
- Registered office
- 128 City Road, London, EC1V 2NX
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Activities of real estate investment trusts (SIC 64306)
Fund management activities (SIC 66300)
Buying and selling of own real estate (SIC 68100) - Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in London
Other active civil engineering contractors registered in London.
- Solid Beck Limited2019
- Solid Stabilisation Services Ltd2021
- Solis Resources & Co Ltd2025
- Soseg Limited2009
- Southey Consulting Ltd2024
- Southsea Island Rail Limited2021
- Soventix Epc UK Ltd2025
- Soventix Hybrid Limited2017
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Solar Industry Dev Ltd's accounts due?
Solar Industry Dev Ltd's next accounts are due at Companies House by 11 June 2027 (in 242 days), covering the period to 30 September 2026.
When is Solar Industry Dev 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 2026, due by 10 September 2027, and one for the period to 30 September 2026, due by 30 September 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Solar Industry Dev Ltd still trading?
Solar Industry Dev Ltd is listed as active on the Companies House register (checked 12 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 Solar Industry Dev Ltd do?
Solar Industry Dev Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Activities of real estate investment trusts (SIC 64306); Fund management activities (SIC 66300); Buying and selling of own real estate (SIC 68100).
How old is Solar Industry Dev Ltd?
Solar Industry Dev Ltd was incorporated on 11 September 2025, 1 year ago.
What is the penalty if Solar Industry Dev 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 Solar Industry Dev Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.