- Companies
- Specialist contractors
- Birmingham
- S.E.D. Concepts Ltd
S.E.D. Concepts Ltd
- Company number
- 13539564
- Incorporated
- 30 Jul 20215 years trading
- Registered office
- 25 Newton Road, Great Barr, Birmingham, B43 6AA
- Nature of business
- Other specialised construction activities n.e.c.
S.E.D. Concepts Ltd is a 5-year-old private limited company registered in Birmingham, company number 13539564, one of 442 specialist construction companies in Birmingham. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 up £5,972 (+299.9%) on the year before, to £7,963.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £24K against £16K owed within a year: 1.5 times cover.
- 1 employee on average, down from 2 the year before.
- Balance sheets on record for 5 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £7,963 | £24K | £16K | 1 | |
| 31 Mar 2024 | £1,991 | £17K | £15K | 2 | |
| 31 Jul 2023 | £100 | £100 | 0 | ||
| 31 Mar 2023 | £20K | £29K | £8,432 | 2 | |
| 31 Jul 2022 | £100 | £100 |
Where S.E.D. Concepts Ltd is registered
The registered office is in Birmingham (B43), in the Sandwell local authority area, West Midlands. Show B43 6AA on a map.
Other trade companies in B43
- Colero LimitedPlasterers
- Rael Holding LimitedBuilders
- Zaimm LtdBuilders
- JDM Electrical Installations LtdMechanics and garages
- Renewagreen LtdElectricians
- Grewalgroup LtdProperty developers
- B&E Cleaning LtdCleaning companies
- Paulmanningproperty LtdProperty developers
Also registered at this address
2 other companies use the same registered office as S.E.D. Concepts Ltd.
- Discount Builder Services LimitedBuilders
- Echo Green Energy LimitedPlumbers and heating engineers
What happens if S.E.D. Concepts 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 13539564
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 July 2021 (5 years ago)
- Registered office
- 25 Newton Road, Great Barr, Birmingham, B43 6AA
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 29 July 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Birmingham
Other active specialist construction companies registered in Birmingham.
- S.L. Mont (Subsidiary) Limited2025
- Safehaven Damp Control Ltd2025
- Sam Welding Ltd2023
- Samergency Services Ltd2026
- Samirahadi Company Ltd2026
- Sanctuary Supplies Ltd2024
- Santos & Fonseca Ltd2021
- Sarce Limited2016
All specialist construction companies in Birmingham · All trades in Birmingham · Specialist contractors across the UK
Frequently asked questions
When are S.E.D. Concepts Ltd's accounts due?
S.E.D. Concepts Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is S.E.D. Concepts Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is S.E.D. Concepts Ltd still trading?
S.E.D. Concepts 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 S.E.D. Concepts Ltd do?
S.E.D. Concepts Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is S.E.D. Concepts Ltd?
S.E.D. Concepts Ltd was incorporated on 30 July 2021, 5 years ago.
What is the penalty if S.E.D. Concepts 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 S.E.D. Concepts 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.