- Companies
- Finishing trades
- London
- Concept Construction & Supply Limited
Concept Construction & Supply Limited
- Company number
- 06243502
- Incorporated
- 10 May 200719 years trading
- Registered office
- C J House 99A Cobbold Road, Willesden, London, NW10 9SL
- Nature of business
- Other building completion and finishing
Concept Construction & Supply Limited is a 19-year-old private limited company registered in London, company number 06243502, one of 3,947 building finishing companies in London. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 30 May 2026 is due at HMRC on 30 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 £827 (-0.6%) on the year before, to £136K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £257K against £110K owed within a year: 2.3 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £136K | £1,610 | £257K | £110K | 1 |
| 31 May 2024 | £137K | £20K | £250K | £101K | 1 |
| 31 May 2023 | £86K | £59K | £193K | £78K | 1 |
| 31 May 2022 | £1,926 | £12K | £101K | £52K | 1 |
| 31 May 2021 | £1 | 1 | |||
| 31 May 2020 | £8,329 | £45K | £55K | £46K | 1 |
| 31 May 2019 | £23K | £51K | £66K | £40K | |
| 31 May 2018 | £28K | £24K | £79K | £44K | |
| 31 May 2017 | £165K | £287K | £122K | ||
| 31 May 2016 | £32K | £94K | £115K | £83K |
Where Concept Construction & Supply Limited is registered
The registered office is in London (NW10), in the Brent local authority area, London. Show NW10 9SL on a map.
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- Mah Maintenance London LimitedFinishing trades
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- Ahf Construction LtdBuilders
- Hook and Hoist LtdMachinery repair and installation
- Wrights Building Services LtdFinishing trades
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Also registered at this address
2 other companies use the same registered office as Concept Construction & Supply Limited.
- Cibco Construction LimitedFinishing trades
- Lux Renovations LtdFinishing trades
What happens if Concept Construction & Supply 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 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 | 31 May 2027 | £200 |
| 3 months late | 30 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 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
- 06243502
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 May 2007 (19 years ago)
- Registered office
- C J House 99A Cobbold Road, Willesden, London, NW10 9SL
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 30 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 10 May 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in London
Other active building finishing companies registered in London.
- Concept Development & Investment Limited2003
- Conduct Construction Ltd2014
- Conectar Limited2014
- Confidence Cleaning Service Group Ltd2025
- Confluence Holdings Ltd2026
- Connate.Io Limited2018
- Connolly General Contractors Limited2025
- Conraz Solutions Ltd2017
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are Concept Construction & Supply Limited's accounts due?
Concept Construction & Supply Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 30 May 2026.
When is Concept Construction & Supply Limited's CT600 due?
The CT600 for the period to 30 May 2026 is due at HMRC by 30 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Concept Construction & Supply Limited still trading?
Concept Construction & Supply 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 Concept Construction & Supply Limited do?
Concept Construction & Supply Limited is registered under Other building completion and finishing (SIC 43390).
How old is Concept Construction & Supply Limited?
Concept Construction & Supply Limited was incorporated on 10 May 2007, 19 years ago.
What is the penalty if Concept Construction & Supply 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 Concept Construction & Supply 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.