- Company number
- 17242518
- Incorporated
- 26 May 2026
- Registered office
- 167-169 Great Portland Street, London, W1W 5PF
- Nature of business
- Construction of domestic buildings
Build Smarter Ltd is a newly incorporated private limited company registered in London, company number 17242518, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 26 February 2028, and its first CT600 is due at HMRC on 25 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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Where Build Smarter Ltd is registered
The registered office is in London (W1W), in the Westminster local authority area, London. Show W1W 5PF on a map.
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Shared registered office
1,494 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 Build Smarter 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 26 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 27 Feb 2028 to 26 Mar 2028 | £150 |
| 1 to 3 months late | 27 Mar 2028 to 26 May 2028 | £375 |
| 3 to 6 months late | 27 May 2028 to 26 Aug 2028 | £750 |
| More than 6 months late | From 27 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
- 17242518
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 May 2026
- Registered office
- 167-169 Great Portland Street, London, W1W 5PF
- 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 London
Other active building contractors registered in London.
- Build Space Construction Services Limited2020
- Build Team Holborn Limited2010
- Build UK Properties Ltd2024
- Build With Love Ltd2026
- Build&Tech Limited2019
- Build4 Team Ltd2019
- Buildam Ltd2024
- Buildary Ltd2024
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Build Smarter Ltd's accounts due?
Build Smarter Ltd's next accounts are due at Companies House by 26 February 2028 (in 502 days), covering the period to 31 May 2027.
When is Build Smarter 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 25 May 2027, due by 25 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 Build Smarter Ltd still trading?
Build Smarter 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 Build Smarter Ltd do?
Build Smarter Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Build Smarter Ltd?
Build Smarter Ltd was incorporated on 26 May 2026, less than a year ago.
What is the penalty if Build Smarter 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 Build Smarter 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.