- Company number
- 13033997
- Incorporated
- 20 Nov 20205 years trading
- Registered office
- 174 Tooting High Street, London, SW17 0RT
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Real estate agencies
B1 Endeavors Ltd is a 5-year-old private limited company registered in London, company number 13033997, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 unchanged on the year before, at £21K.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- Current assets of £164K against £143K owed within a year: 1.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £21K | £164K | £143K | 0 | |
| 30 Nov 2024 | £21K | £164K | £143K | 0 | |
| 30 Nov 2023 | £21K | £164K | £143K | 1 | |
| 30 Nov 2022 | £3,761 | £124K | £117K | 1 | |
| 30 Nov 2021 | £3,916 | £23K | £36K | £32K | 1 |
Where B1 Endeavors Ltd is registered
The registered office is in London (SW17), in the Wandsworth local authority area, London. Show SW17 0RT on a map.
Other trade companies in SW17
- PTL - Patton Trades and Labour LtdSpecialist contractors
- 24H Swift Tyres LimitedMechanics and garages
- Albiani LtdBuilders
- ZĀD Homes LimitedProperty developers
- Cousins Motors LtdMotor traders
- A J W Scaffolding LimitedScaffolders
- Dark Grey Construction LtdBuilders
- Ad Property LtdProperty developers
Also registered at this address
4 other companies use the same registered office as B1 Endeavors Ltd.
- Concept Building Work UK LimitedBuilders
- Concept Development & Investment LimitedFinishing trades
- Concept London Road LimitedBuilders
- Eysi Investment LtdProperty developers
What happens if B1 Endeavors 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 13033997
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 November 2020 (5 years ago)
- Registered office
- 174 Tooting High Street, London, SW17 0RT
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Real estate agencies (SIC 68310) - Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 19 November 2025
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.
- B2 Construction Project Management Ltd2020
- Ba Builder Limited2024
- Ba Lifting Operations Ltd2024
- Ba&H Construction Ltd2021
- Baani Raj Ltd2026
- Baban Construction Ltd2026
- Babayigit Ltd2020
- Babelsky 2 Holdings Ltd2025
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are B1 Endeavors Ltd's accounts due?
B1 Endeavors Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is B1 Endeavors Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is B1 Endeavors Ltd still trading?
B1 Endeavors 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 B1 Endeavors Ltd do?
B1 Endeavors Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Real estate agencies (SIC 68310).
How old is B1 Endeavors Ltd?
B1 Endeavors Ltd was incorporated on 20 November 2020, 5 years ago.
What is the penalty if B1 Endeavors 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 B1 Endeavors 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.