- Companies
- Builders
- Covent Garden
- A1 Professional Builders Ltd
A1 Professional Builders Ltd
- Company number
- 07765366
- Incorporated
- 7 Sep 201115 years trading
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Other information technology service activities; Buying and selling of own real estate
A1 Professional Builders Ltd is a 15-year-old private limited company registered in Covent Garden, company number 07765366, one of 418 building contractors in Covent Garden. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £491 (+7.1%) on the year before, to -£6,423.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £40K against £28K owed within a year: 1.4 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 |
|---|---|---|---|---|---|
| 30 Sep 2025 | -£6,423 | £40K | £28K | 0 | |
| 30 Sep 2024 | -£6,914 | £59K | £48K | 0 | |
| 30 Sep 2023 | -£7,455 | £59K | £16K | 0 | |
| 30 Sep 2022 | -£7,972 | £58K | £16K | 0 | |
| 30 Sep 2021 | -£8,560 | £58K | £16K | 1 | |
| 30 Sep 2020 | £29K | £102K | £73K | 2 | |
| 30 Sep 2019 | £2 | £1 | |||
| 30 Sep 2018 | £2 | ||||
| 30 Sep 2017 | £2 | ||||
| 30 Sep 2016 | £2 |
Where A1 Professional Builders Ltd is registered
The registered office is in Covent Garden (WC2H), in the Camden local authority area, London. Show WC2H 9JQ on a map.
Other trade companies in WC2H
- Superclean Agency LtdCleaning companies
- Sal Cleaning LtdCleaning companies
- Cityshine Facilities Services LtdCleaning companies
- Pureoceanscleaning LtdCleaning companies
- Muca Property Group LimitedProperty developers
- E.L.G.G LtdJoiners and carpenters
- First Ascentia Integrated LtdCleaning companies
- Fixing London LtdSpecialist contractors
Shared registered office
4,529 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 A1 Professional Builders 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £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
- 07765366
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 September 2011 (15 years ago)
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other information technology service activities (SIC 62090)
Buying and selling of own real estate (SIC 68100) - Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 28 June 2026
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 Covent Garden
Other active building contractors registered in Covent Garden.
- Aaa Project Services Ltd2024
- Aba Trades Ltd2026
- Advanced Network Group Ltd2026
- Ah & Son's Construction Ltd2025
- Ak Construction SW Ltd2024
- Akz Trade Group Ltd2026
- Al Khairon for Trading and General Contracting Ltd2025
- All Season Property & Projects Ltd2026
All building contractors in Covent Garden · All trades in Covent Garden · Builders across the UK
Frequently asked questions
When are A1 Professional Builders Ltd's accounts due?
A1 Professional Builders Ltd's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is A1 Professional Builders Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is A1 Professional Builders Ltd still trading?
A1 Professional Builders 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 A1 Professional Builders Ltd do?
A1 Professional Builders Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other information technology service activities (SIC 62090); Buying and selling of own real estate (SIC 68100).
How old is A1 Professional Builders Ltd?
A1 Professional Builders Ltd was incorporated on 7 September 2011, 15 years ago.
What is the penalty if A1 Professional Builders 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 A1 Professional Builders 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.