- Companies
- Property developers
- Maidenhead
- A4 Builders Limited
A4 Builders Limited
- Company number
- 12687146
- Incorporated
- 20 Jun 20206 years trading
- Registered office
- A4 Builders Ltd Office 128, 5 High Street, Maidenhead, SL6 1JN
- Nature of business
- Development of building projects; Construction of commercial buildings; Construction of domestic buildings; Demolition
A4 Builders Limited is a 6-year-old private limited company registered in Maidenhead, company number 12687146, one of 117 property development companies in Maidenhead. Its next accounts are due at Companies House on 31 March 2028, and the CT600 for the period to 30 June 2027 is due at HMRC on 30 June 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where A4 Builders Limited is registered
The registered office is in Maidenhead (SL6), in the Windsor and Maidenhead local authority area, South East. Show SL6 1JN on a map.
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- Woodnest Interiors LtdJoiners and carpenters
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What happens if A4 Builders 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 31 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2028 to 30 Apr 2028 | £150 |
| 1 to 3 months late | 1 May 2028 to 30 Jun 2028 | £375 |
| 3 to 6 months late | 1 Jul 2028 to 30 Sep 2028 | £750 |
| More than 6 months late | From 1 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 12687146
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 June 2020 (6 years ago)
- Registered office
- A4 Builders Ltd Office 128, 5 High Street, Maidenhead, SL6 1JN
- Nature of business
- Development of building projects (SIC 41100)
Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Demolition (SIC 43110) - Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2026
- Last confirmation statement
- 1 June 2026
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Maidenhead
Other active property development companies registered in Maidenhead.
- A41 Estates Limited2025
- Adams & Wade(Maidenhead)Limited1963
- Ajellis Properties Ltd2015
- Altwood Housing Group Limited2022
- Appleseed Properties Limited2018
- Archum Limited2025
- Ardent Developments (Europe) Ltd2020
- Arj Property Ventures Ltd2026
All property development companies in Maidenhead · All trades in Maidenhead · Property developers across the UK
Frequently asked questions
When are A4 Builders Limited's accounts due?
A4 Builders Limited's next accounts are due at Companies House by 31 March 2028 (in 536 days), covering the period to 30 June 2027.
When is A4 Builders Limited's CT600 due?
The CT600 for the period to 30 June 2027 is due at HMRC by 30 June 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2028.
Is A4 Builders Limited still trading?
A4 Builders 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 A4 Builders Limited do?
A4 Builders Limited is registered under Development of building projects (SIC 41100); Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Demolition (SIC 43110).
How old is A4 Builders Limited?
A4 Builders Limited was incorporated on 20 June 2020, 6 years ago.
What is the penalty if A4 Builders 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 A4 Builders 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.