- Companies
- Property developers
- London
- RDB Builders & Merchants Ltd
RDB Builders & Merchants Ltd
- Company number
- 16086345
- Incorporated
- 18 Nov 20241 year trading
- Registered office
- Flat 52, Comber Grove, London, SE5 0LJ
- Nature of business
- Development of building projects; Other building completion and finishing
RDB Builders & Merchants Ltd is a 1-year-old private limited company registered in London, company number 16086345, one of 14,100 property development companies in London. Companies House shows its accounts as overdue: they were due on 18 August 2026.
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 RDB Builders & Merchants Ltd is registered
The registered office is in London (SE5), in the Southwark local authority area, London. Show SE5 0LJ on a map.
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What happens if RDB Builders & Merchants Ltd files late
If the accounts reach Companies House today, the late filing penalty is £375 (£750 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 19 Aug 2026 to 18 Sep 2026 | £150 |
| 1 to 3 months late | 19 Sep 2026 to 18 Nov 2026 | £375 |
| 3 to 6 months late | 19 Nov 2026 to 18 Feb 2027 | £750 |
| More than 6 months late | From 19 Feb 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2026 | £200 |
| 3 months late | 28 Feb 2027 | another £200 |
| 6 months late | 30 May 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 2027 | 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
- 16086345
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 November 2024 (1 year ago)
- Registered office
- Flat 52, Comber Grove, London, SE5 0LJ
- Nature of business
- Development of building projects (SIC 41100)
Other building completion and finishing (SIC 43390) - Year end
- 30 November (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 17 November 2025
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 London
Other active property development companies registered in London.
- RDG Corp Limited2026
- RDG Dec Ltd2019
- RDK Building Services Ltd2023
- RDL Enterprises Ltd2023
- RDL1 Limited2016
- RDS Promotions Ltd2020
- RDS Property Solutions Limited2025
- RDS-NW Ltd2024
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are RDB Builders & Merchants Ltd's accounts due?
RDB Builders & Merchants Ltd's accounts were due at Companies House on 18 August 2026 and the register shows them as overdue.
When is RDB Builders & Merchants 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 17 November 2025, due by 17 November 2026, and one for the period to 30 November 2025, due by 30 November 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is RDB Builders & Merchants Ltd still trading?
RDB Builders & Merchants Ltd is listed as active on the Companies House register (checked 13 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 RDB Builders & Merchants Ltd do?
RDB Builders & Merchants Ltd is registered under Development of building projects (SIC 41100); Other building completion and finishing (SIC 43390).
How old is RDB Builders & Merchants Ltd?
RDB Builders & Merchants Ltd was incorporated on 18 November 2024, 1 year ago.
What is the penalty if RDB Builders & Merchants 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 RDB Builders & Merchants Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.