- Companies
- Property developers
- Birmingham
- Diamantem Developments Limited
Company profile · Property developers
Diamantem Developments Limited
Diamantem Developments Limited is a 2-year-old private limited company registered in Birmingham, company number 15303191, one of 1,027 property development companies in Birmingham. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Diamantem Developments LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Where Diamantem Developments Limited is registered
The registered office is in Birmingham (B3), in the Birmingham local authority area, West Midlands. Show B3 2HJ on a map.
Other trade companies in B3
- Claim Back LtdMechanics and garages
- G.Monie Auto LimitedMotor traders
- Contegra Technical Services LimitedCleaning companies
- Jorah LimitedPainters and decorators
- JDL Solar LimitedElectricians
- Nexafitout LtdBuilders
- Drivenglobaluk LtdMotor traders
- Studio Edge LtdInstallers
Also registered at this address
4 other companies use the same registered office as Diamantem Developments Limited.
- Clan Glow LimitedProperty developers
- Hudson Kapel Auctions LimitedMotor traders
- Hudson Kapel Fleet Solutions LtdMechanics and garages
- Langley Sustainable Urban Extension LimitedProperty developers
What happens if Diamantem Developments 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 15303191
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 November 2023 (2 years ago)
- Registered office
- One Eleven, Edmund Street, Birmingham, B3 2HJ
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 21 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 Birmingham
Other active property development companies registered in Birmingham.
- Diamond Consultants Ltd2010
- Dio Properties Ltd2021
- Direct Building Services (Midlands) Ltd2025
- Direct Installation Services Ltd2019
- Divine Rail Ltd2026
- Dlshad Builder Ltd2024
- DMP Property & Development Limited2017
- DNS Capital Group Ltd2021
All property development companies in Birmingham · All trades in Birmingham · Property developers across the UK
Frequently asked questions
When are Diamantem Developments Limited's accounts due?
Diamantem Developments Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Diamantem Developments Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Diamantem Developments Limited still trading?
Diamantem Developments 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 Diamantem Developments Limited do?
Diamantem Developments Limited is registered under Development of building projects (SIC 41100).
How old is Diamantem Developments Limited?
Diamantem Developments Limited was incorporated on 22 November 2023, 2 years ago.
What is the penalty if Diamantem Developments 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 Diamantem Developments 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.