- Companies
- Property developers
- Northwood
- Blackmansion Ltd
Blackmansion Ltd
- Company number
- 16574005
- Incorporated
- 10 Jul 20251 year trading
- Registered office
- 124 Hallowell Road, Northwood, HA6 1DU
- Nature of business
- Development of building projects
Blackmansion Ltd is a 1-year-old private limited company registered in Northwood, company number 16574005, one of 76 property development companies in Northwood. Its next accounts are due at Companies House on 10 April 2027, and its first CT600 is due at HMRC on 9 July 2027.
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 Blackmansion Ltd is registered
The registered office is in Northwood (HA6), in the Hillingdon local authority area, London. Show HA6 1DU on a map.
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What happens if Blackmansion 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 10 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 11 Apr 2027 to 10 May 2027 | £150 |
| 1 to 3 months late | 11 May 2027 to 10 Jul 2027 | £375 |
| 3 to 6 months late | 11 Jul 2027 to 10 Oct 2027 | £750 |
| More than 6 months late | From 11 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 16574005
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 July 2025 (1 year ago)
- Registered office
- 124 Hallowell Road, Northwood, HA6 1DU
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 9 July 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 Northwood
Other active property development companies registered in Northwood.
- Brill (Rural Property) Limited2026
- Brook Century Developments Limited2026
- Brookpark Developments Limited2007
- Bros Property Holdings Ltd2015
- Build Right Homes Limited2003
- Bushey Residential Limited2021
- Capel Cottage Estates Ltd2023
- Caprica Development Ltd2024
All property development companies in Northwood · All trades in Northwood · Property developers across the UK
Frequently asked questions
When are Blackmansion Ltd's accounts due?
Blackmansion Ltd's next accounts are due at Companies House by 10 April 2027 (in 179 days), covering the period to 31 July 2026.
When is Blackmansion 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 9 July 2026, due by 9 July 2027, and one for the period to 31 July 2026, due by 31 July 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Blackmansion Ltd still trading?
Blackmansion Ltd is listed as active on the Companies House register (checked 12 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 Blackmansion Ltd do?
Blackmansion Ltd is registered under Development of building projects (SIC 41100).
How old is Blackmansion Ltd?
Blackmansion Ltd was incorporated on 10 July 2025, 1 year ago.
What is the penalty if Blackmansion 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 Blackmansion Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.