- Company number
- 13813401
- Incorporated
- 22 Dec 20214 years trading
- Registered office
- The Old School House, West Street, Southwick, Hants, PO17 6EA
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings
M Brown Developments Limited is a 4-year-old private limited company registered in Southwick, company number 13813401, one of the UK's building contractors. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 down £7,752 (-30.4%) on the year before, to £18K.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £28K against £15K owed within a year: 1.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 4 years, 2023 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £18K | £28K | £15K | 1 | |
| 31 Mar 2025 | £25K | £41K | £22K | 1 | |
| 31 Mar 2024 | £38K | £62K | £28K | 1 | |
| 31 Mar 2023 | £21K | £35K | £18K | 1 |
Who runs and owns M Brown Developments Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| M*** B*** | Director | Dec 2021 |
Person with significant control
Where M Brown Developments Limited is registered
The registered office is in Southwick (PO17), in the Winchester local authority area, South East. Show PO17 6EA on a map.
Other trade companies in PO17
- Roofing Transformers LtdRoofers
- JFS Building Services LtdLandscapers and gardeners
- Jacobs Auto Repairs LtdMechanics and garages
- JK Land & Property LtdProperty developers
- A R Banks Civil Engineering LtdCivil engineering
- Hounds Maintenance Solutions LtdMechanics and garages
- The Coastal Exterior Company LtdCleaning companies
- Bere Forest Tree Services & Milling LtdLandscapers and gardeners
Also registered at this address
6 other companies use the same registered office as M Brown Developments Limited.
- Mirah Building Services Design LimitedFinishing trades
- P & P Car & Camper Sales LtdMotor traders
- RC Carpentry & Building LimitedJoiners and carpenters
- Sci Projects LimitedFinishing trades
- TZ Property Holdings LimitedProperty developers
- Yampa Motors LimitedMotor traders
What happens if M Brown 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 13813401
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 December 2021 (4 years ago)
- Registered office
- The Old School House, West Street, Southwick, Hants, PO17 6EA
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 14 December 2025
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 Southwick
Other active building contractors registered in Southwick.
All building contractors in Southwick · All trades in Southwick · Builders across the UK
Frequently asked questions
When are M Brown Developments Limited's accounts due?
M Brown Developments Limited's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is M Brown Developments Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is M Brown Developments Limited still trading?
M Brown 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 M Brown Developments Limited do?
M Brown Developments Limited is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is M Brown Developments Limited?
M Brown Developments Limited was incorporated on 22 December 2021, 4 years ago.
Who runs M Brown Developments Limited?
M Brown Developments Limited has 1 active director, the longest-serving appointed in Dec 2021. Their names and service addresses are on the Companies House register.
Who owns M Brown Developments Limited?
One person or company has significant control of M Brown Developments Limited: an individual (owns 75% or more of the shares).
What is the penalty if M Brown 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 M Brown 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.