- Companies
- Property developers
- King's Lynn
- M Williamson Developments Limited
M Williamson Developments Limited
- Company number
- 06589524
- Incorporated
- 10 May 200818 years trading
- Registered office
- Unit 5E Derby Field Farm Leziate Drove, Pott Row, King's Lynn, PE32 1DE
- Nature of business
- Development of building projects
M Williamson Developments Limited is a 18-year-old private limited company registered in King's Lynn, company number 06589524, one of 133 property development companies in King's Lynn. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.
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 up £7,370 (+29.5%) on the year before, to £32K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £33K against £40K owed within a year: 0.8 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £32K | £33K | £40K | 1 | |
| 31 Jan 2024 | £25K | £1,098 | £6,661 | 1 | |
| 31 Jan 2023 | £16K | £16K | £13K | 1 | |
| 31 Jan 2022 | £12K | £1,925 | £2,929 | 1 | |
| 31 Jan 2021 | £9,171 | £111K | £2,334 | 1 | |
| 31 Jan 2020 | £15K | £10K | £2,334 | 1 | |
| 31 Jan 2019 | £6,990 | £1,412 | £15K | ||
| 31 Jan 2018 | £4,268 | £155K | £158K | ||
| 31 Jan 2017 | -£34K | £116K | £176K | ||
| 31 Jan 2016 | -£18K | £13K | £43K | £80K |
Where M Williamson Developments Limited is registered
The registered office is in King's Lynn (PE32), in the King's Lynn and West Norfolk local authority area, East of England. Show PE32 1DE on a map.
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What happens if M Williamson 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 06589524
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 May 2008 (18 years ago)
- Registered office
- Unit 5E Derby Field Farm Leziate Drove, Pott Row, King's Lynn, PE32 1DE
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 10 May 2026
- Previous names
- Bonza Family Limited (until 12 Jun 2009)
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 King's Lynn
Other active property development companies registered in King's Lynn.
- Marlin Holdings (Norfolk) Limited2012
- Massen Properties Limited2017
- Matt Sturgeon Limited2015
- MG Building Maintenance Ltd2025
- Mike Gilbert Building Services Limited2004
- MJS Install Limited2024
- Mvdeviseholdings Ltd2026
- North Beach Estates Limited2021
All property development companies in King's Lynn · All trades in King's Lynn · Property developers across the UK
Frequently asked questions
When are M Williamson Developments Limited's accounts due?
M Williamson Developments Limited's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is M Williamson Developments Limited's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is M Williamson Developments Limited still trading?
M Williamson 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 Williamson Developments Limited do?
M Williamson Developments Limited is registered under Development of building projects (SIC 41100).
How old is M Williamson Developments Limited?
M Williamson Developments Limited was incorporated on 10 May 2008, 18 years ago.
What is the penalty if M Williamson 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 Williamson 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.