- Companies
- Property developers
- Colwyn Bay
- Mary Bamber Developments Limited
Mary Bamber Developments Limited
- Company number
- 13444346
- Incorporated
- 8 Jun 20215 years trading
- Registered office
- Maes Isa Bryn Rhys, Glan Conwy, Colwyn Bay, LL28 5NS
- Nature of business
- Development of building projects
Mary Bamber Developments Limited is a 5-year-old private limited company registered in Colwyn Bay, company number 13444346, one of 24 property development companies in Colwyn Bay. Companies House shows its accounts as overdue: they were due on 31 July 2026.
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 £349K (+18.6%) on the year before, to -£1.5M.
- -2 employees on average, down from 0 the year before.
- Balance sheets on record for 3 years, 2022 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2024 | -£1.5M | £1.5M | -2 | ||
| 31 Oct 2023 | -£1.9M | £560 | £7.3M | £3.9M | 0 |
| 31 Oct 2022 | -£921K | £1,488 | £7.3M | £3.1M | 0 |
Where Mary Bamber Developments Limited is registered
The registered office is in Colwyn Bay (LL28), in the Conwy local authority area, Wales. Show LL28 5NS on a map.
Other trade companies in LL28
- Giraffe Systems LtdMachinery repair and installation
- Studio Majoros LimitedFinishing trades
- Mochdre Developments LimitedBuilders
- Supply & Demand Electrical Solutions LtdElectricians
- Newall's Green Spaces LtdLandscapers and gardeners
- DBNL Construction LtdSpecialist contractors
- Laser Pure Surface Restoration LimitedRepair services
- NW Rendering LtdPlasterers
Also registered at this address
1 other company uses the same registered office as Mary Bamber Developments Limited.
- 2512 Developments LimitedProperty developers
What happens if Mary Bamber Developments Limited 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 | 1 Aug 2026 to 31 Aug 2026 | £150 |
| 1 to 3 months late | 1 Sep 2026 to 31 Oct 2026 | £375 |
| 3 to 6 months late | 1 Nov 2026 to 31 Jan 2027 | £750 |
| More than 6 months late | From 1 Feb 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2026 | £200 |
| 3 months late | 31 Jan 2027 | another £200 |
| 6 months late | 30 Apr 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 13444346
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 June 2021 (5 years ago)
- Registered office
- Maes Isa Bryn Rhys, Glan Conwy, Colwyn Bay, LL28 5NS
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2024
- Last confirmation statement
- 7 June 2026
- Charges (mortgages)
- 5 outstanding of 5 registered
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 Colwyn Bay
Other active property development companies registered in Colwyn Bay.
- Mon Developers Ltd2015
- Nesl Construction Ltd2023
- Northfield Property Developments Limited2018
- NS Dineen Ltd2018
- Pengarnedd Properties Limited1989
- Quays to Castles Limited2020
- Roberts Building & Plastering Limited2024
- Rocky Lane Developments Limited2018
All property development companies in Colwyn Bay · All trades in Colwyn Bay · Property developers across the UK
Frequently asked questions
When are Mary Bamber Developments Limited's accounts due?
Mary Bamber Developments Limited's accounts were due at Companies House on 31 July 2026 and the register shows them as overdue.
When is Mary Bamber Developments Limited's CT600 due?
The CT600 for the period to 31 October 2025 is due at HMRC by 31 October 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2026.
Is Mary Bamber Developments Limited still trading?
Mary Bamber Developments Limited 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 Mary Bamber Developments Limited do?
Mary Bamber Developments Limited is registered under Development of building projects (SIC 41100).
How old is Mary Bamber Developments Limited?
Mary Bamber Developments Limited was incorporated on 8 June 2021, 5 years ago.
What is the penalty if Mary Bamber 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 Mary Bamber Developments Limited 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.