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- Colwyn Bay
- Mon Developers Ltd
Company profile · Property developers
Mon Developers Ltd
Mon Developers Ltd is a 11-year-old private limited company registered in Colwyn Bay, company number 09573306, one of 24 property development companies in Colwyn Bay. Its next accounts are due at Companies House on 5 January 2028, and the CT600 for the period to 5 April 2027 is due at HMRC on 5 April 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 5 April 2026, as filed at Companies House.
Mon Developers Ltd over the years
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 £49K (+157.9%) on the year before, to £18K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £139K against £132K owed within a year: 1.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 5 Apr 2026 | £18K | £139K | £132K | 0 | |
| 5 Apr 2025 | -£31K | £114K | £143K | 0 | |
| 5 Apr 2024 | -£6,610 | £204K | £206K | £213K | 2 |
| 5 Apr 2023 | -£68K | £123K | £257K | £326K | 2 |
| 5 Apr 2022 | -£61K | £140K | £268K | £329K | 2 |
| 5 Apr 2021 | -£141K | £102K | £129K | £270K | 2 |
| 5 Apr 2020 | -£104K | £42K | £144K | £248K | |
| 5 Apr 2019 | £51K | £5,041 | £260K | £209K | |
| 5 Apr 2018 | £37K | £11K | £211K | £174K | |
| 5 Apr 2017 | £23K | £35K | £36K | £12K |
Where Mon Developers Ltd is registered
The registered office is in Colwyn Bay (LL29), in the Conwy local authority area, Wales. Show LL29 7UG on a map.
Other trade companies in LL29
- Minami Solutions LtdCleaning companies
- L & B Maintenance Services LtdCleaning companies
- Mansfield Air Conditioning LtdPlumbers and heating engineers
- Capital Lifecycle Construction Advisory LtdCivil engineering
- HGJ Enterprises LimitedElectricians
- Coastal Roofcare LimitedRoofers
- Mobility Motor Company MMC LtdMotor traders
- CM Surfacing & Landscaping LtdSpecialist contractors
Also registered at this address
2 other companies use the same registered office as Mon Developers Ltd.
- Alternative Cleaning Solutions (NW) LtdCleaning companies
- Mon Builders LimitedBuilders
What happens if Mon Developers 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 5 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 6 Jan 2028 to 5 Feb 2028 | £150 |
| 1 to 3 months late | 6 Feb 2028 to 5 Apr 2028 | £375 |
| 3 to 6 months late | 6 Apr 2028 to 5 Jul 2028 | £750 |
| More than 6 months late | From 6 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 6 Apr 2028 | £200 |
| 3 months late | 5 Jul 2028 | another £200 |
| 6 months late | 5 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 5 Apr 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
- 09573306
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 May 2015 (11 years ago)
- Registered office
- 7 Park Road, Colwyn Bay, LL29 7UG
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 5 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 5 April 2026
- Last confirmation statement
- 5 May 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 Colwyn Bay
Other active property development companies registered in Colwyn Bay.
- 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
- Roebuck Property Development Ltd2025
All property development companies in Colwyn Bay · All trades in Colwyn Bay · Property developers across the UK
Frequently asked questions
When are Mon Developers Ltd's accounts due?
Mon Developers Ltd's next accounts are due at Companies House by 5 January 2028 (in 450 days), covering the period to 5 April 2027.
When is Mon Developers Ltd's CT600 due?
The CT600 for the period to 5 April 2027 is due at HMRC by 5 April 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 6 January 2028.
Is Mon Developers Ltd still trading?
Mon Developers Ltd 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 Mon Developers Ltd do?
Mon Developers Ltd is registered under Development of building projects (SIC 41100).
How old is Mon Developers Ltd?
Mon Developers Ltd was incorporated on 5 May 2015, 11 years ago.
What is the penalty if Mon Developers 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 Mon Developers Ltd 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.