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- Mon Builders Limited
Company profile · Builders
Mon Builders Limited
Mon Builders Limited is a 11-year-old private limited company registered in Colwyn Bay, company number 09573379, one of 16 building contractors 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 Builders Limited 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 £14K (+64.2%) on the year before, to £35K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £39K against £4,348 owed within a year: 9.0 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 | £35K | £39K | £4,348 | 0 | |
| 5 Apr 2025 | £21K | £52K | £29K | 0 | |
| 5 Apr 2024 | -£5,782 | £24K | £27K | £40K | 2 |
| 5 Apr 2023 | £14K | £34K | £94K | £87K | 2 |
| 5 Apr 2022 | £18K | £52K | £108K | £97K | 2 |
| 5 Apr 2021 | £21K | £65K | £123K | £109K | 2 |
| 5 Apr 2020 | £24K | £32K | £132K | £116K | |
| 5 Apr 2019 | £32K | £12K | £156K | £95K | |
| 5 Apr 2018 | £18K | £9,976 | £47K | £28K | |
| 5 Apr 2017 | £13K | £33K | £33K | £20K |
Where Mon Builders Limited 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 Builders Limited.
- Alternative Cleaning Solutions (NW) LtdCleaning companies
- Mon Developers LtdProperty developers
What happens if Mon Builders 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 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
- 09573379
- 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
- Construction of domestic buildings (SIC 41202)
- 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 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 Colwyn Bay
Other active building contractors registered in Colwyn Bay.
- P H Evans Plumbing Ltd2019
- Probuild Construction (Llandudno) Ltd2019
- S2B Refurb Limited2026
- Warwyn Homes Ltd2022
- Bodnant Construction Ltd2023
- Cambria Homes Limited1994
- Doran Construction Ltd2023
- Evans, Wilson and Evans Limited1987
All building contractors in Colwyn Bay · All trades in Colwyn Bay · Builders across the UK
Frequently asked questions
When are Mon Builders Limited's accounts due?
Mon Builders Limited'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 Builders Limited'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 Builders Limited still trading?
Mon Builders 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 Mon Builders Limited do?
Mon Builders Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Mon Builders Limited?
Mon Builders Limited was incorporated on 5 May 2015, 11 years ago.
What is the penalty if Mon Builders 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 Mon Builders 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.