- Companies
- Property developers
- Chessington
- Mah123 Limited
Mah123 Limited
- Company number
- 10421069
- Incorporated
- 11 Oct 201610 years trading
- Registered office
- 23 Moor Lane, Chessington, KT9 1BJ
- Nature of business
- Development of building projects
Mah123 Limited is a 10-year-old private limited company registered in Chessington, company number 10421069, one of 32 property development companies in Chessington. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 down £11K (-49.2%) on the year before, to -£32K.
- Net assets rose in 2 of 8 year-on-year comparisons on record.
- Current assets of £2,038 against £40K owed within a year: 0.1 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | -£32K | £2,038 | £40K | 2 | |
| 31 Oct 2024 | -£21K | £236 | £30K | 2 | |
| 31 Oct 2023 | -£11K | £43 | £11K | 1 | |
| 31 Oct 2022 | -£2,471 | £145 | £2,616 | 1 | |
| 31 Oct 2021 | £860 | £5,354 | £4,494 | 1 | |
| 31 Oct 2020 | £1,842 | £3,000 | £1,158 | 1 | |
| 31 Oct 2019 | £3,239 | £4,742 | £1,503 | 1 | |
| 31 Oct 2018 | £1,875 | £3,277 | £1,402 | ||
| 31 Oct 2017 | £2 |
Where Mah123 Limited is registered
The registered office is in Chessington (KT9), in the Kingston upon Thames local authority area, London. Show KT9 1BJ on a map.
Other trade companies in KT9
- Veltra Projects LtdFinishing trades
- UK Handy Team LtdSpecialist contractors
- KTS Prime Builders LtdBuilders
- Gina’S Cleaners LimitedCleaning companies
- Basharautos LtdMechanics and garages
- W F Restoration Co LtdFloor and wall tilers
- Garden Living Rooms LtdBuilders
- Jso Design & Build LtdBuilders
What happens if Mah123 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 10421069
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 October 2016 (10 years ago)
- Registered office
- 23 Moor Lane, Chessington, KT9 1BJ
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 8 August 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 Chessington
Other active property development companies registered in Chessington.
- Meridian & Hearth Ltd2026
- MHB & Sons Limited2025
- NR Estates Ltd2022
- Oakmoore Homes Ltd2018
- Oakmoore Homes Services Ltd2024
- Pa Design and Build Limited2025
- Richest Construction Ltd2021
- Rizzi Building Contractors Limited2024
All property development companies in Chessington · All trades in Chessington · Property developers across the UK
Frequently asked questions
When are Mah123 Limited's accounts due?
Mah123 Limited's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Mah123 Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Mah123 Limited still trading?
Mah123 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 Mah123 Limited do?
Mah123 Limited is registered under Development of building projects (SIC 41100).
How old is Mah123 Limited?
Mah123 Limited was incorporated on 11 October 2016, 10 years ago.
What is the penalty if Mah123 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 Mah123 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.