- Company number
- 12648232
- Incorporated
- 5 Jun 20206 years trading
- Registered office
- Market House, 21 Lenten Street, Alton, GU34 1HG
- Nature of business
- Construction of domestic buildings; Plumbing, heat and air-conditioning installation
WM Building Ltd is a 6-year-old private limited company registered in Alton, company number 12648232, one of 34 building contractors in Alton. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £32K (-93%) on the year before, to £2,403.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- Current assets of £14K against £15K owed within a year: 1.0 times cover.
- 3 employees on average, down from 4 the year before.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £2,403 | £3,832 | £14K | £15K | 3 |
| 31 May 2024 | £34K | £11K | £46K | £15K | 4 |
| 31 May 2023 | £39K | £39K | £57K | £24K | 3 |
| 31 May 2022 | £4,200 | £2,671 | £12K | £17K | 2 |
| 31 May 2021 | £15K | £19K | £9,103 | 2 |
Where WM Building Ltd is registered
The registered office is in Alton (GU34), in the East Hampshire local authority area, South East. Show GU34 1HG on a map.
Other trade companies in GU34
- Selborne Oak LtdBuilders
- Road & Acre LtdMotor traders
- S Charlton & Sons LimitedFinishing trades
- Buoyansea LtdMachinery repair and installation
- Ajs Design & Build LimitedJoiners and carpenters
- Inca Road Sales LimitedMechanics and garages
- Alton Valeting LtdCleaning companies
- Ab Maintain LimitedMachinery repair and installation
Shared registered office
50 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if WM Building 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 12648232
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 June 2020 (6 years ago)
- Registered office
- Market House, 21 Lenten Street, Alton, GU34 1HG
- Nature of business
- Construction of domestic buildings (SIC 41202)
Plumbing, heat and air-conditioning installation (SIC 43220) - Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 4 June 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 Alton
Other active building contractors registered in Alton.
- Woods Bros Ltd2013
- XL Properties Limited1995
- Adapt Property Solutions Ltd2020
- Broadview Homes Limited2012
- Chamberlain Contracts Limited2015
- Character Construction (London) Ltd2019
- DBD Building Limited2015
- Eclipse Building Contracts Limited2005
All building contractors in Alton · All trades in Alton · Builders across the UK
Frequently asked questions
When are WM Building Ltd's accounts due?
WM Building Ltd's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is WM Building Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is WM Building Ltd still trading?
WM Building 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 WM Building Ltd do?
WM Building Ltd is registered under Construction of domestic buildings (SIC 41202); Plumbing, heat and air-conditioning installation (SIC 43220).
How old is WM Building Ltd?
WM Building Ltd was incorporated on 5 June 2020, 6 years ago.
What is the penalty if WM Building 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 WM Building 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.