- Companies
- Builders
- Leytonstone
- Elmcon Ltd
Elmcon Ltd
- Company number
- 12021351
- Incorporated
- 29 May 20197 years trading
- Registered office
- 20 Acacia Road, Leytonstone, London, E11 3QG
- Nature of business
- Construction of domestic buildings; Electrical installation; Plumbing, heat and air-conditioning installation
Elmcon Ltd is a 7-year-old private limited company registered in Leytonstone, company number 12021351, one of 12 building contractors in Leytonstone. 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.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Elmcon LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £2,401 (-54.2%) on the year before, to £2,029.
- Net assets rose in 1 of 5 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £2,029 | £2,029 | 0 | ||
| 31 May 2024 | £4,430 | £4,430 | £0 | 0 | |
| 31 May 2023 | £10K | £15K | £5,045 | 1 | |
| 31 May 2022 | £11K | £13K | £1,761 | 1 | |
| 31 May 2021 | £988 | £5,461 | £4,473 | 0 | |
| 31 May 2020 | £6,585 | £8,683 | £2,098 | 1 |
Where Elmcon Ltd is registered
The registered office is in Leytonstone (E11), in the Waltham Forest local authority area, London. Show E11 3QG on a map.
Other trade companies in E11
- Yvt 79 LtdBuilders
- Ayadi Services LimitedPlumbers and heating engineers
- Bensliman Services LimitedPlumbers and heating engineers
- Myhomerenew Ltd LtdPlasterers
- Velaron LtdProperty developers
- Hakk Technical Services LtdInstallers
- Meycarwash LtdCleaning companies
- Rose Ave LtdProperty developers
What happens if Elmcon 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
- 12021351
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 May 2019 (7 years ago)
- Registered office
- 20 Acacia Road, Leytonstone, London, E11 3QG
- Nature of business
- Construction of domestic buildings (SIC 41202)
Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 27 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 Leytonstone
Other active building contractors registered in Leytonstone.
- Fantastic Grounding Ltd2020
- Lakeside Property Investment Limited1997
- MGH Construct Ltd2026
- Paramount Abseiling Ltd2021
- SK77 Construction Ltd2023
- SSS Developments Ltd2023
- T&C Pearson Construction Limited2020
- Tony Build Ltd2018
All building contractors in Leytonstone · All trades in Leytonstone · Builders across the UK
Frequently asked questions
When are Elmcon Ltd's accounts due?
Elmcon 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 Elmcon 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 Elmcon Ltd still trading?
Elmcon 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 Elmcon Ltd do?
Elmcon Ltd is registered under Construction of domestic buildings (SIC 41202); Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Elmcon Ltd?
Elmcon Ltd was incorporated on 29 May 2019, 7 years ago.
What is the penalty if Elmcon 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 Elmcon 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.