- Companies
- Civil engineering
- St Albans
- Elan Hydro Ltd
Elan Hydro Ltd
- Company number
- 10033700
- Incorporated
- 1 Mar 201610 years trading
- Registered office
- Wellington House 273-275 High Street, London Colney, St Albans, Hertfordshire, AL2 1HA
- Nature of business
- Construction of other civil engineering projects n.e.c.
Elan Hydro Ltd is a 10-year-old private limited company registered in St Albans, company number 10033700, one of 11 civil engineering contractors in St Albans. Its next accounts are due at Companies House on 31 December 2026, and its first CT600 is due at HMRC on 31 December 2026.
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 £37K (-12.9%) on the year before, to -£319K.
- Net assets rose in 0 of 8 year-on-year comparisons on record.
- Current assets of £6,435 against £13K owed within a year: 0.5 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 9 years, 2017 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2024 | -£319K | £6,335 | £6,435 | £13K | 0 |
| 31 Dec 2023 | -£282K | £6,335 | £6,435 | £12K | 0 |
| 31 Dec 2022 | -£246K | £8,163 | £8,263 | £13K | 0 |
| 31 Dec 2021 | -£209K | £13K | £13K | £2,626 | 0 |
| 31 Dec 2020 | -£164K | £4,859 | £8,118 | £13K | 0 |
| 31 Dec 2019 | -£102K | £2,885 | £55K | £63K | 0 |
| 31 Mar 2019 | -£86K | £1,333 | £14K | £101K | |
| 31 Mar 2018 | -£44K | £2,290 | £16K | £60K | |
| 31 Mar 2017 | -£9,701 | £3,478 | £17K | £27K |
Where Elan Hydro Ltd is registered
The registered office is in St Albans (AL2), in the St Albans local authority area, East of England. Show AL2 1HA on a map.
Other trade companies in AL2
- Keris Ventures Limited LimitedFinishing trades
- Kelly Brickwork LimitedBuilders
- Aurora Electrical LtdElectricians
- Pillars Motors LimitedMotor traders
- Pride & Joy LtdFinishing trades
- Rowantree Developments Group LimitedProperty developers
- Herts Groundworks and Civils LtdGroundworks and demolition
- Meristem Developments LtdProperty developers
Shared registered office
41 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 Elan Hydro 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 10033700
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 March 2016 (10 years ago)
- Registered office
- Wellington House 273-275 High Street, London Colney, St Albans, Hertfordshire, AL2 1HA
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 8 August 2026
- Previous names
- Elmserve Ltd (until 20 Oct 2016)
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in St Albans
Other active civil engineering contractors registered in St Albans.
- Halsey (Builders) Limited1963
- Mersey Hydro Ltd2017
- Renfin Hydro 2 Ltd2017
- Afon Cree Hydro Ltd2016
- Anders1980 Ltd2008
- Ayad Services Limited2018
- C J Pryor (Harlow) Limited2016
- Dower Building Limited2011
All civil engineering contractors in St Albans · All trades in St Albans · Civil engineering across the UK
Frequently asked questions
When are Elan Hydro Ltd's accounts due?
Elan Hydro Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Elan Hydro Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 December 2025, due by 31 December 2026, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Elan Hydro Ltd still trading?
Elan Hydro 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 Elan Hydro Ltd do?
Elan Hydro Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Elan Hydro Ltd?
Elan Hydro Ltd was incorporated on 1 March 2016, 10 years ago.
What is the penalty if Elan Hydro 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 Elan Hydro 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.