- Companies
- Installers
- Doncaster
- 731 Energy Consultancy Ltd
731 Energy Consultancy Ltd
- Company number
- 15097482
- Incorporated
- 25 Aug 20233 years trading
- Registered office
- 4 Dudley Road, Doncaster, DN2 6EA
- Nature of business
- Other construction installation; Environmental consulting activities
731 Energy Consultancy Ltd is a 3-year-old private limited company registered in Doncaster, company number 15097482, one of 128 installation companies (insulation, lifts, shutters and similar) in Doncaster. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 up £4,164 (+59.8%) on the year before, to £11K.
- Current assets of £11K against £1,232 owed within a year: 8.7 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £11K | £11K | £1,232 | 0 | |
| 31 Aug 2024 | £6,960 | £11K | £4,283 | 0 |
Who runs and owns 731 Energy Consultancy Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| J*** B*** | Director | Aug 2023 |
Person with significant control
Where 731 Energy Consultancy Ltd is registered
The registered office is in Doncaster (DN2), in the Doncaster local authority area, Yorkshire and The Humber. Show DN2 6EA on a map.
Other trade companies in DN2
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- Arqstone Developments LtdProperty developers
- Zych Enterprise LtdBuilders
- Hardwick & Stone LimitedProperty developers
- Gorecka LtdMechanics and garages
- Stonecaster LtdMotor traders
- JRSH Autos LtdMotor traders
- Head New Build Cleaning LtdCleaning companies
What happens if 731 Energy Consultancy 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 15097482
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 August 2023 (3 years ago)
- Registered office
- 4 Dudley Road, Doncaster, DN2 6EA
- Nature of business
- Other construction installation (SIC 43290)
Environmental consulting activities (SIC 74901) - Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 10 September 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Doncaster
Other active installation companies (insulation, lifts, shutters and similar) registered in Doncaster.
- A & H Fencing Services Ltd2021
- Acorn Designer Driveways Limited2021
- Apex Rope Access Limited2024
- Apexcontracting Ltd2025
- Apollo Projects Ltd2025
- Artemis Builders Limited2026
- As Construction(Northern) Limited2025
- B Peters Joinery Limited2024
All installation companies (insulation, lifts, shutters and similar) in Doncaster · All trades in Doncaster · Installers across the UK
Frequently asked questions
When are 731 Energy Consultancy Ltd's accounts due?
731 Energy Consultancy Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is 731 Energy Consultancy Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is 731 Energy Consultancy Ltd still trading?
731 Energy Consultancy 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 731 Energy Consultancy Ltd do?
731 Energy Consultancy Ltd is registered under Other construction installation (SIC 43290); Environmental consulting activities (SIC 74901).
How old is 731 Energy Consultancy Ltd?
731 Energy Consultancy Ltd was incorporated on 25 August 2023, 3 years ago.
Who runs 731 Energy Consultancy Ltd?
731 Energy Consultancy Ltd has 1 active director, the longest-serving appointed in Aug 2023. Their names and service addresses are on the Companies House register.
Who owns 731 Energy Consultancy Ltd?
One person or company has significant control of 731 Energy Consultancy Ltd: an individual (owns 75% or more of the shares).
What is the penalty if 731 Energy Consultancy 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 731 Energy Consultancy 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.