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  4. Advanced Power Developments Limited

Advanced Power Developments Limited

ActiveTotal exemption (full) accountsElectriciansLondon
Company number
02022231
Incorporated
22 May 198640 years trading
Registered office
20 Queen Elizabeth Street, Goatyard, London, SE1 2RJ
Nature of business
Electrical installation
Accounts due in
170 days
31 Mar 2027
Net assets
£268K▼
-24.0% on the year before
Cash at bank
£928▼
At 30 Jun 2025
Employees
9
Average during the year
From the Companies House register, 1 Oct 2026

Advanced Power Developments Limited is a 40-year-old private limited company registered in London, company number 02022231, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
31 Mar 2027
in 170 days
For the period to 30 Jun 2026
CT600 due
30 Jun 2027
in 261 days
Period 1 Jul 2025 to 30 Jun 2026
Corporation tax payment
1 Apr 2027
in 171 days
9 months and 1 day after the period end
Confirmation statement
5 Sep 2027
in 328 days
Last made up to 22 Aug 2026

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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 £85K (-24%) on the year before, to £268K.
  • Net assets rose in 6 of 9 year-on-year comparisons on record.
  • Current assets of £1M against £781K owed within a year: 1.3 times cover.
  • 9 employees on average during the year.
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£200K30 June 2016: net assets £222K£222K201630 June 2017: net assets £361K£361K201730 June 2018: net assets £238K£238K201830 June 2019: net assets £318K£318K201930 June 2020: net assets £259K£259K202030 June 2021: net assets £294K£294K202130 June 2022: net assets £335K£335K202230 June 2023: net assets £349K£349K202330 June 2024: net assets £353K£353K202430 June 2025: net assets £268K£268K2025
Net assets at each year end, 2016 to 2025£0£200K30 June 2016: net assets £222K£222K'1630 June 2017: net assets £361K£361K'1730 June 2018: net assets £238K£238K'1830 June 2019: net assets £318K£318K'1930 June 2020: net assets £259K£259K'2030 June 2021: net assets £294K£294K'2130 June 2022: net assets £335K£335K'2230 June 2023: net assets £349K£349K'2330 June 2024: net assets £353K£353K'2430 June 2025: net assets £268K£268K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
30 Jun 2025£268K£928£1M£781K9
30 Jun 2024£353K£86K£596K£244K9
30 Jun 2023£349K£45K£623K£276K9
30 Jun 2022£335K£60K£818K£430K9
30 Jun 2021£294K£255K£1.1M£673K9
30 Jun 2020£259K£293K£783K£352K9
30 Jun 2019£318K£249K£930K£611K
30 Jun 2018£238K£273K£580K£343K
30 Jun 2017£361K£310K£853K£494K
30 Jun 2016£222K£290K£663K£446K

Where Advanced Power Developments Limited is registered

Advanced Power Developments Limited's registered office on a map of the UK

The registered office is in London (SE1), in the Lambeth local authority area, England. Show SE1 2RJ on a map.

Other trade companies in SE1

What happens if Advanced Power Developments 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 March 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Apr 2027 to 30 Apr 2027£150
1 to 3 months late1 May 2027 to 30 Jun 2027£375
3 to 6 months late1 Jul 2027 to 30 Sep 2027£750
More than 6 months lateFrom 1 Oct 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Jul 2027£200
3 months late30 Sep 2027another £200
6 months late30 Dec 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late30 Jun 2028another 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
02022231
Status
Active
Company type
Private limited company
Incorporated
22 May 1986 (40 years ago)
Registered office
20 Queen Elizabeth Street, Goatyard, London, SE1 2RJ
Nature of business
Electrical installation (SIC 43210)
Year end
30 June (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
30 June 2025
Last confirmation statement
22 August 2026
Charges (mortgages)
1 outstanding of 1 registered

Filing notes for electrical contractors

Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.

Similar companies in London

Other active electrical contractors registered in London.

All electrical contractors in London · All trades in London · Electricians across the UK

Frequently asked questions

When are Advanced Power Developments Limited's accounts due?

Advanced Power Developments Limited's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.

When is Advanced Power Developments Limited's CT600 due?

The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.

Is Advanced Power Developments Limited still trading?

Advanced Power Developments 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 Advanced Power Developments Limited do?

Advanced Power Developments Limited is registered under Electrical installation (SIC 43210).

How old is Advanced Power Developments Limited?

Advanced Power Developments Limited was incorporated on 22 May 1986, 40 years ago.

What is the penalty if Advanced Power Developments 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 Advanced Power Developments Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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