Filing status
- Accounts due
- 30 September 2027
- Last accounts
- 31 December 2025
- Conf. stmt due
- 26 May 2027
- Last conf. stmt
- 12 May 2026
Adv 001 Limited
- Incorporated
- 14 May 2019 (7 years)
- Industry
- Production of electricity (35110)
- Directors
- Stephen Mason
- Owned by
- Accounts type
- Audit exemption subsidiary
- Region
- East Midlands
- Address
- Strelley Hall Main StreetStrelleyNottinghamNG8 6PE
Charges
- Total
- 4
- Outstanding
- 2
- Part satisfied
- 0
- Satisfied
- 2
Officers 5 active
Officer details are public data from the Companies House register.
Director · Appointed 6 May 2025
British
Born November 1959
Mason, Stephen
Director · Appointed 6 May 2025
British
Born September 1964 (62)
Director · Appointed 6 May 2025
British
Born June 1969 (57)
Director · Appointed 4 October 2022
South African
Born May 1985 (41)
Director · Appointed 4 October 2022
Also at Sloane Developments Limited · more companies
Irish
Born December 1963 (62)
Officer history (5 former)
3 June 2025
Resigned O'Keeffe, Noel as Secretary
6 May 2025
Appointed Mason, Stephen as Director
6 May 2025
6 May 2025
4 October 2022
4 October 2022
Appointed O'Keeffe, Noel as Secretary
4 October 2022
4 October 2022
4 October 2022
13 January 2022
6 September 2021
10 June 2021
22 August 2019
22 August 2019
14 May 2019
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Corporate entity · Notified 6 May 2025
Owns 75–100% of shares
Holds 75–100% of voting rights
Right to appoint and remove directors
Private Company Limited By Shares
Reg. no. 10066723
Former controllers (3)
3 October 2025
Ceased Sloane Developments Limited — Owns 75–100% of shares
4 October 2022
Ceased Dke Flexible Energy Limited — Owns 75–100% of shares
30 September 2021
Ceased Arlington Energy (Development) — Has significant influence or control
Group structure 26 companies
Ownership group derived from the Companies House PSC register
Hartree Land Limited Owns 75–100% of shares
Hartree Partners Power Holdings 2 (UK) Limited Owns 75–100% of shares
Hele Manor Limited Owns 75–100% of shares
Magnus Assets One Limited Owns 75–100% of shares
Bartley Power Limited Owns 75–100% of shares
Hamble Power Limited Owns 75–100% of shares
Keekle Power Limited Owns 75–100% of shares
Lavant Power Limited Owns 75–100% of shares
Rossington Power Limited Owns 75–100% of shares
Hartree Peaking (Holdings) Limited Owns 75–100% of shares
Haverton Hill Power Limited Owns 75–100% of shares
Kingsmoor Power Limited Owns 75–100% of shares
KWB Power Limited Owns 75–100% of shares
Hartree Peaking 2 (Holdings) Limited Owns 75–100% of shares
Excalibur Power Limited Owns 75–100% of shares
Peterlee Power Limited Owns 75–100% of shares
Sunderland Power Limited Owns 75–100% of shares
Hartree Solutions (UK) Limited Owns 75–100% of shares
Hartree Solutions Assets Limited Owns 75–100% of shares
WGC Energy Centre Limited Owns 75–100% of shares
Powertree (Holdings) Limited Owns 50–75% of shares
Adv 001 Limited This company Owns 75–100% of shares
Powertree (Foxwood Road) Limited Owns 75–100% of shares
Powertree (Sidings Road) Limited Owns 75–100% of shares
Powertree (Taylor Lane) Limited Owns 75–100% of shares
Financials
Figures from 2021 accounts. Newer accounts, made up to 31 December 2025, are filed but not read yet. See them on Companies House
Trend
Shareholder Funds
Balance sheet detail
| 2021 | 2020 | |
|---|---|---|
| Debtors | £2,055 | £100 |
| Creditors (< 1 year) | £12,505 | £10,275 |
| Net Current Assets | (£10,450) | (£10,175) |
| Shareholder Funds | (£10,450) | (£10,175) |
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 25 August 2026 | Other filing | — | ||
| 25 August 2026 | Other filing | |||
| 25 August 2026 | Other filing |
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