- Company number
- 12159612
- Incorporated
- 16 Aug 20197 years trading
- Registered office
- C/O Shears & Partners Limited 7 Craven Park Court, Craven Park Road, London, N15 6AA
- Nature of business
- Construction of domestic buildings; Electrical installation; Plumbing, heat and air-conditioning installation
Sanjonat Limited is a 7-year-old private limited company registered in London, company number 12159612, one of 12,075 building contractors in London. Companies House shows its accounts as overdue: they were due on 31 August 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 unchanged on the year before, at £45K.
- Current assets of £7,225 against £66K owed within a year: 0.1 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 4 years, 2020 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2024 | £45K | £7,225 | £66K | 2 | |
| 31 Aug 2023 | £45K | £7,225 | £66K | 2 | |
| 31 Aug 2021 | -£4,028 | £1,874 | £38K | £42K | 2 |
| 31 Aug 2020 | £100 | £100 |
Where Sanjonat Limited is registered
The registered office is in London (N15), in the Haringey local authority area, London. Show N15 6AA on a map.
Other trade companies in N15
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- Rozelle Cleaning LtdCleaning companies
- Hunt4Heating LtdPlumbers and heating engineers
- Clean Stitch LtdRepair services
- Watt Rite LtdElectricians
- Did-Fit LimitedPlasterers
- Arvin Cleaning Ltd LtdCleaning companies
- North London Building Control LimitedSpecialist contractors
Also registered at this address
1 other company uses the same registered office as Sanjonat Limited.
- Marriott Project Management LimitedProperty developers
What happens if Sanjonat Limited files late
If the accounts reach Companies House today, the late filing penalty is £375 (£750 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2026 to 30 Sep 2026 | £150 |
| 1 to 3 months late | 1 Oct 2026 to 30 Nov 2026 | £375 |
| 3 to 6 months late | 1 Dec 2026 to 28 Feb 2027 | £750 |
| More than 6 months late | From 1 Mar 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2026 | £200 |
| 3 months late | 28 Feb 2027 | another £200 |
| 6 months late | 30 May 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 2027 | 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
- 12159612
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 August 2019 (7 years ago)
- Registered office
- C/O Shears & Partners Limited 7 Craven Park Court, Craven Park Road, London, N15 6AA
- Nature of business
- Construction of domestic buildings (SIC 41202)
Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220) - Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2024
- Last confirmation statement
- 15 August 2025
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 London
Other active building contractors registered in London.
- Sanmar Construction Ltd2014
- Sanreal Ltd2026
- Santo Developments Ltd2026
- Sapm Ltd2025
- Sara-Ady Construction Limited2024
- Sara777 Ltd2020
- Saraeli Ltd2018
- Sarah Wain Property Developer Ltd2026
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Sanjonat Limited's accounts due?
Sanjonat Limited's accounts were due at Companies House on 31 August 2026 and the register shows them as overdue.
When is Sanjonat Limited'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 August 2025, due by 31 August 2026, and one for the period to 30 November 2025, due by 30 November 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Sanjonat Limited still trading?
Sanjonat Limited is listed as active on the Companies House register (checked 13 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 Sanjonat Limited do?
Sanjonat Limited is registered under Construction of domestic buildings (SIC 41202); Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Sanjonat Limited?
Sanjonat Limited was incorporated on 16 August 2019, 7 years ago.
What is the penalty if Sanjonat 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 Sanjonat Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.