- Companies
- Property developers
- Harrow
- Sinckot Development (Heston) Limited
Sinckot Development (Heston) Limited
- Company number
- 10709577
- Incorporated
- 5 Apr 20179 years trading
- Registered office
- Sinckot House, 211 Station Road, Harrow, HA1 2TP
- Nature of business
- Development of building projects
Sinckot Development (Heston) Limited is a 9-year-old private limited company registered in Harrow, company number 10709577, one of 679 property development companies in Harrow. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 down £235K (-739.8%) on the year before, to -£267K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £77K against £317K owed within a year: 0.2 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | -£267K | £1,665 | £77K | £317K | 0 |
| 30 Apr 2024 | -£32K | £1,603 | £362K | £361K | 1 |
| 30 Apr 2023 | -£38K | £1,829 | £412K | £412K | 1 |
| 30 Apr 2022 | £9,323 | £6,712 | £1.1M | £1M | 1 |
| 30 Apr 2021 | £27K | £9,353 | £1M | £27K | 0 |
| 30 Apr 2020 | £17K | £6,901 | £1M | £154K | 0 |
| 30 Apr 2019 | £574 | £617 | £3.1M | £22K | |
| 30 Apr 2018 | £243 | £2,508 | £2.1M | £41K |
Where Sinckot Development (Heston) Limited is registered
The registered office is in Harrow (HA1), in the Harrow local authority area, London. Show HA1 2TP on a map.
Other trade companies in HA1
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- Ac Operations LtdScaffolders
- Verde Masters LtdLandscapers and gardeners
- Omega Works Group LtdLandscapers and gardeners
- Call 'Em LimitedPlumbers and heating engineers
- Swan Roofing Services LimitedRoofers
- DRV Property Solutions LtdPainters and decorators
Also registered at this address
5 other companies use the same registered office as Sinckot Development (Heston) Limited.
- Aims Europe LimitedProperty developers
- Global Granite & Trading Company LimitedFloor and wall tilers
- Sinckot Developments LtdProperty developers
- Stone Home Refurbishment LimitedFloor and wall tilers
- Syon Hotels LimitedProperty developers
What happens if Sinckot Development (Heston) 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 10709577
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 April 2017 (9 years ago)
- Registered office
- Sinckot House, 211 Station Road, Harrow, HA1 2TP
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 18 February 2026
- Charges (mortgages)
- 3 outstanding of 5 registered
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Harrow
Other active property development companies registered in Harrow.
- Sinckot Developments Ltd2014
- Sinclair Ventures Limited1984
- Sivika Associates Ltd2013
- Sky 26 Limited2007
- Skyspace Commercial Limited2021
- Skyspace Homes Limited2010
- Skyspace Properties Limited2013
- Slate Space Ltd2019
All property development companies in Harrow · All trades in Harrow · Property developers across the UK
Frequently asked questions
When are Sinckot Development (Heston) Limited's accounts due?
Sinckot Development (Heston) Limited's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Sinckot Development (Heston) Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Sinckot Development (Heston) Limited still trading?
Sinckot Development (Heston) 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 Sinckot Development (Heston) Limited do?
Sinckot Development (Heston) Limited is registered under Development of building projects (SIC 41100).
How old is Sinckot Development (Heston) Limited?
Sinckot Development (Heston) Limited was incorporated on 5 April 2017, 9 years ago.
What is the penalty if Sinckot Development (Heston) 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 Sinckot Development (Heston) Limited 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.