- Companies
- Property developers
- Harrow
- Sinclair Ventures Limited
Sinclair Ventures Limited
- Company number
- 01851381
- Incorporated
- 28 Sep 198442 years trading
- Registered office
- 211 Station Road, Harrow, Middlesex, HA1 2TP
- Nature of business
- Development of building projects; Information technology consultancy activities
Sinclair Ventures Limited is a 42-year-old private limited company registered in Harrow, company number 01851381, one of 679 property development companies in Harrow. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £18K (+6%) on the year before, to £323K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £136K against £2.8M owed within a year: 0.0 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £323K | £103K | £136K | £2.8M | 3 |
| 31 Dec 2024 | £305K | £129K | £145K | £1.7M | 3 |
| 31 Dec 2023 | £283K | £291K | £291K | £1.1M | 3 |
| 31 Dec 2022 | £804K | £266K | £341K | £738K | 2 |
| 31 Dec 2021 | £803K | £196K | £319K | £701K | 2 |
| 31 Dec 2020 | £797K | £338K | £681K | 2 | |
| 31 Dec 2019 | £1.1M | £229K | £656K | 2 | |
| 31 Dec 2018 | £1M | £126K | £520K | ||
| 31 Dec 2017 | £924K | £208K | £618K | ||
| 31 Dec 2016 | £776K | £75K | £444K |
Where Sinclair Ventures Limited is registered
The registered office is in Harrow (HA1), in the Harrow local authority area, London. Show HA1 2TP on a map.
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- Mia Maria Services LtdCleaning companies
- 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
22 other companies use the same registered office as Sinclair Ventures Limited.
- Ab Developer LimitedInstallers
- Aims Realty UK LtdProperty developers
- Amazing Surfaces LtdInstallers
- Ard Paving Stones LimitedFloor and wall tilers
- Avenue Developments UK LtdProperty developers
- Bendave Construction LtdInstallers
- G Singh and Co UK LtdBuilders
- Guard International LimitedFloor and wall tilers
- Habitat Design & Build LtdProperty developers
- Hadley Gardens LimitedProperty developers
- Happy Home Contractors LtdBuilders
- JN Constructions LtdInstallers
- JR Construction1 LimitedProperty developers
- Project MGM LimitedSpecialist contractors
- R2V Design & Build LtdProperty developers
- Stone Worktop Surfaces LtdInstallers
- Stones Design and Build LtdProperty developers
- Unic Assets LtdProperty developers
- Valencia Development LimitedProperty developers
- VP & PP Property LtdProperty developers
- Z&S Projects LtdProperty developers
- Zameen Infrastructure LtdBuilders
What happens if Sinclair Ventures 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 01851381
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 September 1984 (42 years ago)
- Registered office
- 211 Station Road, Harrow, Middlesex, HA1 2TP
- Nature of business
- Development of building projects (SIC 41100)
Information technology consultancy activities (SIC 62020) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 17 March 2026
- Charges (mortgages)
- 1 outstanding of 7 registered
- Previous names
- Sun (Midlands) Limited (until 30 Sep 2010)
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.
- Sivika Associates Ltd2013
- Sky 26 Limited2007
- Skyspace Commercial Limited2021
- Skyspace Homes Limited2010
- Skyspace Properties Limited2013
- Slate Space Ltd2019
- Smart Eco Homes Ltd2023
- Snowden Developments Limited2016
All property development companies in Harrow · All trades in Harrow · Property developers across the UK
Frequently asked questions
When are Sinclair Ventures Limited's accounts due?
Sinclair Ventures Limited's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Sinclair Ventures Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Sinclair Ventures Limited still trading?
Sinclair Ventures 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 Sinclair Ventures Limited do?
Sinclair Ventures Limited is registered under Development of building projects (SIC 41100); Information technology consultancy activities (SIC 62020).
How old is Sinclair Ventures Limited?
Sinclair Ventures Limited was incorporated on 28 September 1984, 42 years ago.
What is the penalty if Sinclair Ventures 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 Sinclair Ventures 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.