- Companies
- Property developers
- Thornhill Development Limited
Thornhill Development Limited
- Company number
- 04723049
- Incorporated
- 4 Apr 200323 years trading
- Registered office
- 122 Putney Bridge Road, London, SW15 2NQ
- Nature of business
- Development of building projects
Thornhill Development Limited is a 23-year-old private limited company, company number 04723049, one of the UK's property development companies. Its next accounts are due at Companies House on 27 December 2026, and the CT600 for the period to 27 March 2026 is due at HMRC on 27 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Thornhill Development LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £27K (+51.1%) on the year before, to £81K.
- Net assets rose in 6 of 8 year-on-year comparisons on record.
- Current assets of £901K against £824K owed within a year: 1.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £81K | £87K | £901K | £824K | 0 |
| 31 Mar 2024 | £53K | £93K | £974K | £925K | 0 |
| 31 Mar 2023 | £36K | £79K | £953K | £922K | 0 |
| 31 Mar 2022 | £27K | £71K | £941K | £920K | 0 |
| 31 Mar 2021 | £6,073 | £46K | £934K | £929K | 0 |
| 31 Mar 2020 | -£5,215 | £47K | £931K | £939K | 0 |
| 31 Mar 2019 | -£27K | £4,984 | £912K | £942K | |
| 31 Mar 2018 | £164K | £732 | £922K | £762K | |
| 31 Mar 2017 | £172K | £4,468 | £859K | £690K |
Where Thornhill Development Limited is registered
The registered office is in the SW15 postcode district, in the Wandsworth local authority area, London. Show SW15 2NQ on a map.
Other trade companies in SW15
- Kruzaken LtdInstallers
- White Horse Ipswich 2 LimitedProperty developers
- Cherry Premier Cleaning LtdCleaning companies
- Prestige Property Maintenance Services LtdFinishing trades
- Zakies Autocare LtdMechanics and garages
- Cenaj Construction LtdBuilders
- Corbett's Roofing LtdRoofers
- Dronevolut Solutions LimitedElectricians
What happens if Thornhill Development 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 27 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 28 Dec 2026 to 27 Jan 2027 | £150 |
| 1 to 3 months late | 28 Jan 2027 to 27 Mar 2027 | £375 |
| 3 to 6 months late | 28 Mar 2027 to 27 Jun 2027 | £750 |
| More than 6 months late | From 28 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 28 Mar 2027 | £200 |
| 3 months late | 27 Jun 2027 | another £200 |
| 6 months late | 27 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 27 Mar 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
- 04723049
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 April 2003 (23 years ago)
- Registered office
- 122 Putney Bridge Road, London, SW15 2NQ
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 27 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 4 April 2026
- Charges (mortgages)
- 0 outstanding of 4 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
Other active property development companies.
Frequently asked questions
When are Thornhill Development Limited's accounts due?
Thornhill Development Limited's next accounts are due at Companies House by 27 December 2026 (in 76 days), covering the period to 27 March 2026.
When is Thornhill Development Limited's CT600 due?
The CT600 for the period to 27 March 2026 is due at HMRC by 27 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 28 December 2026.
Is Thornhill Development Limited still trading?
Thornhill Development 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 Thornhill Development Limited do?
Thornhill Development Limited is registered under Development of building projects (SIC 41100).
How old is Thornhill Development Limited?
Thornhill Development Limited was incorporated on 4 April 2003, 23 years ago.
What is the penalty if Thornhill Development 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 Thornhill Development 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.