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- Harrow Square Limited
Company profile · Property developers
Harrow Square Limited
Harrow Square Limited is a 7-year-old private limited company registered in London, company number 11680324, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 March 2025, as filed at Companies House.
Harrow Square Limited over the years
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 £36K (+38.6%) on the year before, to £129K.
- Net assets rose in 5 of 5 year-on-year comparisons on record.
- Current assets of £212K against £4,744 owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 6 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £129K | £212K | £4,744 | 0 | |
| 31 Mar 2024 | £93K | £191K | £44K | 0 | |
| 30 Nov 2022 | £38K | £83K | £19K | 0 | |
| 30 Nov 2021 | £35K | £38K | £46K | £29K | 0 |
| 30 Nov 2020 | £5,544 | £23K | £17K | 1 | |
| 30 Nov 2019 | £2,610 | £19K | £16K | 0 |
Where Harrow Square Limited is registered
The registered office is in London (W7), in the Ealing local authority area, London. Show W7 2QE on a map.
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Also registered at this address
12 other companies use the same registered office as Harrow Square Limited.
- Avs Heating & Plumbing LtdPlumbers and heating engineers
- Bright London LtdMachinery repair and installation
- Capital Commercial Maintenance LtdMechanics and garages
- DLB Homes LimitedBuilders
- G7 Britannia LtdMotor traders
- Heelas Heating LtdPlumbers and heating engineers
- Jasonlee Electrical Ltd.Electricians
- Lapshii LtdBuilders
- LKS Roofing LtdBuilders
- Milton Brook LimitedProperty developers
- Riordan Bros LtdElectricians
- UPVC Repair Solutions LtdInstallers
What happens if Harrow Square 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 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
- 11680324
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 November 2018 (7 years ago)
- Registered office
- C/O NFS,211 Boundary House, Boston Road, London, W7 2QE
- Nature of business
- Development of building projects (SIC 41100)
Buying and selling of own real estate (SIC 68100)
General cleaning of buildings (SIC 81210) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 31 December 2025
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 London
Other active property development companies registered in London.
- Harry F. Rochat Limited1976
- Harry Moore Commercials Trading Limited2022
- Hart & Co Construction Limited2012
- Hart Investments (Bow) Ltd2011
- Hartan Investments Limited1987
- Hartburn Group Ltd2026
- Hartgroup Investments Ltd2011
- Hartley Homes London Limited2020
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Harrow Square Limited's accounts due?
Harrow Square Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Harrow Square Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Harrow Square Limited still trading?
Harrow Square 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 Harrow Square Limited do?
Harrow Square Limited is registered under Development of building projects (SIC 41100); Buying and selling of own real estate (SIC 68100); General cleaning of buildings (SIC 81210).
How old is Harrow Square Limited?
Harrow Square Limited was incorporated on 15 November 2018, 7 years ago.
What is the penalty if Harrow Square 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 Harrow Square 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.