- Companies
- Property developers
- Harrow
- The Portland Square Limited
The Portland Square Limited
- Company number
- 09785749
- Incorporated
- 21 Sep 201511 years trading
- Registered office
- Ground Floor 100, College Road, Harrow, HA1 1BQ
- Nature of business
- Development of building projects; Other letting and operating of own or leased real estate
The Portland Square Limited is a 11-year-old private limited company registered in Harrow, company number 09785749, one of 679 property development companies in Harrow. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £3,968 (+6.4%) on the year before, to -£58K.
- Net assets rose in 1 of 9 year-on-year comparisons on record.
- Current assets of £28M against £29M owed within a year: 1.0 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 Aug 2025 | -£58K | £414K | £28M | £29M | 0 |
| 31 Dec 2024 | -£62K | £48K | £21M | 0 | |
| 30 Sep 2023 | -£37K | £9.9M | £9.9M | 1 | |
| 30 Sep 2022 | -£25K | £620K | £4.7M | 1 | |
| 30 Sep 2021 | -£25K | £54K | £3.5M | 1 | |
| 30 Sep 2020 | -£21K | £11K | £2.2M | 1 | |
| 30 Sep 2019 | -£18K | £7,439 | £2.2M | 1 | |
| 30 Sep 2018 | -£17K | £5,297 | £2.1M | 1 | |
| 30 Sep 2017 | -£15K | ||||
| 30 Sep 2016 | -£8,489 | £99 | £1.9M |
Where The Portland Square Limited is registered
The registered office is in Harrow (HA1), in the Harrow local authority area, London. Show HA1 1BQ on a map.
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What happens if The Portland 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 09785749
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 September 2015 (11 years ago)
- Registered office
- Ground Floor 100, College Road, Harrow, HA1 1BQ
- Nature of business
- Development of building projects (SIC 41100)
Other letting and operating of own or leased real estate (SIC 68209) - Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 20 September 2026
- Charges (mortgages)
- 3 outstanding of 3 registered
- Previous names
- Square Developments Bristol Limited (until 8 Apr 2017)
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.
- The Space Method Ltd2026
- Thomas Rattenbury Limited1989
- Tilfinch Limited1975
- Timelaw Limited1987
- Titan Property and Development Ltd2025
- Titancore Developments Ltd2025
- TJ Property Renovations Limited2018
- TMTH Limited2026
All property development companies in Harrow · All trades in Harrow · Property developers across the UK
Frequently asked questions
When are The Portland Square Limited's accounts due?
The Portland Square Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is The Portland Square Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is The Portland Square Limited still trading?
The Portland 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 The Portland Square Limited do?
The Portland Square Limited is registered under Development of building projects (SIC 41100); Other letting and operating of own or leased real estate (SIC 68209).
How old is The Portland Square Limited?
The Portland Square Limited was incorporated on 21 September 2015, 11 years ago.
What is the penalty if The Portland 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 The Portland 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.