- Companies
- Property developers
- Bybrook Developments (Southern) Limited
Bybrook Developments (Southern) Limited
- Company number
- 10366604
- Incorporated
- 8 Sep 201610 years trading
- Registered office
- Office 24 Bowman House Business Centre, Bowman Court, Whitehill Lane, Royal Wootton Bassett, Wiltshire, SN4 7DB
- Nature of business
- Development of building projects
Bybrook Developments (Southern) Limited is a 10-year-old private limited company registered in Royal Wootton Bassett, company number 10366604, one of the UK's property development companies. Companies House shows its accounts as overdue: they were due on 30 June 2026.
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 £32K (+44.9%) on the year before, to £104K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £795K against £899K owed within a year: 0.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 8 years, 2017 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2024 | £104K | £14K | £795K | £899K | 1 |
| 30 Sep 2023 | £72K | £80K | £543K | £355K | 1 |
| 30 Sep 2022 | £86K | £62K | £291K | £213K | 1 |
| 30 Sep 2021 | £58K | £250K | £167K | 1 | |
| 30 Sep 2020 | £4,907 | £108K | £69K | 4 | |
| 30 Sep 2019 | £18K | £79K | £88K | 4 | |
| 30 Sep 2018 | £1,521 | £94K | £96K | ||
| 30 Sep 2017 | £19K | £48K | £28K |
Where Bybrook Developments (Southern) Limited is registered
The registered office is in Royal Wootton Bassett (SN4), in the Wiltshire local authority area, South West. Show SN4 7DB on a map.
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What happens if Bybrook Developments (Southern) Limited files late
If the accounts reach Companies House today, the late filing penalty is £750 (£1,500 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2026 to 31 Jul 2026 | £150 |
| 1 to 3 months late | 1 Aug 2026 to 30 Sep 2026 | £375 |
| 3 to 6 months late | 1 Oct 2026 to 31 Dec 2026 | £750 |
| More than 6 months late | From 1 Jan 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2026 | £200 |
| 3 months late | 30 Dec 2026 | another £200 |
| 6 months late | 30 Mar 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 2027 | 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
- 10366604
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 September 2016 (10 years ago)
- Registered office
- Office 24 Bowman House Business Centre, Bowman Court, Whitehill Lane, Royal Wootton Bassett, Wiltshire, SN4 7DB
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2024
- Last confirmation statement
- 7 June 2026
- Charges (mortgages)
- 2 outstanding of 2 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 Bybrook Developments (Southern) Limited's accounts due?
Bybrook Developments (Southern) Limited's accounts were due at Companies House on 30 June 2026 and the register shows them as overdue.
When is Bybrook Developments (Southern) Limited's CT600 due?
The CT600 for the period to 30 September 2025 is due at HMRC by 30 September 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2026.
Is Bybrook Developments (Southern) Limited still trading?
Bybrook Developments (Southern) Limited is listed as active on the Companies House register (checked 12 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 Bybrook Developments (Southern) Limited do?
Bybrook Developments (Southern) Limited is registered under Development of building projects (SIC 41100).
How old is Bybrook Developments (Southern) Limited?
Bybrook Developments (Southern) Limited was incorporated on 8 September 2016, 10 years ago.
What is the penalty if Bybrook Developments (Southern) 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 Bybrook Developments (Southern) Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.