- Companies
- Property developers
- Boston
- Firth Brother Developments Limited
Firth Brother Developments Limited
- Company number
- 10303992
- Incorporated
- 29 Jul 201610 years trading
- Registered office
- Malc Firth Landscapes Limited Rainwalls Lane, Sutterton, Boston, Lincolnshire, PE20 2HY
- Nature of business
- Development of building projects
Firth Brother Developments Limited is a 10-year-old private limited company registered in Boston, company number 10303992, one of 37 property development companies in Boston. 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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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 £58K (+19.2%) on the year before, to £359K.
- Net assets rose in 6 of 8 year-on-year comparisons on record.
- Current assets of £1.1M against £1.5M owed within a year: 0.7 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 | £359K | £210K | £1.1M | £1.5M | 0 |
| 31 Mar 2024 | £301K | £41K | £521K | £953K | 0 |
| 31 Mar 2023 | £270K | £234K | £513K | £976K | 0 |
| 31 Mar 2022 | £223K | £605K | £1M | 0 | |
| 31 Mar 2021 | £189K | £244K | £482K | 2 | |
| 31 Mar 2020 | £125K | £233K | £514K | 0 | |
| 31 Mar 2019 | -£7,031 | £358K | £365K | ||
| 31 Mar 2018 | -£709 | £53K | £54K | ||
| 31 Mar 2017 | -£450 | £1,205 | £1,655 |
Where Firth Brother Developments Limited is registered
The registered office is in Boston (PE20), in the Boston local authority area, East Midlands. Show PE20 2HY on a map.
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What happens if Firth Brother Developments 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
- 10303992
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 July 2016 (10 years ago)
- Registered office
- Malc Firth Landscapes Limited Rainwalls Lane, Sutterton, Boston, Lincolnshire, PE20 2HY
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 12 June 2026
- Charges (mortgages)
- 3 outstanding of 11 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 in Boston
Other active property development companies registered in Boston.
- FLN Juj Ltd2025
- Gold Barn Properties Limited2015
- Guy and Jo Ltd2018
- HJL Builders Limited2024
- Issico Ltd2013
- Kesteven Homes Limited2026
- L & F Developments Limited2007
- LCR Construction Limited2012
All property development companies in Boston · All trades in Boston · Property developers across the UK
Frequently asked questions
When are Firth Brother Developments Limited's accounts due?
Firth Brother Developments 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 Firth Brother Developments 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 Firth Brother Developments Limited still trading?
Firth Brother Developments 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 Firth Brother Developments Limited do?
Firth Brother Developments Limited is registered under Development of building projects (SIC 41100).
How old is Firth Brother Developments Limited?
Firth Brother Developments Limited was incorporated on 29 July 2016, 10 years ago.
What is the penalty if Firth Brother Developments 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 Firth Brother Developments 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.