- Company number
- 10603091
- Incorporated
- 6 Feb 20179 years trading
- Registered office
- Milroy House, Sayers Lane, Tenterden, Kent, TN30 6BW
- Nature of business
- Construction of domestic buildings; Electrical installation; Scaffold erection; Renting and leasing of construction and civil engineering machinery and equipment
Sonbro Ltd is a 9-year-old private limited company registered in Tenterden, company number 10603091, one of 25 building contractors in Tenterden. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £4,923 (+87.1%) on the year before, to £11K.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £34K against £44K owed within a year: 0.8 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2018 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2024 | £11K | £34K | £44K | 1 | |
| 31 May 2023 | £5,652 | £21K | £23K | 1 | |
| 31 May 2021 | £16K | £13K | £13K | 1 | |
| 31 May 2020 | £5,154 | £19K | £20K | 1 | |
| 31 May 2019 | £8,862 | £17K | £11K | 1 | |
| 28 Feb 2018 | £16K | £32K | £17K |
Where Sonbro Ltd is registered
The registered office is in Tenterden (TN30), in the Ashford local authority area, South East. Show TN30 6BW on a map.
Other trade companies in TN30
- Alexander Hatfield LimitedMechanics and garages
- Verello Access Solutions LtdSpecialist contractors
- JRB Roofing & Building LtdBuilders
- Embery Property Group LtdBuilders
- Power Networking Solutions LtdMachinery repair and installation
- M Harrington Tree Surgery LtdLandscapers and gardeners
- Harrington Motors (Kent) LtdMechanics and garages
- RTJ New Homes LimitedBuilders
Also registered at this address
14 other companies use the same registered office as Sonbro Ltd.
- 7Oaks Landscapes LtdLandscapers and gardeners
- BNC Automotive LimitedMechanics and garages
- FXC LtdBuilders
- Giles Oliver (Small Works) LimitedFloor and wall tilers
- Giles Oliver Contracts LimitedProperty developers
- Giles Oliver LimitedInstallers
- Has London LimitedSpecialist contractors
- Hesling Plant LimitedCivil engineering
- Keyside Consultants LimitedSpecialist contractors
- NPB Fire Installations LimitedSpecialist contractors
- Project-Twenty LimitedProperty developers
- R & R Environmental Services LimitedBuilders
- Sundance Construction LimitedSpecialist contractors
- Whitecrest Painters and Decorators LimitedPainters and decorators
What happens if Sonbro Ltd 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 10603091
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 February 2017 (9 years ago)
- Registered office
- Milroy House, Sayers Lane, Tenterden, Kent, TN30 6BW
- Nature of business
- Construction of domestic buildings (SIC 41202)
Electrical installation (SIC 43210)
Scaffold erection (SIC 43991)
Renting and leasing of construction and civil engineering machinery and equipment (SIC 77320) - Year end
- 31 May (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 15 June 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Tenterden
Other active building contractors registered in Tenterden.
- Am Construction Kent Limited2023
- Calvin Watts Construction Ltd2018
- Churchview Estates Ltd2018
- Debatsford Developments Limited1990
- Earle Construction Solutions Limited2011
- Embery Property Group Ltd2026
- FSG Developments Ltd2014
- FXC Ltd2012
All building contractors in Tenterden · All trades in Tenterden · Builders across the UK
Frequently asked questions
When are Sonbro Ltd's accounts due?
Sonbro Ltd's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Sonbro Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Sonbro Ltd still trading?
Sonbro Ltd 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 Sonbro Ltd do?
Sonbro Ltd is registered under Construction of domestic buildings (SIC 41202); Electrical installation (SIC 43210); Scaffold erection (SIC 43991); Renting and leasing of construction and civil engineering machinery and equipment (SIC 77320).
How old is Sonbro Ltd?
Sonbro Ltd was incorporated on 6 February 2017, 9 years ago.
What is the penalty if Sonbro Ltd 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 Sonbro Ltd 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.