- Companies
- Specialist contractors
- Tonbridge
- John Knowles Builders Ltd
John Knowles Builders Ltd
- Company number
- 05492614
- Incorporated
- 27 Jun 200521 years trading
- Registered office
- 51 ST Mary's Road, Tonbridge, Kent, TN9 2LE
- Nature of business
- Other specialised construction activities n.e.c.
John Knowles Builders Ltd is a 21-year-old private limited company registered in Tonbridge, company number 05492614, one of 53 specialist construction companies in Tonbridge. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for John Knowles Builders LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 down £14K on the year before, to -£15K.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £42K against £82K owed within a year: 0.5 times cover.
- 2 employees on average during the year.
- 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 |
|---|---|---|---|---|---|
| 30 Jun 2025 | -£15K | £41K | £42K | £82K | 2 |
| 30 Jun 2024 | -£745 | £37K | £41K | £75K | 2 |
| 30 Jun 2023 | £13K | £106K | £110K | £141K | 2 |
| 30 Jun 2022 | -£15K | £37K | £49K | £124K | 2 |
| 30 Jun 2021 | -£51K | £56K | £59K | £133K | 2 |
| 30 Jun 2020 | -£48K | £19K | £19K | £113K | 2 |
| 30 Jun 2019 | -£27K | £5,072 | £15K | £103K | 2 |
| 30 Jun 2018 | -£3,692 | £23K | £31K | £79K | |
| 30 Jun 2017 | -£4,792 | £24K | £28K | £60K | 1 |
| 30 Jun 2016 | £1,786 | £22K | £23K | £24K |
Where John Knowles Builders Ltd is registered
The registered office is in Tonbridge (TN9), in the Tonbridge and Malling local authority area, South East. Show TN9 2LE on a map.
Other trade companies in TN9
- SV Foundry LimitedProperty developers
- L&J Contracting LtdProperty developers
- JCJ Services LimitedInstallers
- Sovereign Clean Spaces LtdCleaning companies
- London Roofing & Damp Proofing Group LtdRoofers
- Prime Truro Developments LtdProperty developers
- Faircrouch Garage LtdMechanics and garages
- NL Cleaning Services LimitedCleaning companies
Also registered at this address
13 other companies use the same registered office as John Knowles Builders Ltd.
- Abp Maintenance LtdElectricians
- Ags Scaffolding (S.E) LtdScaffolders
- Atrium Ventures LtdSpecialist contractors
- Easton Electrical Services LtdElectricians
- Energon Connections LtdCivil engineering
- Fabric London LimitedFinishing trades
- Gibsons Joiners and Builders LimitedFinishing trades
- GP Spray Solutions LtdPainters and decorators
- Granary Scaffolding LimitedScaffolders
- Langfax LimitedCivil engineering
- Limespace LtdFinishing trades
- LR-XS (UK) LtdMechanics and garages
- R.Stedman & Sons LimitedProperty developers
What happens if John Knowles Builders 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 05492614
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 June 2005 (21 years ago)
- Registered office
- 51 ST Mary's Road, Tonbridge, Kent, TN9 2LE
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 22 June 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Tonbridge
Other active specialist construction companies registered in Tonbridge.
- Logicore Systems Ltd2026
- Mango Construction Services Limited2016
- MDN Developments Limited2003
- MGN Repairs Management Limited2015
- Norris Carpentry and Construction Limited2014
- NSJ Joinery Limited2016
- Ontrack Commercial Fencing Limited2026
- Orchid Home Improvements Limited2024
All specialist construction companies in Tonbridge · All trades in Tonbridge · Specialist contractors across the UK
Frequently asked questions
When are John Knowles Builders Ltd's accounts due?
John Knowles Builders Ltd's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is John Knowles Builders Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is John Knowles Builders Ltd still trading?
John Knowles Builders 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 John Knowles Builders Ltd do?
John Knowles Builders Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is John Knowles Builders Ltd?
John Knowles Builders Ltd was incorporated on 27 June 2005, 21 years ago.
What is the penalty if John Knowles Builders 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 John Knowles Builders 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.