- Companies
- Builders
- Gillingham
- Jon Whitmarsh Limited
Jon Whitmarsh Limited
- Company number
- 03948088
- Incorporated
- 15 Mar 200026 years trading
- Registered office
- 5 Lodbourne Green, Gillingham, Dorset, SP8 4EH
- Nature of business
- Construction of commercial buildings
Jon Whitmarsh Limited is a 26-year-old private limited company registered in Gillingham, company number 03948088, one of 162 building contractors in Gillingham. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £19K (+1.6%) on the year before, to £1.2M.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £1.5M against £291K owed within a year: 5.0 times cover.
- 4 employees on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £1.2M | £1.2M | £1.5M | £291K | 4 |
| 31 Mar 2025 | £1.2M | £1.3M | £1.4M | £245K | 4 |
| 31 Mar 2024 | £1.1M | £1.2M | £1.3M | £204K | 3 |
| 31 Mar 2023 | £1.1M | £1.2M | £1.3M | £213K | 3 |
| 31 Mar 2022 | £812K | £1M | £1M | £222K | 3 |
| 31 Mar 2021 | £822K | £999K | £1M | £204K | 3 |
| 31 Mar 2020 | £788K | £108K | £965K | £185K | 2 |
| 31 Mar 2019 | £791K | £110K | £951K | £167K | |
| 31 Mar 2018 | £834K | £155K | £1M | £190K | |
| 31 Mar 2017 | £718K | £83K | £870K | £163K |
Who runs and owns Jon Whitmarsh Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| J*** W*** | Director | Mar 2000 |
| J*** W*** | Secretary | Aug 2026 |
4 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| L*** W*** | Secretary | Mar 2000 | Mar 2009 |
| N*** W*** | Secretary | Mar 2009 | Aug 2026 |
| Alpha Secretarial Limited | Corporate Nominee Secretary | Mar 2000 | Mar 2000 |
| Alpha Direct Limited | Nominee director (company) | Mar 2000 | Mar 2000 |
Person with significant control
Where Jon Whitmarsh Limited is registered
The registered office is in Gillingham (SP8), in the Dorset local authority area, South West. Show SP8 4EH on a map.
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What happens if Jon Whitmarsh 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 03948088
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 March 2000 (26 years ago)
- Registered office
- 5 Lodbourne Green, Gillingham, Dorset, SP8 4EH
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 15 March 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 Gillingham
Other active building contractors registered in Gillingham.
- K.G. Property Limited2015
- Kana Builders Ltd2025
- Kent Brickwork Ltd2012
- Kent Building & Maintenance Limited2011
- Kentwin Ltd2020
- Kingsheath Plant Limited2018
- Kmaafo Group Ltd2019
- Kmuk Ltd2015
All building contractors in Gillingham · All trades in Gillingham · Builders across the UK
Frequently asked questions
When are Jon Whitmarsh Limited's accounts due?
Jon Whitmarsh Limited's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is Jon Whitmarsh Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Jon Whitmarsh Limited still trading?
Jon Whitmarsh 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 Jon Whitmarsh Limited do?
Jon Whitmarsh Limited is registered under Construction of commercial buildings (SIC 41201).
How old is Jon Whitmarsh Limited?
Jon Whitmarsh Limited was incorporated on 15 March 2000, 26 years ago.
Who runs Jon Whitmarsh Limited?
Jon Whitmarsh Limited has 1 active director, the longest-serving appointed in Mar 2000. Their names and service addresses are on the Companies House register.
Who owns Jon Whitmarsh Limited?
One person or company has significant control of Jon Whitmarsh Limited: an individual (owns 75% or more of the shares).
What is the penalty if Jon Whitmarsh 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 Jon Whitmarsh 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.