- Companies
- Civil engineering
- Southampton
- Whitman Builders Ltd
Whitman Builders Ltd
- Company number
- 06506999
- Incorporated
- 18 Feb 200818 years trading
- Registered office
- c/o Whitman Builders Limited, 11 Tenterton Avenue, Southampton, Hampshire, SO19 9HT
- Nature of business
- Construction of other civil engineering projects n.e.c.
Whitman Builders Ltd is a 18-year-old private limited company registered in Southampton, company number 06506999, one of 114 civil engineering contractors in Southampton. 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 £32K (+2.6%) on the year before, to £1.3M.
- Net assets rose in 6 of 7 year-on-year comparisons on record.
- Current assets of £1.7M against £240K owed within a year: 7.3 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2015 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £1.3M | £431K | £1.7M | £240K | 2 |
| 31 Mar 2024 | £1.2M | £342K | £1.7M | £190K | 2 |
| 31 Mar 2023 | £1.2M | £658K | £1.7M | £178K | 2 |
| 31 Mar 2022 | £1.2M | £905K | £1.9M | £365K | 3 |
| 31 Mar 2019 | £820K | £121K | £1.4M | £648K | 3 |
| 31 Mar 2018 | £843K | £466K | £1.1M | £241K | 3 |
| 31 Mar 2017 | £811K | £576K | £1.1M | £272K | 4 |
| 31 Mar 2016 | £770K | £688K | £964K | £213K | |
| 31 Mar 2015 | £590K | £499K | £798K | £233K |
Public contracts won
Whitman Builders Ltd has one public sector contract award on record; the ones with their own published value total £441K (2019). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Hampshire County Council | Winchester City Council - 2 New Build Houses(Dolphin Hill- TWYFORD) - AWARD | £441K | 10 Dec 2019 |
Where Whitman Builders Ltd is registered
The registered office is in Southampton (SO19), in the Southampton local authority area, South East. Show SO19 9HT on a map.
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Also registered at this address
1 other company uses the same registered office as Whitman Builders Ltd.
- Whitman Builders Southern LtdCivil engineering
What happens if Whitman 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 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
- 06506999
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 February 2008 (18 years ago)
- Registered office
- c/o Whitman Builders Limited, 11 Tenterton Avenue, Southampton, Hampshire, SO19 9HT
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 4 February 2026
- Charges (mortgages)
- 0 outstanding of 5 registered
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Southampton
Other active civil engineering contractors registered in Southampton.
- Whitman Builders Southern Ltd2025
- Williams Tucker Limited2023
- Winchester Highways Limited2021
- WN Construction Limited2016
- WSCC Limited2013
- XK Structures Ltd2020
- Zemytm Ltd2026
- 3 Counties Civil Engineering Limited2000
All civil engineering contractors in Southampton · All trades in Southampton · Civil engineering across the UK
Frequently asked questions
When are Whitman Builders Ltd's accounts due?
Whitman Builders Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Whitman Builders Ltd'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 Whitman Builders Ltd still trading?
Whitman 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 Whitman Builders Ltd do?
Whitman Builders Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Whitman Builders Ltd?
Whitman Builders Ltd was incorporated on 18 February 2008, 18 years ago.
Has Whitman Builders Ltd won public sector contracts?
Yes. Whitman Builders Ltd has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £441K), most recently from Hampshire County Council.
What is the penalty if Whitman 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 Whitman 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.