- Companies
- Builders
- Rickmansworth
- Mad Dog Developers Limited
Mad Dog Developers Limited
- Company number
- 09043634
- Incorporated
- 16 May 201412 years trading
- Registered office
- 44 Links Way, Croxley Green, Rickmansworth, WD3 3RQ
- Nature of business
- Construction of domestic buildings
Mad Dog Developers Limited is a 12-year-old private limited company registered in Rickmansworth, company number 09043634, one of 76 building contractors in Rickmansworth. 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 down £100K (-21.1%) on the year before, to £374K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £544K against £902K owed within a year: 0.6 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 | £374K | £3,998 | £544K | £902K | 0 |
| 31 Mar 2025 | £474K | £9,230 | £547K | £890K | 0 |
| 31 Mar 2024 | £676K | £19K | £550K | £897K | 0 |
| 31 Mar 2023 | £703K | £33K | £582K | £911K | 2 |
| 31 Mar 2022 | £608K | £49K | £1.1M | £1.3M | 2 |
| 31 Mar 2021 | £276K | £5,627 | £20K | £1.5M | 2 |
| 31 Mar 2020 | £108K | £20K | £24K | £1.1M | 2 |
| 31 Mar 2019 | £1,894 | £0 | £735K | 2 | |
| 31 Mar 2018 | £18K | £0 | £15K | £706K | 2 |
| 31 Mar 2017 | £6,760 | £10K | £29K | £661K | 2 |
Where Mad Dog Developers Limited is registered
The registered office is in Rickmansworth (WD3), in the Three Rivers local authority area, East of England. Show WD3 3RQ on a map.
Other trade companies in WD3
- DB Roofing Services LtdRoofers
- Ijesha Real Estate LtdProperty developers
- Aa Estate Developers LtdProperty developers
- DW17 LimitedProperty developers
- Twelve Construct LtdProperty developers
- Mill End Motor Company LtdMotor traders
- Daf Construction Services LtdBuilders
- J&V Customs LtdMechanics and garages
Also registered at this address
1 other company uses the same registered office as Mad Dog Developers Limited.
- Mad Dog Construction LimitedBuilders
What happens if Mad Dog Developers 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
- 09043634
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 May 2014 (12 years ago)
- Registered office
- 44 Links Way, Croxley Green, Rickmansworth, WD3 3RQ
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 5 May 2026
- Charges (mortgages)
- 1 outstanding of 4 registered
- Previous names
- Mad Dog Deveopers Ltd (until 16 Sep 2014)
Maddogdevelopers Limited (until 2 Sep 2014)
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 Rickmansworth
Other active building contractors registered in Rickmansworth.
- Manor House Resources Ltd2026
- Marden Writtle Limited2020
- Montway Limited1996
- Morrow Civils Limited2025
- MR Hands Ltd2024
- Murrell Estates Limited1967
- NK.Brothers Groundwork Ltd2026
- O'Halloran & Son Formwork Limited2017
All building contractors in Rickmansworth · All trades in Rickmansworth · Builders across the UK
Frequently asked questions
When are Mad Dog Developers Limited's accounts due?
Mad Dog Developers 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 Mad Dog Developers 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 Mad Dog Developers Limited still trading?
Mad Dog Developers 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 Mad Dog Developers Limited do?
Mad Dog Developers Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Mad Dog Developers Limited?
Mad Dog Developers Limited was incorporated on 16 May 2014, 12 years ago.
What is the penalty if Mad Dog Developers 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 Mad Dog Developers 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.