- Company number
- 12089005
- Incorporated
- 6 Jul 20197 years trading
- Registered office
- 10C Dane Hill Road, Kennett, Newmarket, CB8 7QX
- Nature of business
- Construction of domestic buildings; Other building completion and finishing
Ridgeback Construction & Developments Ltd is a 7-year-old private limited company registered in Newmarket, company number 12089005, one of 66 building contractors in Newmarket. 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 down £3,032 (-10.2%) on the year before, to £27K.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £68K against £133K owed within a year: 0.5 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £27K | £68K | £133K | 2 | |
| 31 Mar 2024 | £30K | £23K | £99K | 2 | |
| 31 Mar 2023 | £34K | £78K | £97K | 2 | |
| 31 Mar 2022 | £5,489 | £121K | £114K | 2 | |
| 31 Mar 2021 | £6,474 | £94K | £67K | 0 | |
| 31 Mar 2020 | £5,711 | £38K | £44K | £49K | 1 |
Where Ridgeback Construction & Developments Ltd is registered
The registered office is in Newmarket (CB8), in the East Cambridgeshire local authority area, East of England. Show CB8 7QX on a map.
Other trade companies in CB8
- Houndworks Property Maintenance LtdCleaning companies
- Ajm Carpentry & Construction LtdBuilders
- Gemland Automotive LimitedMechanics and garages
- Safi Autobody Shop LimitedMechanics and garages
- BC Plumbing & Heating Contractors LtdPlumbers and heating engineers
- Anglia Landscaping Group LimitedLandscapers and gardeners
- Zee Mobile Tyres LtdMotor traders
- Ajs Developments (Burwell) LimitedProperty developers
What happens if Ridgeback Construction & Developments 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
- 12089005
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 July 2019 (7 years ago)
- Registered office
- 10C Dane Hill Road, Kennett, Newmarket, CB8 7QX
- Nature of business
- Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 5 July 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 Newmarket
Other active building contractors registered in Newmarket.
- Rocc Building Company Limited2022
- RR Home&Garden Improvement Ltd2023
- Safehands Solutions Ltd2025
- SDS Construction & Tiling Limited2019
- SS and B Brickworks Ltd2018
- Station Road Developments (Histon) Ltd2023
- Steven Seals Builder Limited2009
- TC Property Developments Ltd2013
All building contractors in Newmarket · All trades in Newmarket · Builders across the UK
Frequently asked questions
When are Ridgeback Construction & Developments Ltd's accounts due?
Ridgeback Construction & Developments Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Ridgeback Construction & Developments 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 Ridgeback Construction & Developments Ltd still trading?
Ridgeback Construction & Developments 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 Ridgeback Construction & Developments Ltd do?
Ridgeback Construction & Developments Ltd is registered under Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390).
How old is Ridgeback Construction & Developments Ltd?
Ridgeback Construction & Developments Ltd was incorporated on 6 July 2019, 7 years ago.
What is the penalty if Ridgeback Construction & Developments 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 Ridgeback Construction & Developments 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.