- Companies
- Specialist contractors
- Newmarket
- SDM (Newmarket) Ltd
SDM (Newmarket) Ltd
- Company number
- 08143967
- Incorporated
- 16 Jul 201214 years trading
- Registered office
- 7 Laureate Paddocks, Newmarket, Suffolk, CB8 0AP
- Nature of business
- Other specialised construction activities n.e.c.
SDM (Newmarket) Ltd is a 14-year-old private limited company registered in Newmarket, company number 08143967, one of 18 specialist construction companies in Newmarket. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 30 July 2026 is due at HMRC on 30 July 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 £2,291 (-69.6%) on the year before, to £1,001.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £24K against £23K owed within a year: 1.0 times cover.
- 1 employee 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 |
|---|---|---|---|---|---|
| 31 Jul 2025 | £1,001 | £24K | £23K | 1 | |
| 31 Jul 2024 | £3,292 | £15K | £13K | 1 | |
| 31 Jul 2023 | £1,079 | £12K | £12K | 1 | |
| 31 Jul 2022 | £1,056 | £15K | £16K | 1 | |
| 31 Jul 2021 | £15K | £55K | £41K | 1 | |
| 31 Jul 2020 | £776 | £34K | £34K | 1 | |
| 31 Jul 2019 | £17K | £55K | £39K | 1 | |
| 31 Jul 2018 | £749 | £90K | £91K | 1 | |
| 31 Jul 2017 | £5,083 | £76K | £73K | ||
| 31 Jul 2016 | £10K | £54K | £45K |
Who runs and owns SDM (Newmarket) Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| S*** M*** | Director | Jul 2012 |
Person with significant control
Where SDM (Newmarket) Ltd is registered
The registered office is in Newmarket (CB8), in the West Suffolk local authority area, East of England. Show CB8 0AP 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
Shared registered office
45 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if SDM (Newmarket) 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 31 Jul 2027 | £200 |
| 3 months late | 30 Oct 2027 | another £200 |
| 6 months late | 30 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jul 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
- 08143967
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 July 2012 (14 years ago)
- Registered office
- 7 Laureate Paddocks, Newmarket, Suffolk, CB8 0AP
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 16 July 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 Newmarket
Other active specialist construction companies registered in Newmarket.
- Wayne Thompson Limited2014
- Absolute Fire Safety Ltd2018
- Absolute Property Repairs Ltd2023
- Anglia Surfacing Limited2025
- Conceptum Ltd2022
- Crudu Group Ltd2016
- Ecsec Limited1979
- Everhealth Care Ltd2024
All specialist construction companies in Newmarket · All trades in Newmarket · Specialist contractors across the UK
Frequently asked questions
When are SDM (Newmarket) Ltd's accounts due?
SDM (Newmarket) Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 30 July 2026.
When is SDM (Newmarket) Ltd's CT600 due?
The CT600 for the period to 30 July 2026 is due at HMRC by 30 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is SDM (Newmarket) Ltd still trading?
SDM (Newmarket) 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 SDM (Newmarket) Ltd do?
SDM (Newmarket) Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is SDM (Newmarket) Ltd?
SDM (Newmarket) Ltd was incorporated on 16 July 2012, 14 years ago.
Who runs SDM (Newmarket) Ltd?
SDM (Newmarket) Ltd has 1 active director, the longest-serving appointed in Jul 2012. Their names and service addresses are on the Companies House register.
Who owns SDM (Newmarket) Ltd?
One person or company has significant control of SDM (Newmarket) Ltd: an individual (owns 75% or more of the shares).
What is the penalty if SDM (Newmarket) 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 SDM (Newmarket) 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.