- Companies
- Specialist contractors
- Mitcham
- Standard Deviation Ltd
Standard Deviation Ltd
- Company number
- 08127969
- Incorporated
- 3 Jul 201214 years trading
- Registered office
- 10 Tyrrell Square, Mitcham, Surrey, CR4 3SD
- Nature of business
- Other specialised construction activities n.e.c.; Other letting and operating of own or leased real estate; Management of real estate on a fee or contract basis; Financial management
Standard Deviation Ltd is a 14-year-old private limited company registered in Mitcham, company number 08127969, one of 38 specialist construction companies in Mitcham. 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 £11K (+87.1%) on the year before, to £24K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- 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 Mar 2025 | £24K | £24K | 1 | ||
| 31 Mar 2024 | £13K | £13K | 1 | ||
| 31 Mar 2023 | £11K | £11K | £0 | 1 | |
| 31 Mar 2022 | £13K | £13K | 1 | ||
| 31 Mar 2021 | £22K | £22K | £6 | 1 | |
| 31 Mar 2020 | £25K | £25K | 1 | ||
| 31 Mar 2019 | £19K | £24K | £4,792 | 1 | |
| 31 Mar 2018 | £39K | £46K | £6,669 | ||
| 31 Mar 2017 | £36K | £38K | £1,946 | ||
| 31 Jul 2016 | £62K | £74K | £12K |
Where Standard Deviation Ltd is registered
The registered office is in Mitcham (CR4), in the Merton local authority area, London. Show CR4 3SD on a map.
Other trade companies in CR4
- Mendevo LimitedFloor and wall tilers
- Az Auto Body Repair LtdMechanics and garages
- Welcome Maintenance LimitedPainters and decorators
- Fixmot LtdMechanics and garages
- MPB Property Care LtdFinishing trades
- Aoo Building Services LtdBuilders
- LDN Plumbing Heating and Cooling LimitedPlumbers and heating engineers
- Dgha Construction LtdBuilders
What happens if Standard Deviation 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
- 08127969
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 July 2012 (14 years ago)
- Registered office
- 10 Tyrrell Square, Mitcham, Surrey, CR4 3SD
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Other letting and operating of own or leased real estate (SIC 68209)
Management of real estate on a fee or contract basis (SIC 68320)
Financial management (SIC 70221) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 16 May 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 Mitcham
Other active specialist construction companies registered in Mitcham.
- Steel Erecting Services Limited2003
- Surveytech Ltd.1997
- Takov Ltd2017
- VNB Construction Ltd2014
- Vornicu Construction Ltd2024
- Willow Powder Coating Limited2007
- Youny Ltd2025
- Altodor Ltd2016
All specialist construction companies in Mitcham · All trades in Mitcham · Specialist contractors across the UK
Frequently asked questions
When are Standard Deviation Ltd's accounts due?
Standard Deviation 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 Standard Deviation 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 Standard Deviation Ltd still trading?
Standard Deviation 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 Standard Deviation Ltd do?
Standard Deviation Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Other letting and operating of own or leased real estate (SIC 68209); Management of real estate on a fee or contract basis (SIC 68320); Financial management (SIC 70221).
How old is Standard Deviation Ltd?
Standard Deviation Ltd was incorporated on 3 July 2012, 14 years ago.
What is the penalty if Standard Deviation 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 Standard Deviation 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.