- Companies
- Property developers
- Reading
- Silon Engineering and Construction Limited
Silon Engineering and Construction Limited
- Company number
- 09256252
- Incorporated
- 9 Oct 201412 years trading
- Registered office
- 44 London Street, Reading, RG1 4SQ
- Nature of business
- Development of building projects; Construction of water projects
Silon Engineering and Construction Limited is a 12-year-old private limited company registered in Reading, company number 09256252, one of 355 property development companies in Reading. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £599 (+0.8%) on the year before, to £80K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £113K against £76K owed within a year: 1.5 times cover.
- 4 employees 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 Oct 2025 | £80K | £31K | £113K | £76K | 4 |
| 31 Oct 2024 | £79K | £29K | £101K | £84K | 4 |
| 31 Oct 2023 | £36K | £6,654 | £11K | £46K | 4 |
| 31 Oct 2022 | £99K | £73K | £126K | £91K | 4 |
| 31 Oct 2021 | £152K | £132K | £204K | £113K | 2 |
| 31 Oct 2020 | £152K | £99K | £181K | £93K | 2 |
| 31 Oct 2019 | £164K | £83K | £162K | £38K | 2 |
| 31 Oct 2018 | £151K | £60K | £150K | £38K | 1 |
| 31 Oct 2017 | £104K | £59K | £152K | £63K | 1 |
| 31 Oct 2016 | £55K | £72K | £84K | £48K |
Public contracts won
Silon Engineering and Construction Limited has one public sector contract award on record (2024). Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Wessex Water Services Ltd | Design and Build Contractors (Minor Works) Framework Agreement | Ceiling, not shown | 12 Sep 2024 |
Where Silon Engineering and Construction Limited is registered
The registered office is in Reading (RG1), in the Reading local authority area, South East. Show RG1 4SQ on a map.
Other trade companies in RG1
- Mais&Co LtdJoiners and carpenters
- Testt LtdRoofers
- Geminifix LtdFinishing trades
- Rux-1 LtdMotor traders
- Dembek Project Consulting LimitedFinishing trades
- Berkshire Premier Cleaning LtdCleaning companies
- Alpha Pistons LimitedMotor traders
- BH Motors Reading LimitedMechanics and garages
Also registered at this address
2 other companies use the same registered office as Silon Engineering and Construction Limited.
- Glaart LimitedProperty developers
- Pa Construction (Civils) LimitedBuilders
What happens if Silon Engineering and Construction 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 09256252
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 October 2014 (12 years ago)
- Registered office
- 44 London Street, Reading, RG1 4SQ
- Nature of business
- Development of building projects (SIC 41100)
Construction of water projects (SIC 42910) - Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 9 October 2025
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Reading
Other active property development companies registered in Reading.
- Silverbow Consultants Limited2025
- Simple Plan Home Builders UK Ltd2021
- Sjsimpson Design and Build (Arborfield)Ltd Ltd2025
- Smallbone Build Ltd2020
- Smart Split Investments Ltd2025
- Somerville and Sons Ltd2016
- Southern Stoves Limited2014
- Spare Room Solutions Limited2016
All property development companies in Reading · All trades in Reading · Property developers across the UK
Frequently asked questions
When are Silon Engineering and Construction Limited's accounts due?
Silon Engineering and Construction Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Silon Engineering and Construction Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Silon Engineering and Construction Limited still trading?
Silon Engineering and Construction 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 Silon Engineering and Construction Limited do?
Silon Engineering and Construction Limited is registered under Development of building projects (SIC 41100); Construction of water projects (SIC 42910).
How old is Silon Engineering and Construction Limited?
Silon Engineering and Construction Limited was incorporated on 9 October 2014, 12 years ago.
Has Silon Engineering and Construction Limited won public sector contracts?
Yes. Silon Engineering and Construction Limited has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Wessex Water Services Ltd.
What is the penalty if Silon Engineering and Construction 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 Silon Engineering and Construction 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.