- Companies
- Property developers
- Reading
- Alter-House Ltd
Alter-House Ltd
- Company number
- 09964179
- Incorporated
- 21 Jan 201610 years trading
- Registered office
- 12 Eddleston Way, Tilehurst, Reading, Berkshire, RG30 4GY
- Nature of business
- Development of building projects; Construction of commercial buildings; Construction of domestic buildings; Other building completion and finishing
Alter-House Ltd is a 10-year-old private limited company registered in Reading, company number 09964179, one of 355 property development companies in Reading. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 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 up £3,326 (+15.9%) on the year before, to £24K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £1,819 against £26K owed within a year: 0.1 times cover.
- 1 employee on average during the year.
- 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 Jan 2026 | £24K | £1,819 | £26K | 1 | |
| 31 Jan 2025 | £21K | £5,145 | £26K | 1 | |
| 31 Jan 2024 | £26K | £1,086 | £27K | 1 | |
| 31 Jan 2023 | £24K | £1,226 | £25K | 1 | |
| 31 Jan 2022 | £13K | £446 | £14K | 1 | |
| 31 Jan 2021 | £9,122 | £532 | £9,654 | 1 | |
| 31 Jan 2020 | £391 | £1,591 | £1,982 | 1 | |
| 31 Jan 2019 | £841 | £1,652 | £2,493 | ||
| 31 Jan 2018 | £1,101 | £2,875 | £3,976 | ||
| 31 Jan 2017 | £124 | £29K | £29K | £29K |
Where Alter-House Ltd is registered
The registered office is in Reading (RG30), in the Reading local authority area, South East. Show RG30 4GY on a map.
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- Kingdom Motors & Services LtdFacilities management
- Great Cleaning Ltd. LtdCleaning companies
- Aj Waite Builders LimitedBuilders
- BG Windows Doors and Conservatories LtdInstallers
- Thoroughly Clean UK LtdCleaning companies
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What happens if Alter-House 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 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 09964179
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 January 2016 (10 years ago)
- Registered office
- 12 Eddleston Way, Tilehurst, Reading, Berkshire, RG30 4GY
- Nature of business
- Development of building projects (SIC 41100)
Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390) - Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 20 January 2026
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.
- Amberleigh Homes Limited1999
- Amicus VMS Limited2003
- Anchor House Properties Limited2000
- Angelfish Innovation Ltd2025
- Anson Trades Ltd2024
- Arh Construction Ltd2024
- Artisan Development Syndicate Limited2018
- Ash Hurst Goring Ltd2018
All property development companies in Reading · All trades in Reading · Property developers across the UK
Frequently asked questions
When are Alter-House Ltd's accounts due?
Alter-House Ltd's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is Alter-House Ltd's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Alter-House Ltd still trading?
Alter-House 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 Alter-House Ltd do?
Alter-House Ltd is registered under Development of building projects (SIC 41100); Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390).
How old is Alter-House Ltd?
Alter-House Ltd was incorporated on 21 January 2016, 10 years ago.
What is the penalty if Alter-House 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 Alter-House 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.