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- Isatis Builders Ltd
Company profile · Property developers
Isatis Builders Ltd
Isatis Builders Ltd is a 8-year-old private limited company registered in London, company number 11611306, one of 14,100 property development companies in London. 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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Financial snapshot, 2025
From the balance sheet at 31 October 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Isatis Builders Ltd over the years
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 £2,466 (-441.9%) on the year before, to -£1,908.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | -£1,908 | £3,745 | £26K | 0 | |
| 31 Oct 2024 | £558 | £558 | 0 | ||
| 31 Oct 2023 | £558 | £558 | 0 | ||
| 31 Oct 2022 | £558 | £210 | £210 | £1,025 | 4 |
| 31 Oct 2021 | £892 | £683 | £1,683 | £2,622 | 2 |
| 31 Oct 2020 | £406 | £1,128 | £1,128 | £2,597 | 1 |
| 31 Oct 2019 | £100 |
Where Isatis Builders Ltd is registered
The registered office is in London (NW11), in the Barnet local authority area, London. Show NW11 0JL on a map.
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What happens if Isatis Builders 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 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
- 11611306
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 October 2018 (8 years ago)
- Registered office
- Flat B GND FLR Rear, 89 Leeside Crescent, London, NW11 0JL
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 16 July 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 London
Other active property development companies registered in London.
- Isd Plastering Ltd2019
- Isg Investments Limited2025
- Ish UK Venture Ltd2026
- Ishdoesproperty Ltd2026
- Isher Developers Ltd2024
- Isl Developments Limited2006
- Isla-Rae Property Ltd2025
- Island Blue Cyprus-UK Ltd2021
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Isatis Builders Ltd's accounts due?
Isatis Builders Ltd's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Isatis Builders Ltd'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 Isatis Builders Ltd still trading?
Isatis Builders 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 Isatis Builders Ltd do?
Isatis Builders Ltd is registered under Development of building projects (SIC 41100).
How old is Isatis Builders Ltd?
Isatis Builders Ltd was incorporated on 8 October 2018, 8 years ago.
What is the penalty if Isatis Builders 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 Isatis Builders 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.