- Companies
- Property developers
- Leighton Buzzard
- Isis Builders Limited
Isis Builders Limited
- Company number
- 03283111
- Incorporated
- 25 Nov 199629 years trading
- Registered office
- 3 West Street, Leighton Buzzard, LU7 1DA
- Nature of business
- Development of building projects
Isis Builders Limited is a 29-year-old private limited company registered in Leighton Buzzard, company number 03283111, one of 54 property development companies in Leighton Buzzard. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £79K (-10.2%) on the year before, to £694K.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £1.4M against £747K owed within a year: 1.9 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £694K | £32K | £1.4M | £747K | 2 |
| 30 Nov 2024 | £773K | £164K | £1.2M | £424K | 2 |
| 30 Nov 2023 | £869K | £728K | £1.2M | £377K | 3 |
| 30 Nov 2022 | £835K | £52K | £1.6M | £364K | 3 |
| 30 Nov 2021 | £894K | £203K | £1.5M | £181K | 3 |
| 30 Nov 2020 | £872K | £140K | £1.4M | £145K | 3 |
Where Isis Builders Limited is registered
The registered office is in Leighton Buzzard (LU7), in the Central Bedfordshire local authority area, East of England. Show LU7 1DA on a map.
Other trade companies in LU7
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- S.E.C. Cladding LtdInstallers
- Dowell and Fields LimitedProperty developers
- Prime Seal Roofing & Guttering LtdRoofers
- Pristine Cleaning Solutions 83 LtdCleaning companies
- Marquez Aviation LimitedMachinery repair and installation
- Shazglobal LtdMechanics and garages
- L.T. Advanced Scaffolding LtdBuilders
Shared registered office
34 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 Isis Builders 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 03283111
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 November 1996 (29 years ago)
- Registered office
- 3 West Street, Leighton Buzzard, LU7 1DA
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 31 October 2025
- Charges (mortgages)
- 0 outstanding of 13 registered
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 Leighton Buzzard
Other active property development companies registered in Leighton Buzzard.
- J J Lynch Ground Works Limited2016
- Jensen Villas Limited2021
- Level Brickwork Ltd2021
- Lingstar Limited1996
- Luna Construction (Herts) Ltd2023
- Macaulay Carpentry Ltd2012
- Manser Estates Limited1986
- Millers Building Services Ltd2017
All property development companies in Leighton Buzzard · All trades in Leighton Buzzard · Property developers across the UK
Frequently asked questions
When are Isis Builders Limited's accounts due?
Isis Builders Limited's next accounts are due at Companies House by 31 August 2027 (in 323 days), covering the period to 30 November 2026.
When is Isis Builders Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Isis Builders Limited still trading?
Isis Builders 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 Isis Builders Limited do?
Isis Builders Limited is registered under Development of building projects (SIC 41100).
How old is Isis Builders Limited?
Isis Builders Limited was incorporated on 25 November 1996, 29 years ago.
What is the penalty if Isis Builders 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 Isis Builders 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.