- Company number
- 11061740
- Incorporated
- 13 Nov 20178 years trading
- Registered office
- 64 Victoria Road, Romford, RM1 2JH
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Other construction installation
Kastle Builders Ltd is a 8-year-old private limited company registered in Romford, company number 11061740, one of 911 building contractors in Romford. Companies House shows its accounts as overdue: they were due on 31 August 2026.
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 £61K (-115.9%) on the year before, to -£8,397.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £35K against £43K owed within a year: 0.8 times cover.
- 2 employees on average, up from 0 the year before.
- Balance sheets on record for 7 years, 2018 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2024 | -£8,397 | £35K | £43K | 2 | |
| 30 Nov 2023 | £53K | £96K | £43K | 0 | |
| 30 Nov 2022 | £97K | £392K | £295K | 1 | |
| 30 Nov 2021 | £118K | £338K | £220K | 0 | |
| 30 Nov 2020 | £75K | £252K | £176K | 0 | |
| 30 Nov 2019 | £2 | £1 | 0 | ||
| 30 Nov 2018 | £2 | £1 |
Where Kastle Builders Ltd is registered
The registered office is in Romford (RM1), in the Havering local authority area, London. Show RM1 2JH on a map.
Other trade companies in RM1
- Steam & Cool Commercial Engineering LimitedMachinery repair and installation
- Saix LtdSpecialist contractors
- Mega Ark LimitedBuilders
- Damir Auto LtdMotor traders
- Vascobuild LimitedBuilders
- Dream Living Spaces LtdBuilders
- Douglas Windows and Doors LimitedGlaziers
- Sergei SSM Builders LtdFinishing trades
Also registered at this address
1 other company uses the same registered office as Kastle Builders Ltd.
- Leod Builders LimitedSpecialist contractors
What happens if Kastle Builders Ltd files late
If the accounts reach Companies House today, the late filing penalty is £375 (£750 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2026 to 30 Sep 2026 | £150 |
| 1 to 3 months late | 1 Oct 2026 to 30 Nov 2026 | £375 |
| 3 to 6 months late | 1 Dec 2026 to 28 Feb 2027 | £750 |
| More than 6 months late | From 1 Mar 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2026 | £200 |
| 3 months late | 28 Feb 2027 | another £200 |
| 6 months late | 30 May 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 2027 | 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
- 11061740
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 November 2017 (8 years ago)
- Registered office
- 64 Victoria Road, Romford, RM1 2JH
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other construction installation (SIC 43290) - Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2024
- Last confirmation statement
- 2 November 2025
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Romford
Other active building contractors registered in Romford.
- KDL7 Ltd2020
- Kebabyum Services Ltd2025
- Kedco Construction Ltd2020
- Kelmscott Properties Limited2018
- Kenap Ltd2026
- Kevin Daniel Constructions Ltd2015
- Khasriya Limited2017
- Khinda Developments Ltd2018
All building contractors in Romford · All trades in Romford · Builders across the UK
Frequently asked questions
When are Kastle Builders Ltd's accounts due?
Kastle Builders Ltd's accounts were due at Companies House on 31 August 2026 and the register shows them as overdue.
When is Kastle Builders Ltd's CT600 due?
The CT600 for the period to 30 November 2025 is due at HMRC by 30 November 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2026.
Is Kastle Builders Ltd still trading?
Kastle Builders Ltd is listed as active on the Companies House register (checked 12 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 Kastle Builders Ltd do?
Kastle Builders Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other construction installation (SIC 43290).
How old is Kastle Builders Ltd?
Kastle Builders Ltd was incorporated on 13 November 2017, 8 years ago.
What is the penalty if Kastle 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 Kastle Builders Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.