- Companies
- Specialist contractors
- South Croydon
- Dulwich Building Co Ltd
Dulwich Building Co Ltd
- Company number
- 15523372
- Incorporated
- 26 Feb 20242 years trading
- Registered office
- Flat 6, 3 Addington Road, South Croydon, CR2 8RE
- Nature of business
- Other specialised construction activities n.e.c.
Dulwich Building Co Ltd is a 2-year-old private limited company registered in South Croydon, company number 15523372, one of 34 specialist construction companies in South Croydon. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 28 February 2025, as filed at Companies House.
Where Dulwich Building Co Ltd is registered
The registered office is in South Croydon (CR2), in the Croydon local authority area, London. Show CR2 8RE on a map.
Other trade companies in CR2
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- Ottorigo LimitedInstallers
- DRJ Electricals-Gas LtdElectricians
- The New Drivers Shop LtdMotor traders
- Knoxford Plumbing & Heating LtdPlumbers and heating engineers
- Frontline Design & Build LtdBuilders
- Vellarowheels LtdMotor traders
- Lady Ace Cleaning Co LimitedCleaning companies
What happens if Dulwich Building Co 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 15523372
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 February 2024 (2 years ago)
- Registered office
- Flat 6, 3 Addington Road, South Croydon, CR2 8RE
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 29 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 24 January 2026
- Previous names
- Hilaj Brothers Construction Ltd (until 31 Mar 2026)
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in South Croydon
Other active specialist construction companies registered in South Croydon.
- Dyn Construction Ltd2025
- Fine Spec Ltd2024
- Fischer Maintenance Services Limited2008
- Gaybank Construction Limited1964
- Grada Construction Ltd2019
- H&K - RS Construction Ltd2015
- Harvey Contracts (South East) Ltd2012
- Inex Consult Ltd2025
All specialist construction companies in South Croydon · All trades in South Croydon · Specialist contractors across the UK
Frequently asked questions
When are Dulwich Building Co Ltd's accounts due?
Dulwich Building Co Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Dulwich Building Co Ltd's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is Dulwich Building Co Ltd still trading?
Dulwich Building Co 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 Dulwich Building Co Ltd do?
Dulwich Building Co Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Dulwich Building Co Ltd?
Dulwich Building Co Ltd was incorporated on 26 February 2024, 2 years ago.
What is the penalty if Dulwich Building Co 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 Dulwich Building Co 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.