- Company number
- 16373111
- Incorporated
- 8 Apr 20251 year trading
- Registered office
- 15 Ilmington Road, Harrow, HA3 0NQ
- Nature of business
- Construction of domestic buildings
Garden Rooms &Building Service Ltd is a 1-year-old private limited company registered in Harrow, company number 16373111, one of 793 building contractors in Harrow. Its next accounts are due at Companies House on 8 January 2027, and its first CT600 is due at HMRC on 7 April 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Garden Rooms &Building Service Ltd is registered
The registered office is in Harrow (HA3), in the Brent local authority area, London. Show HA3 0NQ on a map.
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- Direct Sparks LtdMachinery repair and installation
- Meral Decoration & Maintenance LtdPainters and decorators
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- Floyd Cleaners LimitedCleaning companies
- Amalia&Ioana LimitedBuilders
What happens if Garden Rooms &Building Service 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 8 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 9 Jan 2027 to 8 Feb 2027 | £150 |
| 1 to 3 months late | 9 Feb 2027 to 8 Apr 2027 | £375 |
| 3 to 6 months late | 9 Apr 2027 to 8 Jul 2027 | £750 |
| More than 6 months late | From 9 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 16373111
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 April 2025 (1 year ago)
- Registered office
- 15 Ilmington Road, Harrow, HA3 0NQ
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 7 April 2026
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 Harrow
Other active building contractors registered in Harrow.
- GBN Installation Ltd2024
- GBP Construct Limited2021
- GBS 56 Ltd2021
- George Formwork Limited2022
- Gerb Decore Ltd2026
- Gheflo Ltd2026
- Gheogips Limited2021
- Gir Builders Limited2025
All building contractors in Harrow · All trades in Harrow · Builders across the UK
Frequently asked questions
When are Garden Rooms &Building Service Ltd's accounts due?
Garden Rooms &Building Service Ltd's next accounts are due at Companies House by 8 January 2027 (in 87 days), covering the period to 30 April 2026.
When is Garden Rooms &Building Service Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 7 April 2026, due by 7 April 2027, and one for the period to 30 April 2026, due by 30 April 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Garden Rooms &Building Service Ltd still trading?
Garden Rooms &Building Service 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 Garden Rooms &Building Service Ltd do?
Garden Rooms &Building Service Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Garden Rooms &Building Service Ltd?
Garden Rooms &Building Service Ltd was incorporated on 8 April 2025, 1 year ago.
What is the penalty if Garden Rooms &Building Service 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 Garden Rooms &Building Service 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.