- Company number
- 12824303
- Incorporated
- 19 Aug 20206 years trading
- Registered office
- Office 10 165 A 165 A, Heath Lane Upper, Dartford, Kent, DA1 2TW
- Nature of business
- Construction of domestic buildings; Buying and selling of own real estate; Other letting and operating of own or leased real estate
Tomblyboo Developments Ltd is a 6-year-old private limited company registered in Dartford, company number 12824303, one of 256 building contractors in Dartford. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Tomblyboo Developments LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £402 (-11%) on the year before, to £3,239.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £5,817 against £2,579 owed within a year: 2.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £3,239 | £5,817 | £2,579 | 0 | |
| 31 Aug 2024 | £3,641 | £3,892 | £252 | 0 | |
| 31 Aug 2023 | £2,567 | £3,456 | £890 | 0 | |
| 31 Aug 2022 | £636 | £1,024 | £389 | 0 | |
| 31 Aug 2021 | £1 |
Where Tomblyboo Developments Ltd is registered
The registered office is in Dartford (DA1), in the Dartford local authority area, South East. Show DA1 2TW on a map.
Other trade companies in DA1
- Unit 6 Bespoke LtdSpecialist contractors
- Smartlifting LtdBuilders
- Degrees Bespoke Finishes LtdPlasterers
- A & A Electrical and Refrigeration LtdBuilders
- Elm Servicing LtdMachinery repair and installation
- WND Refrigeration LimitedPlumbers and heating engineers
- Moore Flooring and Sons LtdFloor and wall tilers
- Kinergy Systems LtdElectricians
What happens if Tomblyboo Developments 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 12824303
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 August 2020 (6 years ago)
- Registered office
- Office 10 165 A 165 A, Heath Lane Upper, Dartford, Kent, DA1 2TW
- Nature of business
- Construction of domestic buildings (SIC 41202)
Buying and selling of own real estate (SIC 68100)
Other letting and operating of own or leased real estate (SIC 68209) - Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 18 August 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 Dartford
Other active building contractors registered in Dartford.
- Top Construction & Refurbishment Services Ltd2023
- TP Cladding Ltd2025
- True Design and Consulting Ltd2015
- TS Unibuild Ltd2025
- UK Building Interior Ltd2019
- Unic Group Ltd2020
- V&F Premier Services Ltd2026
- Valdy Ltd2024
All building contractors in Dartford · All trades in Dartford · Builders across the UK
Frequently asked questions
When are Tomblyboo Developments Ltd's accounts due?
Tomblyboo Developments Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Tomblyboo Developments Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Tomblyboo Developments Ltd still trading?
Tomblyboo Developments 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 Tomblyboo Developments Ltd do?
Tomblyboo Developments Ltd is registered under Construction of domestic buildings (SIC 41202); Buying and selling of own real estate (SIC 68100); Other letting and operating of own or leased real estate (SIC 68209).
How old is Tomblyboo Developments Ltd?
Tomblyboo Developments Ltd was incorporated on 19 August 2020, 6 years ago.
What is the penalty if Tomblyboo Developments 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 Tomblyboo Developments 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.