- Companies
- Builders
- Bexleyheath
- Hartt Ltd
Hartt Ltd
- Company number
- 12183833
- Incorporated
- 2 Sep 20197 years trading
- Registered office
- 28 Herbert Road, Bexleyheath, DA7 4QF
- Nature of business
- Construction of domestic buildings
Hartt Ltd is a 7-year-old private limited company registered in Bexleyheath, company number 12183833, one of 98 building contractors in Bexleyheath. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 up £21K (+26.7%) on the year before, to £98K.
- Net assets rose in 4 of 4 year-on-year comparisons on record.
- Current assets of £117K against £14K owed within a year: 8.5 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2020 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2024 | £98K | £95K | £117K | £14K | 0 |
| 30 Sep 2023 | £77K | £22K | £72K | £75 | 0 |
| 30 Sep 2022 | £55K | £43K | £51K | £3,479 | 0 |
| 30 Sep 2021 | £31K | £22K | £27K | £3,849 | 0 |
| 30 Sep 2020 | £16K | £6,266 | £11K | £4,779 | 0 |
Where Hartt Ltd is registered
The registered office is in Bexleyheath (DA7), in the Bexley local authority area, London. Show DA7 4QF on a map.
Other trade companies in DA7
- Heyplumber LtdPlumbers and heating engineers
- Volt&Valve LtdMachinery repair and installation
- Odessa Services LtdCleaning companies
- TK Lifts LimitedBuilders
- Tommy Wells LimitedScaffolders
- Thumwood’S Build LtdFinishing trades
- A&E Elite Groundworks LtdBuilders
- Noonan Civil Engineering LtdCivil engineering
What happens if Hartt 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 12183833
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 September 2019 (7 years ago)
- Registered office
- 28 Herbert Road, Bexleyheath, DA7 4QF
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 1 September 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 Bexleyheath
Other active building contractors registered in Bexleyheath.
- Hilton Manor Homes Limited2009
- Hmi Builders Ltd2026
- Housing Pro Limited2022
- Itsco.Construction Ltd2024
- Ivanz Limited2025
- J Bains Construction Ltd2014
- J. Howell Building Services Ltd2004
- Jinda Construction Ltd2019
All building contractors in Bexleyheath · All trades in Bexleyheath · Builders across the UK
Frequently asked questions
When are Hartt Ltd's accounts due?
Hartt Ltd's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Hartt Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Hartt Ltd still trading?
Hartt 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 Hartt Ltd do?
Hartt Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Hartt Ltd?
Hartt Ltd was incorporated on 2 September 2019, 7 years ago.
What is the penalty if Hartt 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 Hartt 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.