- Companies
- Installers
- London
- K Design and Construction Ltd
K Design and Construction Ltd
- Company number
- 13647223
- Incorporated
- 28 Sep 20215 years trading
- Registered office
- Flat B Ragged House, 16 Vine Hill, London, EC1R 5DX
- Nature of business
- Other construction installation
K Design and Construction Ltd is a 5-year-old private limited company registered in London, company number 13647223, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 down £96K (-241.5%) on the year before, to -£56K.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £11K against £81K owed within a year: 0.1 times cover.
- 3 employees on average, up from 2 the year before.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | -£56K | £11K | £81K | 3 | |
| 31 Dec 2024 | £40K | £78K | £58K | 2 | |
| 30 Sep 2023 | £31K | £21K | £25K | 2 | |
| 30 Sep 2022 | -£25K | £92K | £159K | 2 |
Where K Design and Construction Ltd is registered
The registered office is in London (EC1R), in the Camden local authority area, London. Show EC1R 5DX on a map.
Other trade companies in EC1R
- Aegis Energy Trading LtdInstallers
- Beacon Learning Group LtdProperty developers
- Bailmont LimitedFinishing trades
- G2 Core LimitedElectricians
- Penchina Properties Developments LtdProperty developers
- Rabaterra LtdProperty developers
- CF Reading Road LimitedProperty developers
- Evofleet LtdMechanics and garages
What happens if K Design and Construction 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 13647223
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 September 2021 (5 years ago)
- Registered office
- Flat B Ragged House, 16 Vine Hill, London, EC1R 5DX
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 17 December 2025
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- K P Murphy Maintenance Ltd2024
- K W Carpentry Services Limited2003
- K&K Lift Limited2025
- K&R Fireprotection Ltd2023
- K&T Solar and Bess Ltd2026
- K.J.R.Associates Ltd2009
- K2Lvu Ltd2026
- Kairos Construct Limited2025
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are K Design and Construction Ltd's accounts due?
K Design and Construction Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is K Design and Construction Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is K Design and Construction Ltd still trading?
K Design and Construction 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 K Design and Construction Ltd do?
K Design and Construction Ltd is registered under Other construction installation (SIC 43290).
How old is K Design and Construction Ltd?
K Design and Construction Ltd was incorporated on 28 September 2021, 5 years ago.
What is the penalty if K Design and Construction 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 K Design and Construction 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.