- Companies
- Groundworks and demolition
- High Wycombe
- Smart Building & Damp Proofing Ltd
Smart Building & Damp Proofing Ltd
- Company number
- 15215288
- Incorporated
- 17 Oct 20232 years trading
- Registered office
- 115 Dashwood Avenue, High Wycombe, Bucks, HP12 3EB
- Nature of business
- Demolition; Other construction installation; Plastering; Other building completion and finishing
Smart Building & Damp Proofing Ltd is a 2-year-old private limited company registered in High Wycombe, company number 15215288, one of the UK's groundworks and demolition companies. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 Smart Building & Damp Proofing 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 up £1,967 (+819.6%) on the year before, to £2,207.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £2,207 | £3,867 | £2,870 | 0 | |
| 31 Oct 2024 | £240 | £4,263 | £5,648 | 1 |
Where Smart Building & Damp Proofing Ltd is registered
The registered office is in High Wycombe (HP12), in the Buckinghamshire local authority area, South East. Show HP12 3EB on a map.
Other trade companies in HP12
- Ta Repairs and Courier LtdMechanics and garages
- Precision Bodyworkz LimitedMechanics and garages
- Rha Developers LtdProperty developers
- Trade Cars Ukk LimitedMotor traders
- VMD Carpentry LtdProperty developers
- Ah New Tyres LtdMotor traders
- Georges Auto Repair LtdMechanics and garages
- Smart Breeze LimitedElectricians
What happens if Smart Building & Damp Proofing 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 15215288
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 October 2023 (2 years ago)
- Registered office
- 115 Dashwood Avenue, High Wycombe, Bucks, HP12 3EB
- Nature of business
- Demolition (SIC 43110)
Other construction installation (SIC 43290)
Plastering (SIC 43310)
Other building completion and finishing (SIC 43390) - Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 16 October 2025
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in High Wycombe
Other active groundworks and demolition companies registered in High Wycombe.
All groundworks and demolition companies in High Wycombe · All trades in High Wycombe · Groundworks and demolition across the UK
Frequently asked questions
When are Smart Building & Damp Proofing Ltd's accounts due?
Smart Building & Damp Proofing Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Smart Building & Damp Proofing Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Smart Building & Damp Proofing Ltd still trading?
Smart Building & Damp Proofing 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 Smart Building & Damp Proofing Ltd do?
Smart Building & Damp Proofing Ltd is registered under Demolition (SIC 43110); Other construction installation (SIC 43290); Plastering (SIC 43310); Other building completion and finishing (SIC 43390).
How old is Smart Building & Damp Proofing Ltd?
Smart Building & Damp Proofing Ltd was incorporated on 17 October 2023, 2 years ago.
What is the penalty if Smart Building & Damp Proofing 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 Smart Building & Damp Proofing 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.