- Companies
- Roofers
- Birmingham
- SDH Advanced Developments Group Ltd
SDH Advanced Developments Group Ltd
- Company number
- 12118481
- Incorporated
- 23 Jul 20197 years trading
- Registered office
- 315 Bordesley Green East, Stechford, Birmingham, West Midlands, B33 8QF
- Nature of business
- Roofing activities
SDH Advanced Developments Group Ltd is a 7-year-old private limited company registered in Birmingham, company number 12118481, one of 141 roofing companies in Birmingham. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 SDH Advanced Developments Group 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 £38K (-119.1%) on the year before, to -£6,099.
- Net assets rose in 4 of 5 year-on-year comparisons on record.
- Current assets of £55K against £59K owed within a year: 0.9 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | -£6,099 | £55K | £59K | 2 | |
| 31 Jul 2024 | £32K | £97K | £65K | 2 | |
| 31 Jul 2023 | £10K | £68K | £60K | 2 | |
| 31 Jul 2022 | £2,807 | £93K | £95K | 2 | |
| 31 Jul 2021 | £83 | £62K | £70K | 1 | |
| 31 Jul 2020 | -£438 | £11K | £22K | 1 |
Public contracts won
SDH Advanced Developments Group Ltd has one public sector contract award on record (2024). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Warwickshire Police | Leek Wootton Sports Pavilion Refurbishment Project - AWARD | 19 Apr 2024 |
Where SDH Advanced Developments Group Ltd is registered
The registered office is in Birmingham (B33), in the Birmingham local authority area, West Midlands. Show B33 8QF on a map.
Other trade companies in B33
- Pro Line Roofing and Fascias LimitedRoofers
- Ak Building Works LtdBuilders
- Western Worldwide Aviation LtdMachinery repair and installation
- James Gorton LtdBuilders
- Kaka Builder LtdBuilders
- J Truck LtdMechanics and garages
- Pamiri Energy UK LtdCivil engineering
- Cool and Heat Distribution LtdMachinery repair and installation
What happens if SDH Advanced Developments Group 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 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 12118481
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 July 2019 (7 years ago)
- Registered office
- 315 Bordesley Green East, Stechford, Birmingham, West Midlands, B33 8QF
- Nature of business
- Roofing activities (SIC 43910)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 22 July 2026
Filing notes for roofing companies
Roofing companies commonly work under CIS and run vans and access equipment, so CIS deductions and capital allowances are the two things to get right.
Similar companies in Birmingham
Other active roofing companies registered in Birmingham.
- Serenity Roofing & Guttering Ltd2026
- Shimmer N Sheen Ltd2023
- Solar Install Solutions Ltd2023
- Solar Workingforce Ltd2025
- Solihull Roofing & Maintenance Limited2023
- Stormguard Roofers Ltd2025
- Summit Seal Roofing Ltd2025
- TD Roofing & Chimneys Ltd2025
All roofing companies in Birmingham · All trades in Birmingham · Roofers across the UK
Frequently asked questions
When are SDH Advanced Developments Group Ltd's accounts due?
SDH Advanced Developments Group Ltd's next accounts are due at Companies House by 30 April 2027 (in 200 days), covering the period to 31 July 2026.
When is SDH Advanced Developments Group Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is SDH Advanced Developments Group Ltd still trading?
SDH Advanced Developments Group 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 SDH Advanced Developments Group Ltd do?
SDH Advanced Developments Group Ltd is registered under Roofing activities (SIC 43910).
How old is SDH Advanced Developments Group Ltd?
SDH Advanced Developments Group Ltd was incorporated on 23 July 2019, 7 years ago.
Has SDH Advanced Developments Group Ltd won public sector contracts?
Yes. SDH Advanced Developments Group Ltd has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Warwickshire Police.
What is the penalty if SDH Advanced Developments Group 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 SDH Advanced Developments Group 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.