1. Companies
  2. Civil engineering
  3. St Ives
  4. Underwild Design & Development Ltd

Underwild Design & Development Ltd

ActiveTotal exemption (full) accountsCivil engineeringSt Ives
Company number
05175712
Incorporated
9 Jul 200422 years trading
Registered office
The Old School, The Stennack, St Ives, Cornwall, TR26 1QU
Nature of business
Construction of other civil engineering projects n.e.c.
Accounts due in
199 days
30 Apr 2027
Net assets
£871K▲
+38.2% on the year before
Cash at bank
£63▼
At 31 Jul 2025
Employees
4
Average during the year
From the Companies House register, 1 Oct 2026

Underwild Design & Development Ltd is a 22-year-old private limited company registered in St Ives, company number 05175712, one of 7 civil engineering contractors in St Ives. 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.

Accounts due
30 Apr 2027
in 199 days
For the period to 31 Jul 2026
CT600 due
31 Jul 2027
in 291 days
Period 1 Aug 2025 to 31 Jul 2026
Corporation tax payment
1 May 2027
in 200 days
9 months and 1 day after the period end
Confirmation statement
20 May 2027
in 219 days
Last made up to 6 May 2026

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 Underwild Design & Development Ltd

Or 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 £241K (+38.2%) on the year before, to £871K.
  • Net assets rose in 9 of 9 year-on-year comparisons on record.
  • Current assets of £1.1M against £840K owed within a year: 1.4 times cover.
  • 4 employees on average, up from 3 the year before.
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£500K31 July 2016: net assets £218K£218K201631 July 2017: net assets £228K£228K201731 July 2018: net assets £240K£240K201831 July 2019: net assets £277K£277K201931 July 2020: net assets £329K£329K202031 July 2021: net assets £397K£397K202131 July 2022: net assets £483K£483K202231 July 2023: net assets £578K£578K202331 July 2024: net assets £630K£630K202431 July 2025: net assets £871K£871K2025
Net assets at each year end, 2016 to 2025£0£500K31 July 2016: net assets £218K£218K'1631 July 2017: net assets £228K£228K'1731 July 2018: net assets £240K£240K'1831 July 2019: net assets £277K£277K'1931 July 2020: net assets £329K£329K'2031 July 2021: net assets £397K£397K'2131 July 2022: net assets £483K£483K'2231 July 2023: net assets £578K£578K'2331 July 2024: net assets £630K£630K'2431 July 2025: net assets £871K£871K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Jul 2025£871K£63£1.1M£840K4
31 Jul 2024£630K£157£995K£1.4M3
31 Jul 2023£578K£523£793K£742K10
31 Jul 2022£483K£8£1.3M£688K9
31 Jul 2021£397K£576£1.1M£524K4
31 Jul 2020£329K£642£2.1M£1.6M3
31 Jul 2019£277K£1,146£1.8M£1.4M4
31 Jul 2018£240K£972£1.5M£506K4
31 Jul 2017£228K£17K£1.1M£134K6
31 Jul 2016£218K£3,819£398K£227K

Who runs and owns Underwild Design & Development Ltd

From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.

Officer

NameRoleAppointed
D*** P***DirectorAug 2004
5 former officers
NameRoleAppointedLeft
A*** P***SecretaryAug 2004Jan 2016
Form 10 Secretaries Fd LtdCorporate Nominee SecretaryJul 2004Aug 2004
L*** G***DirectorNov 2006Aug 2007
A*** P***DirectorAug 2005Apr 2022
Form 10 Directors Fd LtdNominee director (company)Jul 2004Aug 2004

Person with significant control

Company · since Mar 2024
Bost Group Ltd
Owns 75% or more of the shares
Holds 75% or more of the votes
Can appoint and remove directors

Charges (secured borrowing)

2 of 7 registered charges are outstanding. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.

LenderStatusRegistered
Dudley Taylor LimitedOutstandingApr 2026
HSBC Bank PLCOutstandingOct 2006
Tab London LimitedSatisfied Apr 2026Oct 2024
Tab London LimitedSatisfied Apr 2026Oct 2024
Downing LLPSatisfied Mar 2026Nov 2022
Folk Nominee LimitedSatisfied Nov 2022Apr 2017
National Westminster Bank PLCSatisfied Oct 2022Mar 2007

Where Underwild Design & Development Ltd is registered

Underwild Design & Development Ltd's registered office on a map of the UK

The registered office is in St Ives (TR26), in the Cornwall local authority area, South West. Show TR26 1QU on a map.

Other trade companies in TR26

Shared registered office

38 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.

What happens if Underwild Design & Development 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 HouseAccounts deliveredPenalty
Up to 1 month late1 May 2027 to 31 May 2027£150
1 to 3 months late1 Jun 2027 to 31 Jul 2027£375
3 to 6 months late1 Aug 2027 to 31 Oct 2027£750
More than 6 months lateFrom 1 Nov 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Aug 2027£200
3 months late31 Oct 2027another £200
6 months late31 Jan 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Jul 2028another 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
05175712
Status
Active
Company type
Private limited company
Incorporated
9 July 2004 (22 years ago)
Registered office
The Old School, The Stennack, St Ives, Cornwall, TR26 1QU
Nature of business
Construction of other civil engineering projects n.e.c. (SIC 42990)
Year end
31 July (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 July 2025
Last confirmation statement
6 May 2026
Charges (mortgages)
2 outstanding of 7 registered
Previous names
Underwild Ltd (until 14 Dec 2006)

Filing notes for civil engineering contractors

Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.

Similar companies in St Ives

Other active civil engineering contractors registered in St Ives.

All civil engineering contractors in St Ives · All trades in St Ives · Civil engineering across the UK

Frequently asked questions

When are Underwild Design & Development Ltd's accounts due?

Underwild Design & Development Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.

When is Underwild Design & Development 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 Underwild Design & Development Ltd still trading?

Underwild Design & Development 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 Underwild Design & Development Ltd do?

Underwild Design & Development Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).

How old is Underwild Design & Development Ltd?

Underwild Design & Development Ltd was incorporated on 9 July 2004, 22 years ago.

Who runs Underwild Design & Development Ltd?

Underwild Design & Development Ltd has 1 active director, the longest-serving appointed in Aug 2004. Their names and service addresses are on the Companies House register.

Who owns Underwild Design & Development Ltd?

One person or company has significant control of Underwild Design & Development Ltd: Bost Group Ltd (owns 75% or more of the shares).

What is the penalty if Underwild Design & Development 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 Underwild Design & Development Ltd on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

File accounts + CT600File now£49Let's talk