Planning Permission Services in Swansea & South Wales

Expert Planning Applications, Architectural Drawings, Lawful Development Certificates & Full Planning Consultancy

Securing planning permission is a vital step in almost every type of development — from extensions and loft conversions to HMOs, commercial changes of use, and new builds. At Complete CAD & Structural Solutions Ltd (CCS), we prepare professional planning applications, drawings, and planning statements for homeowners, landlords, developers and businesses across Swansea, Neath, Port Talbot, Llanelli, Bridgend, Cardiff and the wider South Wales region.

We handle every stage of the planning process, ensuring your application is compliant, accurate, and designed to be approved. Get in touch for planning permission help and guidance from us.

Our expertise includes:

  • Full Planning Permission Applications
  • Householder Planning Applications
  • Lawful Development Certificates (LDCs)
  • HMO Planning (C4 and Sui Generis)
  • Change of Use Applications
  • Prior Approval Applications
  • Retrospective Planning Applications
  • Listed Building Consent
  • Conservation Area Consent
  • Planning Appeals
  • Pre‑App Submissions
  • SAB / SuDS Guidance
  • Welsh Water Build‑Over Agreements
  • Coal Mining Risk Screening
  • Highways & Drainage Consultations

WHY PROFESSIONAL PLANNING SUPPORT MATTERS

Planning permission ensures your development:

  • Complies with local and national planning policy
  • Protects neighbour amenity and privacy
  • Satisfies highways, drainage and ecology requirements
  • Avoids enforcement notices or legal issues
  • Proceeds smoothly without unnecessary delays

Applications submitted with incorrect or incomplete drawings are far more likely to be refused. Our well‑prepared submissions maximise your chances of success.

OUR PLANNING PERMISSION SERVICE

Measured Survey
A full measured survey is carried out to record dimensions, levels, openings and existing structural conditions.

Architectural Plans
We create:

  • Existing & proposed floor plans
  • Existing & proposed elevations
  • Roof plans
  • Sections
  • Site location plan (1:1250)
  • Block plan (1:500)
  • Street scene and context drawings

Planning Statements
We produce detailed planning statements addressing:

  • Local Development Plan (LDP) policies
  • National planning guidance
  • Access, scale and design considerations
  • Parking, highways and amenity impacts

Lawful Development Certificates (LDCs)
If your proposal falls under Permitted Development, an LDC proves the work is lawful — essential when selling the property.

Change of Use Applications
We handle HMO, commercial, mixed‑use and residential change‑of‑use cases.

Retrospective Applications
For developments already constructed, we regularise the work through a retrospective planning application.

Specialist Approvals
We coordinate:

  • Listed buildings
  • Conservation areas
  • Welsh Water approvals
  • SAB/SuDS requirements in Wales
  • Coal mining assessments
  • Gas and utility consultations
  • Highways statements

WHEN PLANNING PERMISSION IS REQUIRED

Planning permission is typically required for:

  • Extensions exceeding Permitted Development limits
  • Two‑storey extensions
  • Rear or side extensions on restricted plots
  • Loft conversions with front dormers
  • Converting garages to separate dwellings
  • Annexes or self‑contained units
  • Change of use (e.g., C3 → C4 HMO)
  • Commercial building alterations
  • New build developments
  • Work to listed buildings or in conservation areas

We advise on the correct planning route during your consultation.

SUDS / SAB REQUIREMENTS (WALES)

Any development creating 100m² or more of new hard surface requires SAB (SuDS) approval in Wales.

We support:

  • Surface water drainage strategies
  • Consultant coordination
  • Percolation testing
  • SAB application guidance

Including SuDS design strengthens your planning application and helps avoid delays.

  • Submission to the Council
    We complete the paperwork, upload drawings and act as your planning agent.

  • Management & Communication
    We handle all discussions with the planning officer, including amendments.

  • Approval
    Once approved, we assist with Building Regulations and structural calculations.

OUR PROCESS

  • Consultation & Feasibility
    We assess your goals, property constraints and planning requirements.

  • Measured Survey
    We collect accurate measurements for all drawings.

  • Architectural Design
    We prepare design options and finalised drawings.

  • Supporting Documents
    Planning statements, design & access statements, and policy justification.

Areas We Cover

  • Swansea
  • Neath
  • Port Talbot
  • Llanelli
  • Bridgend
  • Cardiff
  • Vale of Glamorgan
  • RCT
  • Merthyr
  • Carmarthen

WHY CHOOSE CCS?

  • Over 200+ successful planning approvals
  • Strong expertise across South Wales Local Authorities
  • Structural engineer + architectural designer service
  • Fast, clear and accurate drawing packages
  • Comprehensive planning statements
  • High approval rate on first submissions
  • Full management of your application
  • Fixed pricing with no hidden fees

FREQUENTLY ASKED QUESTIONS

How long does planning permission take?
Typically, 8 weeks from validation, depending on the council.

What if my application is refused?
We can prepare an appeal or revised resubmission.

Do I need an LDC?
Yes, if using Permitted Development, an LDC protects you when selling or refinancing.

Do HMOs need planning permission?
Properties over 6 residents always require planning; smaller HMOs depend on local policies.

Can CCS act as my planning agent?
Yes, we manage the entire application on your behalf.

Contact Complete CAD & Structural Solutions Limited

Get in touch with our team today if you are looking for planning permission guidance.