Permitted Development & Lawful Development Packs

Why Choose SMARTePLANS® for Your PD Project?

• Full PD compliance checks

• Accurate architectural drawings

• Lawful Development Certificate (LDC) preparation

• Fixed pricing with no hidden extras

• Full council submission

• Fast turnaround

• 100% digital workflow — no site visit needed

What’s Included in a PD / LDC Pack?

• Existing drawings

• Proposed drawings

• Elevations

• Roof plans

• Section drawings

• Site plan (OS‑based)

• Full PD compliance assessment

• LDC application form preparation

• Council submission

• Application monitoring until decision

PD Classes We Cover

• Class A — Extensions

• Class B — Loft conversions (rear dormers)

• Class C — Roof alterations

• Class E — Outbuildings & garden rooms

• Class G/H — Porches & chimneys

• Class AA — Additional storeys (where applicable)

Why a Lawful Development Certificate Matters

Even if your project is Permitted Development, councils strongly recommend obtaining an LDC because it:

• Provides legal proof your project is compliant

• Protects you during future property sales

• Prevents enforcement action

• Confirms measurements, volumes and design rules

• Ensures your builder follows the correct PD limits

An LDC is the only way to legally confirm PD rights.

Our PD Compliance Checks Cover:

• Height limits

• Volume calculations

• Roof slope rules

• Materials matching

• Boundary distances

• Conservation area restrictions

• Listed building curtilage

• Amenity and overlooking considerations

• Garden coverage limits

• Outbuilding placement rules

Our Process

1. Upload photos + measurements

2. We produce your PD‑compliant drawings

3. You approve the draft

4. We prepare your LDC application

5. We submit to your council

6. We manage the entire application