Certificate of Lawfulness in Swanage — Permitted Development Proof

A legal document confirming your extension falls within Permitted Development rights. Protects you at resale — mortgage lenders and solicitors expect it.

£1,500· Drawings in 2 weeks, decision in 8 weeks
Fixed prices, no surprises
Local team in Poole
No lock-in, ever
Fast turnaround
Based in Poole since 2017

What's included

  • Existing and proposed floor plans
  • Elevation drawings
  • Site plan and block plan
  • PD compliance assessment
  • Council application and liaison

Certificate of Lawfulness in Swanage

A Certificate of Lawfulness (CLPUD) is a legal document confirming your extension falls within Permitted Development rights. It is not planning permission — it is proof that you don't need it. In Swanage, where Victorian seafront properties, 1930s bungalows with views, modern estates inland, and stone cottages in the Purbeck villages, this certificate protects you when you come to sell.

Why you need one

Mortgage lenders, solicitors, and buyers expect documentary proof that extensions were built legally. Without a certificate, a future buyer's solicitor may raise enquiries that delay or derail your sale. The £1,500 investment now can save months of stress later.

PD rules in Swanage

Dorset Council covers a large rural area with many villages in conservation areas and AONBs (Dorset AONB, Cranborne Chase AONB). Permitted Development rights may be restricted in these areas — always check before assuming PD applies. Swanage falls within the Dorset AONB and partly within the Jurassic Coast World Heritage Site buffer zone. Extensions in Purbeck villages often require local stone We assess your property against all PD conditions before applying — if your project doesn't qualify, we tell you upfront and recommend the planning application route instead.

What we submit

Existing and proposed floor plans, elevation drawings, a site plan, and a compliance statement demonstrating how the proposal meets every PD condition. We submit to Dorset Council and manage the process through to the certificate being issued.

Typical properties in Swanage

Swanage town centre — the High Street with characteristic Purbeck stone architecture

Swanage town centre — the High Street with characteristic Purbeck stone architecture

Fig. 2

Purbeck stone house with traditional local materials, typical of the Isle of Purbeck

Purbeck stone house with traditional local materials, typical of the Isle of Purbeck

Fig. 3

Lawfulness Cert questions in Swanage

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Structural Calculations

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Engineer-certified structural calculations for your extension or wall removal. Covers beam sizing, foundation design, and Building Regulations compliance.

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Technical construction detail drawings that satisfy Building Regulations. Covers insulation, drainage, structural details, and everything your builder and building control need.

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Floor Plans

from £250

Measured floor plans for Poole renovation, extension and structural alteration projects before pricing, engineering, planning or Building Control.

Ready to get started in Swanage?

Certificate of Lawfulness from £1,500. Fixed price, no obligation.

Every plan drawn by qualified drafters in Poole, Dorset

Serving homeowners across Poole, Bournemouth, Christchurch, Wimborne, Wareham, and the wider Dorset area.