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Planning Design London

Project Price Estimator

Answer a few quick questions and we'll provide an estimated fee range for your project, along with everything that's included.

Property Project Site Your Details Estimate

Tell us about your property

This helps us give you a more accurate range and ensures we only show you relevant services.

What type of work are you planning?

Select all services that apply — we can price combined projects.

Single Storey Rear Extension Expand ground floor living space towards the rear of your property
Double Storey Rear Extension Expand both ground and upper floors to the rear
Single Storey Side Extension Extend horizontally to gain extra living space or a new room
Double Storey Side Extension Add two floors vertically without sacrificing garden space
Wraparound Extension Combine side and rear extensions for maximum open-plan living
Garage Conversion Transform underutilised garage space into functional living areas
Loft Conversion Convert unused attic space into a bedroom, office or retreat
Dropped Kerb Enable off-street parking with a compliant vehicle access point

A couple of site questions

These can affect the complexity and cost of your application.

Properties in Conservation Areas often require more detailed drawings and a heritage statement, which can add time and cost to your application. We factor this in to give you a realistic estimate.
If you're building within 3 metres of a public sewer, you'll need a Thames Water Build Over Agreement. We handle this process for you — the drawings and application are included in our fee.

Where shall we send your estimate?

We'll email you a full summary and a member of our team will be in touch to discuss your project.

Your Estimated Fee

What's included

    *Prices are indicative estimates based on the information provided. Final fees are confirmed following a free consultation with our team. Prices are subject to VAT where applicable.

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