Free Tools

Glasgow Extension Tools — Cost, Planning & Warrant

Four interactive tools designed for Glasgow homeowners. Use them to scope your project before talking to a single builder.

Tool 01

Quote Funnel

Get matched with vetted Glasgow builders.

Step 1 of 617%

Pick the closest match — we'll refine later.

Tool 02

Realistic Glasgow per-m² rates.

Cost Calculator

Project type

Specification

Floor area20 m²

Conservation area (+15%) Tenement / flat (+20%)

Estimated cost range

£40,000 – £51,000

Includes labour, materials and standard fit-out. Excludes architect's fees, planning fees and building warrant.

Tool 03

Find out in 60 seconds.

Planning Permission Checker

Six quick questions — based on Scottish Permitted Development Rights.

Is your property a listed building?

Is it in a conservation area?

Is the property a flat or tenement?

Will the extension face a public road or be forward of the principal elevation?

Will the extension exceed 50% of the original garden / curtilage?

Will it be more than one storey?

Tool 04

Glasgow City Council 2025 fee bands.

Building Warrant Fee Calculator

Based on Glasgow City Council 2025 fee bands.

Estimated value of works£60,000

£5k£500k

Estimated warrant fee

£735

Excludes architect, structural engineer, and amendment fees.