Extension Builder Cost in Reigate

Extension building costs in Reigate vary significantly based on size, design complexity, materials and whether structural work is required. As a premium South East location, Reigate typically sees costs 25-35% higher than the national average due to strong demand, skilled labour availability and material costs. BizHub365 connects homeowners with experienced local extension builders who provide transparent quotes and manage projects efficiently from initial concept to completion.

Extension Builder Prices in Reigate

Service	Typical Cost	Unit
Single-storey rear extension (4m x 3m)	£28000 – £42000	per project
Double-storey extension (4m x 3m)	£55000 – £85000	per project
Loft conversion (30-40m²)	£35000 – £60000	per project
Garage conversion to living space	£18000 – £35000	per project
Structural steelwork installation	£3000 – £8000	per installation
Building regulations approval & inspection	£800 – £1500	per project
Project management & site supervision	£150 – £250	per day

Prices are indicative averages for Reigate. Actual quotes will vary based on job specifics.

What Affects the Cost?

Reigate extension costs depend on several key factors: plot size and access restrictions on many period properties, foundation depth requirements for ground stability, architectural style matching (Victorian/Edwardian homes require period-appropriate design), listed building restrictions in some areas, and seasonal weather impacts on construction timelines. Material quality, whether existing utilities need relocating, and the need for underpinning on older properties also significantly influence final pricing.

Money-Saving Tips

Obtain multiple quotes from builders experienced in Reigate's specific housing stock. Consider phasing projects (build shell first, fit interior later) to spread costs. Plan extensions to align with seasonal work windows and avoid winter delays. Use locally-sourced materials where possible, and ensure Building Regulations approval early to avoid expensive rework.

Frequently Asked Questions

What's typically included in an extension builder quote?

A comprehensive quote should include structural design, foundations, brickwork, roof, windows/doors, internal walls, electrics, plumbing, plastering, flooring, Building Regulations approval costs, and project management. Always confirm what's excluded (decorating, fitted kitchens, external works) before agreeing.

How long does a typical single-storey extension take in Reigate?

A 4m x 3m single-storey extension usually takes 12-16 weeks from start to completion, depending on weather, ground conditions, and whether existing utilities need moving. Winter weather can add 4-6 weeks.

Do I need planning permission for an extension in Reigate?

Single-storey rear extensions up to 3m deep (or half garden depth) may be permitted development. Double-storeys, side extensions, and listed buildings typically need planning permission. Building Regulations approval is always required. Your builder should guide you through this.

What's the cost difference between a single and double-storey extension?

A double-storey extension typically costs 1.8-2.2x more than a single-storey, due to additional structural work, roof complexity, extra flooring, and doubled wall/window costs. The per-square-metre cost is often lower for double-storey due to economies of scale.

Get this pricing guide emailed to you

We'll also send you money-saving tips for hiring a extension builder in Reigate.

Need a Local Reigate Extension Builder?

Join BizHub365 to connect with vetted extension builders in Reigate. Manage quotes, timelines and payments in one place. Start your project with confidence—sign up free today.

Are you a Extension Builder?

Get listed in Reigate

Appear on this page and reach customers searching for extension builder costs in Reigate.

Claim Your Listing

Find Extension Builders in Reigate

Browse extension builder businesses near Reigate, compare reviews, and get quotes.

Browse Local Extension Builders

How Much Does an Extension Builder Cost in Reigate?