Extension Builder Cost in Shaftesbury

Building an extension is a significant investment for any Shaftesbury homeowner. Costs vary widely depending on the type of extension, whether you need planning permission, material quality, and ground conditions. A single-storey extension might cost £15,000–£35,000, whilst two-storey extensions often exceed £50,000. Labour availability and local building regulations compliance also influence final pricing. BizHub365 connects you with trusted, local extension builders in Shaftesbury who provide transparent quotes and manage projects from design to completion.

Extension Builder Prices in Shaftesbury

Service	Typical Cost	Unit
Single-storey extension (basic, 4×4m)	£15000 – £25000	per job
Single-storey extension (quality finish, 5×5m)	£28000 – £40000	per job
Two-storey extension (standard specification)	£50000 – £75000	per job
Timber-frame extension build	£20000 – £35000	per job
Brick and block extension (premium quality)	£32000 – £55000	per job
Building regulations approval & inspections	£600 – £1200	per project
Structural engineer survey & design	£800 – £1500	per project

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

What Affects the Cost?

Key pricing factors include extension size (measured in square metres), build specification (basic to premium finishes), planning permission requirements, and ground conditions. Shaftesbury's local authority building regulations and conservation area restrictions (if applicable) may increase costs. Material choices—brick, timber-frame, or rendered block—significantly impact price. Labour costs reflect skilled trades availability in the South West, and seasonal weather can affect project timescales. Existing property access and utility relocations also influence overall project cost.

Money-Saving Tips

Start with detailed planning and drawings to avoid costly revisions. Obtain multiple quotes from local extension builders to compare specifications and timescales. Consider phasing the project or using standard designs rather than bespoke architectural plans. Ensure all necessary planning and building regulation approvals are obtained upfront to prevent expensive delays or remedial work.

Frequently Asked Questions

Do I need planning permission for an extension in Shaftesbury?

Most single-storey extensions fall within permitted development rights if they don't exceed certain size limits and setbacks. However, conservation areas, listed buildings, and larger projects typically require planning permission. A local extension builder can advise whether your project needs formal approval—this usually adds 8–12 weeks to timescales.

What's included in a typical extension builder quote?

A comprehensive quote should cover structural design, foundations, walls, roof, windows, doors, internal finishing (plasterboard, flooring, decoration), and building regulations compliance. Some quotes may exclude external landscaping, internal fit-out, or electrical/plumbing work—clarify all inclusions before accepting.

How long does a typical extension build take?

A single-storey extension usually takes 12–16 weeks from start to finish, including planning and building control phases. Two-storey extensions typically take 20–28 weeks. Weather, ground conditions, and unforeseen structural issues can extend timescales. Always agree realistic project timescales in writing with your builder.

What's the difference between a timber-frame and brick extension?

Timber-frame extensions are quicker to build and often less expensive (£20,000–£35,000), but require external cladding or render. Brick extensions (£32,000–£55,000) offer traditional aesthetics, better thermal mass, and durability. Both must comply with Building Regulations; choice depends on budget, aesthetic preference, and existing property style.

Get this pricing guide emailed to you

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

Looking for skilled extension builders in Shaftesbury?

BizHub365 connects you with experienced, vetted extension builders across Shaftesbury. Receive transparent quotes, manage projects online, and build with confidence. Join hundreds of South West homeowners trusting BizHub365 today.

Are you a Extension Builder?

Get listed in Shaftesbury

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

Claim Your Listing

Find Extension Builders in Shaftesbury

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

Browse Local Extension Builders

How Much Does an Extension Builder Cost in Shaftesbury?