TAKE CONTROL OF YOUR PROJECT!
We offer a range of packages to suit all individual requirements & budgets, ranging from groundworks only to complete builds!
We offer a range of packages to suit all individual requirements & budgets, ranging from groundworks only to complete builds!
P.T BARNUM
A headline in the Guardian newspaper published August 2025 read "Britain's extension dream is dead"... we don't accept this! We firmly believe that, with a slightly different approach, we can continue to thrive in the face of rising costs & economic uncertainty! When you self build, you save BIG!

We offer a range of fully managed services for your build, giving you the flexibility to decide how much or as little you would like us to do to suit your individual needs & budget & here's the best part... we can get it to wind & watertight stage in as little as 3 weeks!
We offer a fully managed, comprehensive groundwork package for your extension including -
We will liase with building control for visits & provide photos etc to ensure compliance & local authority sign off.
On completion of this stage, the foundation will be ready for you or your chosen follow on contractor to fit wall plates directly on to our sub structure & erect floor joists/timber kits.
We would generally complete this stage in 1 - 2 weeks & prices for a single story 20m2 are around
£ 7,000 - £ 7,500 plus vat

We offer a fully managed, comprehensive groundwork & timber superstructure package including complete groundwork package as above PLUS -
Again we will liase with building control for visits & provide photos etc to ensure compliance & local authority sign off.
On completion of this stage, the build will be ready for you or your chosen follow on contractors to fit roof covering, windows & cladding as well as plumbing & electrical before plasterboarding.
We would generally complete this stage in 2- 4 weeks & prices for a single story 20m2 are around
£ 15,000 - £ 17,000 plus vat

We offer a fully managed, comprehensive building envelope package including complete groundwork & superstructure package as above PLUS -
Again we will liase with building control for visits & provide photos etc to ensure compliance & local authority sign off.
On completion of this stage, the exterior envelope will be complete & will be ready for you or your chosen follow on contractors to carry out plumbing & electrical before plasterboarding, plastering & decoration.
We would generally complete this stage in 4- 8 weeks & prices for a single story 20m2 are around
£ 25,000 - £ 28,000 plus vat

We offer a fully managed, comprehensive building envelope & structural opening package including complete building envelope package as above PLUS -
Again we will liase with building control for visits & provide photos etc to ensure compliance & local authority sign off.
On completion of this stage, the exterior envelope will be complete as well as internal structural alterations & will be ready for you or your chosen follow on contractors to carry out plumbing & electrical before plasterboarding, plastering & decoration.
We would generally complete this stage in 4- 9 weeks & prices for a single story 20m2 are around
£ 26,000 - £ 32,000 plus vat

We offer a fully managed, comprehensive complete build package including complete building envelope package & structural openings as above PLUS -
Again we will liase with building control for visits & provide photos etc to ensure compliance & local authority sign off.
On completion of this stage, the exterior envelope will be complete as well as internal structural alterations & will be ready for you or your chosen follow on contractors to carry out any internal fit out, flooring & decoration.
We would generally complete this stage in 8 - 12 weeks & prices for a single story 20m2 are around
£ 30,000 - £ 40,000 plus vat

Contact us today to find out how we can help you create your dream space, variations on all above packages are available. We are extremely flexible & can take on as much or as little of the project to ensure we meet your individual requirements & budget.
Our priority is to ensure your project is a success!
Phase 3, Unit 7, Lloyd Street, Rutherglen, Glasgow, G73 1NP
T - 07304 110 714
Copyright © 2020 A - All Rights Reserved.
hello@selfbuildextensions.co.uk
We use cookies to analyze website traffic and optimize your website experience. By accepting our use of cookies, your data will be aggregated with all other user data.