Planning the build
Why build an extension?
Initial design sketches
On-line Building Regs
Meeting planners
 Meeting building control
 Planning the foundations
 Planning the floor slab
 Marking out the footings
 Damp proof course issues
 Possible drainage problems?

 Construction of the walls
 Proposed roof structure
Windows diary
 Window challenges
 Initial window plans
 Making the casements
 Making the frame
 Designing leaded lights
 Making leaded lights
 Assembling the window
 The little window

 The door frame
Demolition diary
 The demolition starts!
 The demolition continues
 Still more demolition

Foundations diary
 Foundation issues
 Drain issues
 Digging the foundations
 Rethinking foundations!
 Pouring the foundations

Floor slab diary
 Rethinking the slab!
 Floor vent extensions
 Preparing the slab #1
 Preparing the slab #2
 Pouring the slab

Walls diary
 Preparing to build walls
 Build up to the DPC
 Build the walls #1
 Build the walls #2
 The gas men cometh
 Build the walls #3
 Finishing the walls
Roof diary
 Roof structure build
 Tiling the roof
 Finishing the roof
 Finishing the gables
 Roof insulation

 Floor screed
 Shower room
 Shower room floors
 Shower room walls
 Utility room
 Utility room walls
 Utility room floor
 Finishing the windows

Project finished!
 Final inspection
 The certificate
 Final thoughts

 Twelve months on!
 Material costs
Sister sites
 House re-roof project
 Home gas usage data

 Stop paint flaking
 DIY secondary glazing


A photographic record of designing & building a house extension

Take a look at my re-roofing project!

February: When I was thinking about self-design and build of a small house extension to my house in the UK, even in the vastness of the Internet I could not find a web site that took me step-by-step through a complete build photographically. I thought that I would remedy that situation by documenting my build as it took place on a daily basis. I plan to undertake all the work myself - a real self-build project and I hope that you find it useful. Let me know if you do! email:

September: Well, the project is 100% finished and took a total of five months from start to finish. I'm exceedingly pleased with the result and I can say that I laid every brick, screwed every screw and even built all the windows.

Commendation award!


Rushmoor Borough Council ran a  Rushmoor Design Awards  competition 'to promote and improve the quality of our built and natural environment' in the borough. I'm pleased to announce that the extension won a commendation from the judges in the Best Conversion / Extension / Refurbishment category which keeps or adapts the original building, and complements the existing property.



Some of my visitors' comments

Disclaimer: I am not any any way involved in the building industry and therefore I am not an expert on the subject matter of this site. The way I go about things may not be the correct or even the best way of undertaking specific tasks. The consequence of this is that I do not recommend that you use the information on this site without consulting appropriate experts.