Understanding Loft Conversions
–
A collection of loft conversion detailing and design
NEW EDITION UPDATED IN LINE WITH LATEST BUILDING REGULATION UPDATES
What is included?
The Existing Building
- Roof type
- Party walls
- Chimneys
- Load bearing walls
- Foundations
New Structure
- Floors
- Roof structure
- Dormers and roof extensions
- Insulation
- Stairs
- Windows and doors
- Materials
Planning and Regulations
- Planning and permitted development
- Building regulations
- Fire safety
Construction Details
- General loft details
- Front dormer window details
- Rear dormer extension details
- Zinc standing seam details
- Faceted zinc dormer details
- Velux details
NEW TO THE 2ND EDITION
All the details have been updated in line with the new Building Regulations changes issued in June 2022.
Download over 40 2D CAD files and over 40 3D SketchUp models!
How this book will help you
- Gain a better understanding of how loft conversions work
- Improve your technical ability
- Save a huge amount of time searching for details
- Edit and develop the CAD files into your own detail library
- Explore the 3D SketchUp files to improve your understanding of loft conversions


Bundle 1
- (Book in pdf format)
- Over 40 2d detail images
- Over 40 3d detail images
Bundle 2
- (Book in pdf format)
- Over 40 2d detail images
- Over 40 3d detail images
- PLUS – All the 2D details featured in the book (in AutoCAD dwg format) for you to explore
Bundle 3
- (Book in pdf format)
- Over 40 2d detail images
- Over 40 3d detail images
- PLUS – All the 2D details featured in the book (in AutoCAD dwg format) for you to explore
- PLUS – All the detail SketchUp models (.skp) as seen in the book for you to explore
The Full Five Book Package
- Understanding Architectural Details – Residential in PDF format
- Understanding Architectural Details – Basements in PDF format
- Understanding Architectural Details – Commercial in PDF format
- Understanding Passivhaus 2nd Edition – in PDF format
- Details:Calculated – in PDF format
- Understanding Loft Conversions – in PDF format
- All the 2D details in CAD format as dwg files
- All the 3D details in SKP format for SketchUp
- All the Flixo files from Details:Calculated
- Plus UAD Commercial Wall Details bonus book and digital files
- UK construction standards and methods
- Details drawn in metric units
Who is it for?
students | graduates | professionals | tutors | professors



Hi, I’m Emma…
This is why I wrote the book
In the past I have spent many hours searching for details, trying to find an example of a detail so that I can understand the construction a bit better. I decided to try and make things a bit easier for people that were experiencing the same issues as me.
Now, after writing five successful construction books (Understanding Architectural Details Residential, Commercial, Basements and Residential Construction Details US Edition, Understanding Passivhaus), this book explores loft conversions.
The ever popular way of adding space and value to our homes, more people than ever are looking to convert their roof spaces into a habitable room. Whether to create a work from home office, or purely that much needed extra room, many architects are tasked with designing loft extensions at some point in their career.
I hope that this book will showcase some of the different options available, help with understanding and save plenty of time for anyone embarking on a loft design project.
The Understanding Architectural Details books are featured in

Exactly what you need
All I can say is Thank You for producing these books. Coming from New Zealand where residential work is predominately timber frame construction and having a break from Architectural work for about 10yrs, these books have been a life saver for me in terms of quickly getting up to speed on UK construction methods. Especially when producing building control and tender drawings.
Both books I have purchased ‘Understanding Architectural Details Residential’ and the ‘Understanding Loft Conversions’ have helped me immensely. Having the cad details for reference and a starting point to adapt to specific situations have been a great resource.