Saved guides
Articles you have bookmarked for later.
- Do I Need Planning Permission?
- Permitted Development Explained
- Building Regulations Explained
Preview — this is an example project shown with sample data. Saving your own project arrives with BuildGuide accounts.
My project
Rear Kitchen Extension
- Property type
- 1930s semi-detached house
- Project type
- Single storey rear extension
- Current stage
- Planning Permission
- Location
- Guildford, Surrey
Overall progress21%
Progress roadmap
The major stages of a typical home project, from first research to sign-off.
Initial Research
CompleteFeasibility checked and rough budget set.
Planning Permission
In progressDeciding between permitted development and a full application.
Building Regulations
Not startedFull plans or building notice submitted to a control body.
Design
Not startedDetailed drawings and structural calculations finalised.
Builder Selection
Not startedQuotes compared, references checked, contract agreed.
Construction
Not startedWork on site, inspections and payment stages.
Completion
Not startedSign-off, certificates and snagging list closed out.
Recommended next step· Planning Permission
Confirm whether your extension falls under permitted development
You are at the Planning Permission stage. Checking permitted development first can save eight weeks and a full application fee — and if it qualifies, a lawful development certificate gives you written proof for future buyers.
Run the feasibility checkerUpcoming tasks
The approvals and appointments to line up next. Tick them off as you go.
My saved resources
Guides, tools, Mason conversations and Project Packs kept with your project.
Saved tools
Checkers and calculators you have used.
- Extension Feasibility Checker
- Project Checker results
Mason conversations
Questions you asked Mason, kept in one place.
- Do I need a party wall notice?
- How long does approval take?
Project Packs
Downloadable packs saved to your project.
- House Extension Project Pack
Coming with BuildGuide Pro
Preview of the tools that will unlock once accounts and Pro are available.
Budget Tracker
Track quotes, payments and contingency against your build budget.
Available with BuildGuide Pro
AI Document Review
Upload quotes and contracts and get plain-English flags on risky terms.
Available with BuildGuide Pro
Personal Timeline
A dated plan for your project with reminders for every approval.
Available with BuildGuide Pro
Project Documents
One secure place for drawings, certificates and correspondence.
Available with BuildGuide Pro
Mason Pro
Unlimited, project-aware answers from Mason with full history.
Available with BuildGuide Pro