Dreaming
Links to inspiration galleries, house plans, and budget calculators.Read more
Planning
Resources on site assessment, permits, and architect/engineer directoriesRead more
Building
Step-by-step guides, supplier lists, and live Q&A forums.Read more
Completed
Case studies, “lessons learned” blogs, and warranty/insurance advice.Read more
- New house
- Extending or Renovating
Item 1
New Build
Projects
New Build
Advice zone
New Build
Journey
New Build
Cost Hub
New Build
Cost Calculators
New Build
House Plans
New Build
Extending or Renovating
Projects
Extend/Renovate
Advice zone
Extend/Renovate
Cost Hub
Extend/Renovate
Cost Calculators
Extend/Renovate
House Plans
Extend/Renovate
Inspiration
Extend/Renovate
Sponsored
Magazines
Ireland’s best-selling magazine for self-builds, extensions and renovations. Each quarterly issue is packed with expert tips, inspiration, trends, and the latest home products.
Find out moreevents
The Selfbuild Extend & Renovate Show is Ireland’s top event for building, extending or decorating. Held in all four regions, it’s the place to get ideas, advice and meet experts.
Find out moreCost Calculator Section
Surface the cost estimation tool as a primary resource.
-
An interactive calculator with dropdown menus for project type (new build, renovation, extension), square footage, and location.
-
Real-time outputs displaying average costs per m² (e.g., “€1,700+ for builder-finished projects”) and links to detailed cost guides
Our Experts / Contributors
Micah Jones
Architect
Pete Cole
Clerk of Works and Building Surveyor
Harrison Gardner
DIY self-build expert
Barry McCarron
Chairman of the Passive House Association of Ireland
Andrew Stanway
Project Manager
DJ Ramsdale
Builder and Cost Expert
Keith Kelliher
Quantity Surveyor
Anne Byrne
Garden Designer
Patrick Waterfield
Energy Assessor
Les O’Donnell
Structural Engineer and Architectural Technologist
Latest Projects & Advice
Privacy Policy
Effective Date: 31st March 2026 Welcome to selfbuildextendrenovate.co.uk (“we”, “our”,…
How to choose the right self-build plot for a sustainable home
Passivhaus designer Sean Ronnie Hill explains why choosing the right…
How to budget for your self-build: an expert’s guide to construction costs
Planning a self-build starts with getting the budget right. Jack…
Self-build budgeting: how to work backwards from a fixed mortgage
Self-build coach Giuliano Rapoz shares how he and his partner…
From unwanted auction plot to architect-designed Peckham self-build home
Bought at auction without planning permission, this Peckham self-build home…
Top 5 reasons your planning application could be denied
Here are the five most common planning application mistakes people…
The 4 hidden forces shaping every truly sustainable home
What really shapes a truly sustainable home? Passivhaus Designer Sean…
5 steps to avoid rogue builders
CIOB’s Linda Stevens offers straightforward advice on how to make…
Deep retrofit slashes energy use by 75 per cent in this 1930s London home
An EnerPHit-style deep retrofit transforms a 1930s London house, cutting…
Right to Build: what it means for self-builders in England
What is the Right to Build legislation and how does…
From unwanted auction plot to architect-designed Peckham self-build home
Bought at auction without planning permission, this Peckham self-build home was a major risk. Architect Percy Weston turned it into a compact three-bedroom family…
How to choose the right self-build plot for a sustainable home
Passivhaus designer Sean Ronnie Hill explains why choosing the right self-build plot starts with understanding the land, from ecology and orientation to access and…
How to budget for your self-build: an expert’s guide to construction costs
Planning a self-build starts with getting the budget right. Jack Hounseham of Appledown Projects, breaks down the main costs involved and shares his expert…
Self-build budgeting: how to work backwards from a fixed mortgage
Self-build coach Giuliano Rapoz shares how he and his partner Zara kept their self-build on track by budgeting carefully from the outset, from mortgage…
From unwanted auction plot to architect-designed Peckham self-build home
Bought at auction without planning permission, this Peckham self-build home was a major risk. Architect Percy Weston turned it into a compact three-bedroom family…
Selfbuild Magazines
Summer 2025
Spring 2025
Winter 2024
Autumn 2024
Summer 2024
Spring 2024
Winter 2023
Autumn 2023
Summer 2023
Spring 2023
