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Nicky & Harri
Free3 minutesNo obligationHow it works
Exclusive for the Sunday Morning Crew

Find out what’s really possible with your home

Sunday Morning Crew, this one’s just for you! As one of Nicky & Harri’s subscribers, you get an exclusive £50 off your Deep Dive with Dave: just £149 instead of £199. Start with your free renovation report (it takes about three minutes), then book your Deep Dive and get your project off to a flying start.

Nicky and Harri smiling in a garden in front of a renovated house with a glazed rear extension

Arkiplan have revolutionised the architect process. Our renovation project would not have been possible without Dave and his incredible team.

Nicky & Harri · Arkiplan clients
Nicky & HarriNew video every Sunday morning
4.7from 460+ homeowner reviews
20 yearsof UK renovation experience

Sunday Morning Crew members get

  • Free Renovation Report
  • £149 Deep Dive meeting(normally £199)
Likely build costA range shaped around your idea
Inside your report
Planning contextThe local flags worth knowing early
Inside your report
Potential valueWhat the finished space could add
Inside your report
One project, start to finish

From the house as we found it to the finished build.

Project 401788. Nicky and Harri filmed the whole build on their YouTube channel.

Watch this project start to finish
  1. Project 401788 as we found it
    As we found it
  2. Proposed floor plans sheet
    Our drawings
  3. Proposed 3D visual
    3D visual
  4. Project 401788 built and finished
    Built and finished
As featured in
Clarity before commitment

Three minutes now could prevent months of wasted time — and thousands in wasted money.

The expensive mistakes usually happen before the build begins. Your free report helps you spot them while the project is still easy to change.

Avoid the pain

What this helps you prevent

  • Build costs rising the moment builders start digging.
  • Planning enforcement making you change your extension—or tear it down.
  • A party-wall dispute with a neighbour bringing progress on site to a halt.
  • Applying for planning permission for a design that is far outside your budget.
  • Paying architects, engineers or surveyors before you know whether you need them.
Gain clarity

What you’ll know instead

  • Get clarity on what your renovation is likely to cost.
  • See how much value the finished renovation could add to your home.
  • Get an immediate view of whether planning permission looks realistic—and what could get in the way.
  • Create the extra space you need—or make your forever home finally work—without overspending.
Build my free report
Placeholder for a photo of Nicky & Harri with DavePlaceholder photo
Built from real projects

This isn’t a generic calculator with an Arkiplan logo on it.

I founded Arkiplan after seeing how often homeowners were expected to make six-figure decisions with almost no useful information. Over 20 years, I’ve designed and reviewed thousands of extensions, lofts and whole-home renovations across the UK.

I built this free tool to give you the useful first-pass thinking I wish every homeowner had before they committed to drawings, builders or a particular design.

Dave ChamberlainFounder & lead designer, Arkiplan
Renovation advice people actually use

More than 1,000,000 views on social media.

Straight answers on renovating, extending and buying property—without the jargon or the hard sell.

A selection of Dave's renovation advice videos
4.7 out of 5from more than 460 homeowner reviews
Free · about 3 minutes · no obligation

Before you spend a fortune on your home, spend three minutes getting clear.

Add your details, explore the report and see what deserves your attention before you make the expensive decisions.

Show me what’s possible