Building with hemp lime course

Saturday 1 - Sunday 2 June 2019
This two-day course runs from 9.00am to 5.30pm in Stanmer Park, Brighton.

The course provides an introduction to the theory and practice of building with hemp lime, also known as hempcrete, including how to use it in the repair and upgrading of old buildings.

Who is the Building with hemp lime course for?

This course is open to anyone aged 16 or over. It is suitable for anyone interested in learning about hempcrete construction, whether they are planning their own project as a self-builder, architect or contractor, or just wanting to gain practical experience of the different ways of using this material. No prior knowledge is assumed, so the course is suitable for complete beginners as well as those with some building experience.

Read a review of the June 2018 course on Grow Street Journal: The sustainable benefits of building with hemp

VideoWatch Alex's talk on building with hempcrete at Green Architecture Day

Learning methods and outcomes

The course is spread over two days with a mixture of practical and theory sessions, reflecting the fact that, to use hempcrete successfully, builders need to have a proper understanding of the materials as well as good practical skills. There will be time for questions at the end of the day, but they are always welcome as we go along. All equipment is provided for practical sessions. Course participants who complete the entire course will receive a certificate, which will be sent via email after the course.

Learning outcomes

By the end of the course, participants will:

  • have learnt a little about the hempcrete building industry in the UK today
  • have a basic understanding of the key theoretical and practical issues to consider when building with hempcrete, in both new-build and restoration.
  • know the issues involved when choosing a hempcrete binder
  • have a good understanding of the basic method of hempcrete building, including the important dos and don'ts
  • have gained practical experience of:
    • building a section of new build hempcrete wall
    • applying finishes to hempcrete
    • insulating with hempcrete in a historic/traditional building context

Course tutor(s)

The course will be led by Alex Sparrow, co-director of Hemp-Lime Construct, a UK company specialising in the use of hempcrete alongside other natural building materials. Alex has been building with hempcrete since 2008 and provides consultancy and training to other builders, home owners and architects, as well as regularly speaking about the material at public events and writing on the subject. Alex is a co-author of the definitive guide to using this innovative, better-than-zero-carbon building material, The Hempcrete Book: Designing and building with hemp-lime (October 2014).


Stanmer Park (near University of Sussex)
South East England

Get directions to Stanmer Park.

If you intend to book accommodation, please check availability before booking a place, as accommodation in Brighton can be hard to find, especially over the summer months.

Get details on local accommodation and Brighton Permaculture Trust supporters who can provide accommodation in their homes.

Recommended reading

No prior reading is required, but Hemp-Lime Construct has put together this list of resources online:


Fees include tuition, handouts and refreshments.

  • £275 - Sponsored/organisation rate
  • £275 - Individual income more than 25k/yr
  • £235 - Individual income 18-25k/yr
  • £195 - Individual income less than 18k/yr
  • £77.50 - Individual, concessionary rate (check eligibility)*

* Concessionary places are limited. If places are not available check back two weeks before the course/event as more may be available then.

We endeavour to make our courses and events affordable to all. Unfortunately, we do not receive any external funding for most of these and rely on large amounts of voluntary input.

See the cancellations and refunds policy.

Booking the Building with hemp lime course

Booking is essential, as most of our courses/events are fully booked weeks in advance. However, if places are still available, then bookings can be made until midday the day before the course/event. A place is not secured until we have received the requested payment.

Please do not book unless you are able to pay for your place.

Paying for your place

Please read this section carefully.

When you complete the booking process, you will receive a confirmation email from us. If you haven't received that email within the next few hours, please contact us immediately, as this email contains vital information regarding your booking.

You can pay when you book your place using a credit/debit card or PayPal, or you can tick the 'Pay later' box (in the Event Fee section), which gives you the option to pay by BACS or send us a cheque after you have booked. If you choose to pay later, you will have 7 days to pay for your place. Bookings that remain unpaid on our system for longer than that will expire. You will receive notification of this expiration by email. If you then decide you want to come, you will need to contact us to see if there is a still a place available for you.

If you are booking within two weeks of the course, or the course is nearly full, you will not have the option to pay later. Instead, you will need to pay immediately at the point of booking using a credit card or PayPal.

Be certain that you understand ALL the information on this page, then:


Book the 1-2 June 2019 course


  • Oraya
    "Brilliant all round."

    Oraya Rogers

  • Derek
    "Great value for money if you intend to understand the design, construction and maintenance of buildings constructed in hempcrete. "

    Derek O'Connor

  • Frances
    "Alex is an extremely good tutor - he knows exactly what he is talking about and is passionate about his subject."

    Frances Osborn

  • Gerry
    "Honestly you got the whole thing just right. Locations so apposite for those interested in sustainable planet/housing, course social dynamic nice and easy, content mix of hands-on and tutorial also just right. Well done."

    Gerry Cavander

  • James
    "Really brilliant, inspiring, comprehensive and friendly course."


  • Mike
    "Thoroughly enjoyable experience."


  • Brendan
    "A fabulous location! Friendly, open helpful and informative. Very good."

    Brendan Catney

  • Phil
    "As a builder I found the course both informative, fun and full of the kind of information that only someone with passion for his work can impart."

    Phil Lockyer

  • Alexis
    "Thank you to all involved for their hospitality and kindness. It was a truly memorable experience."


  • Darren
    "Loved the Earthship. Looking forward to coming back."

    Darren Brock

  • Scott
    "Alex's teaching was first-class, learnt more practical & usable information about the particular method of construction over the two days the course ran than I did about multiple building systems in 2 years of architecture school.

    Scott McAulay

  • Vernon
    "Another cracking course!"

    Vernon Lindon

  • Arnold
    "I have been on many different training courses over the past 20 years, but this one is no doubt one of the best! Beautiful venue and surroundings, as well as the people involved. It is like a short holiday break where you can learn new skills!"

    Arnold Sulcas

Contact us

For further information or if you have problems with your registration, please contact us.

The constituents of hempcrete; hemp shiv, lime binder and water Freshly cast hempcrete wall showing plinth A new build hempcrete house under construction