Environmental Design Solutions Limited (EDSL) was formed in 1989 to commercially develop Tas Software. EDSL sells Tas software and consultancy services using Tas. EDSL believe that the mixing of development, consultancy and software support leads to a focused software product, with quality support available to end users.

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Training Courses

Attending a Tas training course counts towards the CIBSE CPD programme.

The training courses are all held at our Milton Keynes office and cost £250 + VAT per person per day. The courses run from 9.30am to 4.30pm. You can book a place on any of our training courses by phone (details available on the Contact page) or by using the Email Form and choosing category 'Training'.

All attendees are required to submit a signed and completed application form, as well as completing the pre-training work prior to the first attendance of the 3-day Tas Building Designer course - details are on the application form.

Before we can confirm your place on a training course, you must send us a purchase order for the total cost of the requested courses.

Please note: any rescheduling or cancellation of a confirmed training course placement on behalf of the attendee will still be charged at 50% if made less than 2 weeks prior to the course starting. You should inform EDSL of any changes to your attendance as soon as possible in order to avoid this late cancellation charge.


Tas Building Designer (3 days)

Part L2a 2006 and EPC (2 days)

Lumen Designer (1 day)

Mon 19th July - Wed 21st July Thu 22nd July - Fri 23rd July -
Mon 9th August - Wed 11th August Thu 12th August - Fri 13th August -
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