Free calculators
Irish construction & planning calculators
Five free calculators for Irish construction and planning: build cost per square metre, stamp duty, VAT at 13.5% and 23%, planning application fees and Section 48 development contributions. No account needed.
Working out the rules as well as the numbers? The homeowner planning guides cover extensions, garden rooms, attic conversions, solar and retention - including the exemption changes commencing 27 July 2026.
The numbers behind the numbers: every live Irish planning application and commencement notice, filterable by county and trade.
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