VAT on construction work is one of the most misunderstood areas of the UK tax system — and the consequences of getting it wrong can be significant. Here is a practical guide to the VAT rules that affect most residential building projects.
The standard rate of VAT (20%) applies to most building work on existing properties. Extensions, renovations, loft conversions, and general repair and maintenance are all subject to 20% VAT. This is the rate that applies to the majority of our projects.
New-build dwellings are zero-rated for VAT. If your project involves the construction of a completely new dwelling — including a new house on a greenfield site, a replacement dwelling (where the old one is demolished), or the conversion of a non-residential building into a new dwelling — the VAT rate is 0%. This is a significant saving: on a £500,000 new build, the difference between zero-rated and standard-rated work is £100,000.
Conversions of non-residential buildings to residential use qualify for the reduced rate of 5% VAT. This includes barn conversions, office-to-residential conversions, and church conversions — provided the building has not been used as a dwelling in the preceding 10 years. Our chapel conversion in Rayleigh and grain store conversion in Writtle both benefited from this reduced rate.
Renovations of dwellings that have been empty for two years or more also qualify for the 5% reduced rate. The property must have been continuously unoccupied for at least two years and not used for any purpose during that period. Evidence of vacancy (council tax records, utility disconnection) is essential.
Listed building repairs are subject to standard-rate VAT — the zero-rating that previously applied to approved alterations to listed buildings was withdrawn in 2012. This remains a sore point for heritage property owners and conservation bodies, but the law is clear.
We provide clear VAT guidance at quotation stage and work closely with our accountant to ensure the correct rate is applied. For projects that span multiple VAT rates (for example, a new build with associated landscaping), we apportion the costs carefully and transparently.