The flats are zero-rated on first sale if the mill was non-residential, so the developer recovers its VAT.[1] The conversion works carry 5% VAT.[1] Listed status adds no VAT relief for alterations. The mill is bought at non-residential SDLT rates[2], and the SPV pays corporation tax on its profit.[3]
Key facts
- The first sale, or a lease over 21 years, of a dwelling converted from a non-residential building is zero-rated when made by the person converting it.[1]
- Builders charge 5% VAT on work that converts a non-residential building into dwellings.[1]
- Approved alterations to listed buildings have been charged at 20% since 1 October 2012.[1]
- A building used as a dwelling in the 10 years before the sale is not non-residential for this relief.[1]
- Non-residential SDLT for 2026/27 is 0% up to £150,000, 2% to £250,000 and 5% above.[2]
Does listed status change the VAT on the works?
No. Before 1 October 2012, approved alterations to a protected building could be zero-rated. That relief was withdrawn, and all transitional zero-rating ended in September 2015. Approved alterations are now charged at 20%.[1]
A listed mill being turned into flats still gets help, but from a different rule. Work to convert a non-residential building into dwellings is charged at the reduced rate of 5%.[1] Your builder needs to be satisfied the work qualifies, so give them the planning and listed building consents early. Our post on the 5% reduced rate covers the wider reduced-rate rules.
How does the developer recover the VAT?
The SPV is the person converting. Its first sale of each flat, or a lease of more than 21 years, is zero-rated.[1][4] That lets it reclaim the VAT on the build, the fees and the selling costs.[5]
Two conditions do the heavy lifting. The mill must be non-residential. That means it has never been used as a dwelling, or has not been used as one in the 10 years before the sale.[1] And only the first grant qualifies. Later sales are normally exempt.[1] If you might keep some flats to let, take advice before you reclaim. Our retained units worked example shows how the position changes.
What SDLT does the SPV pay on the mill?
The mill is not a dwelling on the day of completion, so non-residential rates apply. For 2026/27 that is 0% on the first £150,000, 2% on the next £100,000 and 5% above £250,000.[2] On a £900,000 purchase the bill is £34,500.
If part of the mill was already a dwelling, such as a caretaker's flat, the purchase would be mixed-use. Mixed-use purchases use the same non-residential table.[2]
What if the seller has opted to tax the mill?
A seller that has opted to tax would normally charge VAT on the price. When you are buying a building to convert into dwellings, you can switch that off. You give the seller a certificate on form VAT1614D, and the seller must then treat the sale as exempt.[6]
Timing is everything. The certificate must reach the seller before the price is legally fixed, for example by exchange of contracts or signed heads of agreement.[6] Miss that, and the VAT is charged and you have to fund it. Our option to tax guide explains how the option works.
How is the profit taxed?
The SPV buys, converts and sells, so we treat this as a development trade. Its profit is charged to corporation tax. The main rate is 25% on profits over £250,000. The small profits rate of 19% applies at £50,000 or less, with marginal relief in between.[3]
Those limits are reduced where the company has associated companies.[3] A developer with four other active SPVs does not get a full £250,000 band in each one. Our post on associated companies shows the effect.
An SPV with no associated companies buys a vacant Grade II listed former cotton mill in East Lancashire for £900,000. It was last used as a warehouse and has never been lived in. All figures are invented.
Purchase price: £900,000. SDLT at non-residential rates: £34,500.[2]
Conversion works: £2,100,000, plus VAT at 5% of £105,000.[1]
Professional fees, including heritage and listed building consent work: £250,000, plus VAT of £50,000.
Finance costs: £180,000.
Selling costs: £60,000, plus VAT of £12,000.
Sales: 14 flats at an average of £285,000, so £3,990,000 in total, all zero-rated.[1]
The SPV reclaims all £167,000 of input VAT. Costs net of VAT are £3,524,500, which leaves a profit of £465,500. At the 25% main rate, corporation tax is £116,375.[3]
Now change one fact. Suppose two flats are made from a caretaker's house in the mill yard that was lived in six years ago. That space was used as a dwelling within the last 10 years, so those two sales cannot be zero-rated under the conversion rule.[1] The VAT on their share of the costs is at risk, and the margin on those units falls.
Listed mills across the North West make good conversions, but the VAT position is won or lost before exchange. Get the VAT1614D to the seller before the price is fixed.[6] Confirm in writing how every part of the building was used over the last 10 years.[1] Decide early whether any flats will be kept, because that changes the VAT. The listing itself adds cost and time, not VAT relief. Budget for it that way.
Common questions
Can work on a listed building still be zero-rated?
Not as an approved alteration. That zero rate was withdrawn from 1 October 2012, and transitional relief ended in September 2015.[1] A separate zero rate remains for the first sale of a substantially reconstructed protected building, but it has strict conditions. Take advice before you rely on it.
What counts as a non-residential building for this VAT relief?
One that has never been used as a dwelling, or has not been used as a dwelling or for a relevant residential purpose in the 10 years before the sale.[1] A mill, warehouse or office usually qualifies. A caretaker's flat inside it may not.
Does the builder charge 5% or 0% on a mill conversion?
5%, unless the work is for a relevant housing association. Conversion of a non-residential building into dwellings is reduced-rated.[1] The developer recovers that VAT when its first sales are zero-rated.
When must the VAT1614D be given to the seller?
Before the price is legally fixed, for example by exchange of contracts or signing heads of agreement.[6] If it arrives later, the seller is not required to exempt the sale.
Sources
- HMRC, Buildings and construction (VAT Notice 708). www.gov.uk/guidance/buildings-and-construction-vat-notice-708
- GOV.UK, SDLT rates for non-residential and mixed land and property. www.gov.uk/stamp-duty-land-tax/nonresidential-and-mixed-rates
- GOV.UK, Corporation Tax rates. www.gov.uk/corporation-tax-rates
- Value Added Tax Act 1994, Schedule 8, Group 5. www.legislation.gov.uk/ukpga/1994/23/schedule/8
- HMRC VAT Construction Manual, VCONST04100: zero-rating major interest grants after a non-residential conversion. www.gov.uk/hmrc-internal-manuals/vat-construction/vconst04100
- HMRC, Opting to tax land and buildings (VAT Notice 742A), paragraph 3.4. www.gov.uk/guidance/opting-to-tax-land-and-buildings-notice-742a
Kieran Holsgrove is a Director and Co-Founder of Grafene Accounting, the property tax specialist firm based in Liverpool. He advises property developers, investors and landlords across Merseyside, Greater Manchester, Lancashire and Cheshire on tax structuring, developer VAT, SDLT and the long-view decisions that compound over the life of a portfolio.
This article is general information, not personal tax advice, and tax rules change. Your own position depends on facts we cannot see from here. Please take advice before acting on anything above.