Window tax
The window tax was a property tax introduced in England in 1696 under the reign of King William III. It was designed as a means of generating revenue for the government while avoiding a formal income tax, and was highly unpopular at the time.
The tax was levied on the number of windows in a building. The rationale was that the number of windows correlated with the size and value of the property, and therefore with the wealth of its owner.
The tax had a fixed rate plus a variable rate based on the number of windows:
- Initially, houses with fewer than ten windows were exempt.
- Houses with ten to twenty windows were taxed at a certain rate.
- Houses with more than twenty windows were taxed at a higher rate again.
Over the years, the specifics of the tax changed several times. For example, the threshold for taxation and the rates were adjusted, and in 1766, houses with seven or more windows were taxed.
The window tax led to unintended consequences, such as homeowners bricking up windows to avoid the tax. This practice affected the architectural aesthetics of buildings and sometimes had adverse effects on the health and well-being of residents due to reduced ventilation and natural light.
The window tax remained in effect for more than a century, despite its unpopularity and the various negative consequences. It was finally repealed in 1851 and replaced by a tax on house value, known as the house duty.
The window tax is often cited as an example of how tax policy can influence architecture and living conditions. Many historical buildings in the UK still show evidence of windows that were bricked up to reduce tax liability.
[edit] Related articles on Designing Buildings
Featured articles and news
ECA, JIB and JTL back Fabian Society call to invest in skills for a stronger built environment workforce.
Women's Contributions to the Built Environment.
Calls for the delayed Circular Economy Strategy
Over 50 leading businesses, trade associations and professional bodies, including CIAT, and UKGBC sign open letter.
The future workforce: culture change and skill
Under the spotlight at UK Construction Week London.
A landmark moment for postmodern heritage.
A safe energy transition – ECA launches a new Charter
Practical policy actions to speed up low carbon adoption while maintaining installation safety and competency.
Frank Duffy: Researcher and Practitioner
Reflections on achievements and relevance to the wider research and practice communities.
The 2026 Compliance Landscape: Fire doors
Why 'Business as Usual' is a Liability.
Cutting construction carbon footprint by caring for soil
Is construction neglecting one of the planet’s most powerful carbon stores and one of our greatest natural climate allies.
ARCHITECTURE: How's it progressing?
Archiblogger posing questions of a historical and contextual nature.
The roofscape of Hampstead Garden Suburb
Residents, architects and roofers need to understand detailing.
Homes, landlords. tenants and the new housing standards
What will it all mean?
The Architectural Technology podcast: Where it's AT
Catch-up on the latest episodes.
Edmundson Apprentice of the Year award 2026
Entries now open for this Electrical Contractors' Association award.
Traditional blue-grey slate from one of the oldest and largest UK slate quarries down in Cornwall.
There are plenty of sources with the potential to be redeveloped.
Change of use legislation breaths new life into buildings
A run down on Class MA of the General Permitted Development Order.
Solar generation in the historic environment
Success requires understanding each site in detail.























