The Penthouse, 1
The Penthouse, 1
Description & Estimates







Public records show The Penthouse, 1, William Street, Windsor to be a modern leasehold apartment with 1,097 ft2 of internal area.
In this area, apartments of this size normally have 3 bedrooms.
The Penthouse, 1, William Street, Windsor has an estimated sale value of £442,985 and an estimated rental value of £1,799 per month, assuming reasonable condition and based on the information available.
The apartment sits within 1, William Street, Windsor, SL4.
William Street, Windsor, SL4 lies within the SL4 postal district.
Our Data Sources
The Penthouse, 1, William Street, Windsor has 2 entries in the Land Registry , most recently in August 2014 and a single entry in the EPC database dated December 2021.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
Price Range & Condition
In very good condition, we estimate The Penthouse, 1, William Street, Windsor would be worth £465,134, with a potential rental value of £1,889 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £411,976, with a rental value of £1,673 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Recent Market Change
The estimated sale value of The Penthouse, 1, William Street, Windsor has fallen by £7,931 (1.8%) over the last year. During the same period, its estimated monthly rental value has moved up by £30 (1.7%). The property's estimated gross yield is currently 4.9%.
Energy Efficiency
The Penthouse, 1, William Street, Windsor has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 15 Dec 2021.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and underfloor heating, mains gas.
Sold Prices
The Penthouse, 1, William Street, Windsor last changed hands on 15th August 2014, selling for £549,950. The transaction was logged as a leasehold flat by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 1.0% since August 2014.
- Sold Aug 2014£549,950
- Sold Aug 2012£351,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 440 metres of The Penthouse, 1, William Street, Windsor across the last 2 years.
Most recently, 6 Queen Annes Court, Peascod Street, Windsor, SL4 1DG, a leasehold flat, sold at £300,000 on the 31st May 2024.
Read more about house prices in SL4.
- Sold May 2024£300,000 | 3 Bed FlatPeascod Street6 Queen Annes Court, Peascod Street, Windsor, SL4 1DG
- Sold Jul 2018£570,000 | 3 Bed FlatAlexandra Court 25A, St. Leonards RoadFlat 13, Alexandra Court 25A, St. Leonards Road, Windsor, SL4 3BP
- Sold Apr 2017£387,500 | 3 Bed FlatAlexandra Court 25A, St. Leonards RoadFlat 2, Alexandra Court 25A, St. Leonards Road, Windsor, SL4 3BP
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks The Penthouse, 1, William Street, Windsor as the 4th largest and the 4th most expensive of the 24 addresses on William Street, Windsor, SL4.
Against the SL4 postcode district average, it is £142k less expensive than the typical property.
More reading links
Schools Nearby
- 600mTrinity St Stephen CofE Aided First School
- 800mThe Queen Anne Royal Free CofE Controlled First School
- 1.0kmEton Porny CofE First School
- 700mThe Windsor Boys' School
- 1.6kmWindsor Girls' School
- 2.2kmChurchmead Church of England (VA) School
More reading links
Public Transport Nearby
Windsor & Eton Central station is the nearest stop to The Penthouse, 1, William Street, Windsor at 300 metres away.
- 300mWindsor & Eton Central
- 600mWindsor & Eton Riverside
- 2.2kmDatchet
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a very low risk of flooding.

