What type of property is Windsor House, Flat 3, 33 Upton Park, SL1 2DA?

Windsor House, Flat 3, 33 Upton Park, SL1 2DA is a 1-bedroom semi-detached house.

What did Windsor House, Flat 3, 33 Upton Park, SL1 2DA sell for?

Windsor House, Flat 3, 33 Upton Park, SL1 2DA last sold for £199,950 in February 2025, around 1 years ago. Land Registry has 3 sales on record going back to £58,950 in August 1998. Source: HM Land Registry.

How has the value of Windsor House, Flat 3, 33 Upton Park, SL1 2DA changed over time?

Across 3 sales between August 1998 and February 2025, Windsor House, Flat 3, 33 Upton Park, SL1 2DA rose from £58,950 to £199,950, a change of £141,000. That works out to roughly +4.7% per year compounded over 27 years. Source: HM Land Registry.

How energy efficient is Windsor House, Flat 3, 33 Upton Park, SL1 2DA?

The current EPC rating for Windsor House, Flat 3, 33 Upton Park, SL1 2DA is C with a score of 69 out of 100, lodged in August 2024. It has improved from a E recorded in June 2014 (2 bands). The assessor estimates the property could reach a B. Source: EPC Register.

What is the floor area of Windsor House, Flat 3, 33 Upton Park, SL1 2DA?

Windsor House, Flat 3, 33 Upton Park, SL1 2DA has a recorded floor area of 50 m² (538 sq ft), around 50 m² per bedroom. That makes it about 18% larger than the median EPC-recorded property in SL1 2DA. Source: EPC Register.

How is Windsor House, Flat 3, 33 Upton Park, SL1 2DA heated?

The latest EPC at Windsor House, Flat 3, 33 Upton Park, SL1 2DA records electricity as the main heating fuel. It is also flagged as connected to mains gas. Source: EPC Register.

What planning history does Windsor House, Flat 3, 33 Upton Park, SL1 2DA have?

Windsor House, Flat 3, 33 Upton Park, SL1 2DA has 1 planning record on file (1 refused), most recent in July 2006. Source: PlanIt planning register.

What council tax band is Windsor House, Flat 3, 33 Upton Park, SL1 2DA?

Windsor House, Flat 3, 33 Upton Park, SL1 2DA is in council tax band C.

Where is Windsor House, Flat 3, 33 Upton Park, SL1 2DA located?

Windsor House, Flat 3, 33 Upton Park, SL1 2DA sits in Slough. It falls within the SL1 postcode district.

Is Windsor House, Flat 3, 33 Upton Park, SL1 2DA in a safe area?

Police records around Windsor House, Flat 3, 33 Upton Park, SL1 2DA show an average of 656 reported crimes per month over the last 15 months. Violent crime makes up roughly 38% of reports, the most common category. The overall trend is falling (11% versus the prior period). Source: Police UK.

Which schools serve Windsor House, Flat 3, 33 Upton Park, SL1 2DA?

The closest primary school to Windsor House, Flat 3, 33 Upton Park, SL1 2DA is St Mary's Church of England Primary School (732m), one of 18 primaries within walking distance. The closest secondary is Slough and Eton Church of England Business and Enterprise College (522m), with 15 secondaries in the surrounding area.

What is the nearest station to Windsor House, Flat 3, 33 Upton Park, SL1 2DA?

The closest bus stop to Windsor House, Flat 3, 33 Upton Park, SL1 2DA is Albert Street, 177m away. The nearest bus option is Brunel Way, 865m away.

Calculators

Featured

UK House Price Map

30 years of UK sold prices mapped by postcode district.

Postcode-level detail
Compare areas side by side

Open the map

Windsor House, Flat 3, 33 Upton Park, Slough, SL1 2DA

3 sales on record1 planning record

Estimated value

£204,000

Since the 2025 sale (£199,950)+2%
Against SL1 2DA's recent median (£167,500)+22%

Newest record on this page: March 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation

Property type

Semi-detached

Floor 01

Bedroom

Bathroom

Floor area

50 m²

538 sq ft

Energy rating

Score 69

Council tax

Band C

Tenure

Owner Occupied

Get directions

Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£204,000

Against its 2025 sale (£199,950)+2%
Against SL1 2DA's recent median (£167,500)+22%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for Windsor House is modelled from its 50 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in SL1 2DA. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

Floor area
50 m² from the EPC lodged in August 2024
Sales of this home
3 sales recorded, the latest in 2025
Recent sales in SL1 2DA
5 sales, median £167,500 (2026–2024)

This page or the full report?

Data	This page	Full report
Sales	Latest sale shown: March 2026	Latest available records, read when you order
Valuation	Estimate from the last refresh	Analysed against comparable sales
Planning	1 application	Full history, plus nearby schemes
Flood risk	Not shown	Included

Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

Windsor House has more than tripled in price since its earliest registered sale in 1998.

Sales timeline

21 February 2025Most recent
£199,950
+21.2%over 10 years
8 October 2014
£165,000
+179.9%over 16 years
20 August 1998
£58,950

Median price across the last 5 sales in SL1 2DA: £167,500 (2026–2024).

Nearby sales in SL1 2DA

Risks

What this page doesn't show

1 potential issue has already been flagged for Windsor House, Flat 3, 33 Upton Park, Slough, SL1 2DA. The detail, evidence and what to ask about it are in the Risks Report.

Signs of HMO activity in the areaIn report
Flood risk from rivers, sea and surface waterIn report
Subsidence and ground-stability signalsIn report
Refusals, enforcement and big schemes nearbyIn report

One time fee only - money back guarantee

Overview

About Windsor House

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

Windsor House is a one-bedroom semi-detached house in Slough (SL1 2DA). It has a recorded floor area of 50 m² (around 538 sq ft), construction records dating it to before 1900 and council tax band C. At 50 m² this is the 5th smallest of 7 units on EPC record in Windsor House, where floor areas span 31–57 m². The building's EPC ratings span G to C, with this unit at the top. On EPC score it ranks first in the building (69 versus a worst of 19). Period features are noted in the property record. The latest certificate (August 2024) shows a C (score 69), just inside the C band. When first surveyed in June 2014 the rating was E, the property has climbed 2 bands since. Between certificates, window efficiency went from Very Poor to Average and main heating went from Poor to Average; while lighting dropped from Average to Very Poor. The recommended improvements would push it to B (score 82). Main heating runs on electricity.

It changed hands recently, sold February 2025 for £199,950. One planning record on file: partial demolition refused in 2006. The record references conservation-area consent, which constrain future alterations. At 50 m² it's 16.3% larger than the typical home in the postcode (43 m² median across 95 EPCs). Across 1998–2025, sale prices on this property compounded at 4.7% per year. On a £-per-square-foot basis, the last sale (£372/sq ft) was about 37.6% above the typical sold price in the postcode.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

Bedrooms1
Bathrooms1
Dining roomYes

Outside

Private gardenYes

Building

Period featuresYes

Before you decide

Everything you need to know about Windsor House

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the area

Pick your report · from £14.99

One time fee only - money back guarantee

The data behind every report

Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

Current Certificate(1 of 2)

Aug 2024

EPC Rating

C69

Main Heating

Electric

Main Fuel

Electric

Hot Water

Poor

Windows

Average

CO2 Emissions

2.9 t/year

Occupancy

Owner Occupied

Certificate validity

Valid until 20 August 2034

7 years remaining

Property Improvements

Changes detected from historical EPC data

Aug 2024from Jun 2014

EPC improved fromE49toC69

Windows

SingleFull Double

Single glazing replaced with double or better glazing

Low Energy Lighting

43%0%

Low energy lighting percentage decreased

Planning

Planning history

Applications and permits filed against Windsor House, Flat 3, 33 Upton Park, Slough, SL1 2DA, sourced from the PlanIt planning register.

Planning history includes recorded demolition works, indicating a major rebuild phase at this address.

1 application on record at Windsor House, Flat 3, 33 Upton Park, Slough, SL1 2DA

1decisions2documents18nearby

Flagged:DemolitionConservation area

Jul 2006
DemolitionHeritage
Outcome in report
DEMOLITION OF DISUSED BIN STORE (CONSERVATION AREA CONSENT).
Council
East
Conservation Area
Documents
2 docs on file
Reference
P/02113/002
Full record in report

Unlock Windsor House, Flat 3, 33 Upton Park, Slough, SL1 2DA's full planning history

You're seeing the shape of it. The report has the substance.

Every decision — granted, refused or withdrawn (1 on record)
All 1 application on this property in full, plus 18 notable nearby
The 2 documents, officer reports & conditions
What the pattern means for extending or converting here

£14.99one-off · instant

One time fee only - money back guarantee

On the street

Versus other Upton Park homes

Four headline reads against 90 similar flats on this street, drawn from the latest EPC and Land Registry data.

Windsor House outperforms the street on habitable rooms by a wide margin.

Price per m²

£3,999

Street avg £3,769

Above

Floor Area

50 m²

Street avg 44 m²

Above

Habitable Rooms

4 rooms

Street avg 2 rooms

Strongly above

CO₂ Emissions

2.9 t/year

Street avg 2.2 t/year

Below

Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Slough district page.

Full Slough report

Rail-style transport is unusually close for this postcode.

Crime

656/mo

Falling year-on-year across the wider district.

Nearest stop

0.2 km

Albert Street — bus stop.

Closest school

0.5 km

Slough and Eton Church of England Business and Enterprise College. 33 schools nearby.

Nearest schools

Slough and Eton Church of England Business and Enterprise CollegeSecondary522m
St Mary's Church of England Primary SchoolPrimary732m
Grove AcademyAll-through1.0km
Grove AcademyAll-through1.0km

Nearest stops

Albert StreetBus stop177m
Windsor Road McDonaldsBus stop302m
Red Cow RoundaboutBus stop480m
Herschel StreetBus stop491m

Most reported crime locally

Violence & Sexual Offences3,706 reports38%
Anti-social Behaviour911 reports9%
Vehicle Crime869 reports9%
Public Order773 reports8%

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around SL1 2DA from Defra's strategic mapping. The pin marks this postcode's centroid.

Daytime· 07:00 – 23:00

58.4dB

Moderate

Night-time road noise heatmap for SL1 2DA

Night-time· 23:00 – 07:00

50.9dB

Low

55 dB

60 dB

65 dB

70 dB

75 dB

80 dB

Defra Road Noise Strategic Mapping, Round 4

Get a survey for this property

Level 3 Building Survey

Victorian-era1st Floor FlatEPC CPre-1919 buildSolid (non-cavity) walls

Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.

From £885 · Includes VAT

Comparables

Where every figure above comes from, how current it is and what it can't tell you.

Valuation method in detail

How the estimate is made: The estimate for Windsor House is modelled from its 50 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in SL1 2DA. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from: Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 3 sales are recorded for Windsor House. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC: Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for Windsor House was lodged in August 2024 at band C and is valid until August 2034. 2 certificates are on record, which shows how the home has changed.
Planning records: Planning applications are collected from local authority registers through PlanIt. 1 application is matched to Windsor House. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures: Crime is police-recorded street-level data over the last 15 months, which places each incident at an approximate point. The 33 schools and 30 stops listed are measured in a straight line from SL1 2DA, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band: Windsor House is in council tax band C. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about Windsor House, Flat 3, 33 Upton Park, Slough, SL1 2DA. Each answer is also embedded as structured data for search engines.

Know this home? Think our valuation is wrong?

Leave a note for other visitors about work done or anything the records miss, and say what you think it's worth. It takes about two minutes.

Windsor House, Flat 3, 33 Upton Park, Slough, SL1 2DA

How the estimate is made

What it's based on

This page or the full report?

Sales timeline

Nearby sales in SL1 2DA

Inside

Outside

Building

Everything you need to know about Windsor House

EPC Rating

Property Improvements

Unlock Windsor House, Flat 3, 33 Upton Park, Slough, SL1 2DA's full planning history

Nearest schools

Nearest stops

Most reported crime locally

Level 3 Building Survey

2 Burlington Court, Flat 2, Burlington Road

19a, Flat 6, Upton Park

19a, Flat 1, Upton Park

2 Burlington Court, Flat 1, Burlington Road

19a, Flat 5, Upton Park

19a, Flat 3, Upton Park

3 Burlington Court, Flat 1, Burlington Road

23a, Flat 5, Upton Park

Get up to date data on unlimited properties per month

Know this home? Think our valuation is wrong?

Keep exploring