How much is 117 Thirlmere Avenue, Slough, SL1 6EB worth?
Estimated value — July 2026
£218,000
Likely range £126,000 – £272,000Four in five similar homes sold within their range when we tested it.
Latest recorded sale January 1999
14%
confidence
Low
Typically within 22% of the sale price
Property details
Flat / Maisonette
Thirlmere Avenue · Slough · SL1 6EB
Energy performance
Mains Gas (Not Community) · EPC 0235-2867-7568-9505-4641 · inspected June 2015
Address
- District
- Slough
- County
- Slough
Value over time
- Modelled value
- Likely range (80%)
- Today's estimate
Modelled by indexing this property's most recent recorded sale, month by month, against the UK House Price Index for its area and property type. Earlier sales are shown as recorded. Today's estimate also uses the property's earlier sales, so it can sit a little off the line. The shaded band is where four in five prices fell when we tested this line against real sales of similar homes; it widens the further a month is from the most recent sale.
View as a table
| Year | Modelled value | Likely range |
|---|---|---|
| 2000 | £81,081 | £66,240 – £87,571 |
| 2001 | £97,334 | £81,934 – £106,818 |
| 2002 | £116,506 | £98,358 – £129,653 |
| 2003 | £127,664 | £107,508 – £143,867 |
| 2004 | £138,205 | £115,256 – £157,808 |
| 2005 | £138,096 | £114,784 – £158,802 |
| 2006 | £151,134 | £125,589 – £176,337 |
| 2007 | £160,527 | £133,763 – £191,131 |
| 2008 | £138,943 | £115,918 – £168,797 |
| 2009 | £137,337 | £114,350 – £168,823 |
| 2010 | £138,552 | £114,160 – £171,468 |
| 2011 | £139,469 | £114,120 – £175,687 |
| 2012 | £139,807 | £114,483 – £176,459 |
| 2013 | £147,848 | £121,371 – £188,132 |
| 2014 | £169,777 | £137,776 – £218,916 |
| 2015 | £200,042 | £164,497 – £258,145 |
| 2016 | £222,685 | £184,922 – £288,689 |
| 2017 | £225,849 | £186,964 – £295,032 |
| 2018 | £225,126 | £186,490 – £303,985 |
| 2019 | £209,788 | £175,186 – £293,609 |
| 2020 | £212,187 | £177,697 – £301,964 |
| 2021 | £225,263 | £188,078 – £319,934 |
| 2022 | £232,359 | £193,500 – £328,792 |
| 2023 | £230,217 | £190,403 – £326,866 |
| 2024 | £232,092 | £194,950 – £333,645 |
| 2025 | £223,899 | £188,346 – £322,223 |
| 2026 | £217,737 | — |
Sale history
Mortgage calculator
£1,170
Estimated monthly repayment
£196,200
Loan amount
£225,007
Total interest
£421,207
Total repayable
A guide only, based on a capital repayment mortgage held at a constant interest rate for the full term. Not a mortgage offer or financial advice.
Related properties
- 23 Thirlmere Avenue, Slough, SL1 6EB£255,000 · 2025£237,000
- 63 Thirlmere Avenue, Slough, SL1 6EB£245,000 · 2023£231,000
- 47 Thirlmere Avenue, Slough, SL1 6EB£225,000 · 2017£220,000
- 71 Thirlmere Avenue, Slough, SL1 6EB£142,000 · 2005£224,000
- 39 Thirlmere Avenue, Slough, SL1 6EB£120,000 · 2004£202,000
- 35 Thirlmere Avenue, Slough, SL1 6EB£135,000 · 2004£225,000
- 31 Thirlmere Avenue, Slough, SL1 6EB£278,000 · 2026£268,000
- 37 Thirlmere Avenue, Slough, SL1 6EB£180,000 · 2025£185,000
- 125 Thirlmere Avenue, Slough, SL1 6EB£280,000 · 2024£264,000
- 87 Thirlmere Avenue, Slough, SL1 6EB£277,500 · 2024£257,000
About this property
117 Thirlmere Avenue, Slough, SL1 6EB is a flat on Thirlmere Avenue in Slough. Stede's estimated value for July 2026 is £218,000. Four in five similar homes sold within their likely range when tested; for this property that range is £126,000 to £272,000. It re-indexes the property's recorded sale prices to today using the UK House Price Index. The confidence score is 14 out of 100 (low): estimates like this one are typically within 22% of the eventual sale price.
It last sold in January 1999 for £58,000. The current estimate is 276% higher than that price. The current owner has held it for about 27 years.
Its EPC energy-efficiency rating is band D (65 out of 100), with a potential of band C (74) after the recommended improvements. The certificate records a total floor area of 56 m² (603 sq ft). It was lodged in June 2015.
The modelled value is down 5% over the past year and down 3% over the past five years.
Among 10 nearby properties Stede tracks in the SL1 area, estimated values run from £185,000 to £268,000. This flat's £218,000 sits around the middle of that range.
Common questions
How much is 117 Thirlmere Avenue, Slough, SL1 6EB worth?
Stede estimates 117 Thirlmere Avenue, Slough, SL1 6EB is worth £218,000 as of July 2026, within a likely range of £126,000 to £272,000. The estimate is generated automatically from recorded sale prices and the UK House Price Index, and is not a formal valuation.
When did 117 Thirlmere Avenue, Slough, SL1 6EB last sell?
It last sold in January 1999 for £58,000.
What type of property is 117 Thirlmere Avenue, Slough, SL1 6EB?
It is recorded as a Flat / Maisonette on Thirlmere Avenue in the SL1 postcode area.
What is the EPC rating of 117 Thirlmere Avenue, Slough, SL1 6EB?
117 Thirlmere Avenue, Slough, SL1 6EB has an EPC energy-efficiency rating of band D (65 out of 100). Its potential rating after the recommended improvements is band C (74). The certificate records a floor area of 56 m² (603 sq ft). EPC data is published by the Ministry of Housing, Communities & Local Government and reflects the most recent certificate on record.
How reliable is this estimate?
The confidence score is 14 out of 100 (low). Tested against real sales of similar homes, estimates like this one are typically within 22% of the sale price, and four in five sold within their likely range. The figure is a data model, not a RICS valuation or Home Report, and should not be used for mortgage or legal decisions.
How does Stede calculate this estimate?
Stede re-indexes this property's recorded sale prices to today using the House Price Index for its type and region, and tests the result against real sales to set the likely range and confidence. Full detail is on the methodology page.
How we calculated this
This estimate re-indexes the property's recorded sale prices to today with the UK House Price Index for its area and type. Its range and confidence come from testing the same method against 24,319 real sales of similar homes.
2
Valuation methods used
1
Recorded sales on file
1999
Most recent recorded sale