21 Old School Mews, Staines Upon Thames, TW18 3HX
About 21 Old School Mews
21 Old School Mews is a four-bedroom end-of-terrace house in Staines Upon Thames (TW18 3HX). It has a recorded floor area of 143 m² (around 1539 sq ft), construction records dating it to 1996-2002 and council tax band G. Other recorded features include a balcony. Our model identifies extension potential, subject to local planning policy. The latest certificate (March 2021) shows a C (score 73). The recommended improvements would push it to B (score 81).
At 143 m² the property is well over the postcode median (90 m² across 16 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 1 approved, 0 refused. Past consents include tree works, meaningful when judging how the property has evolved. Across 2001–2022, sale prices on this property compounded at 3.8% per year. On a £-per-square-foot basis, the last sale (£453/sq ft) was about 52.3% above the typical sold price in the postcode. Sold April 2022 for £698,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 21 Old School Mews
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms4
- Bathrooms3
- EnsuiteYes
Outside
- Private gardenYes
- BalconyYes
Building
- Extension potentialPossible
Energy performance
EPC Rating
Planning history
Planning history at 21 Old School Mews is exclusively tree-management applications — typical for a property with mature trees on or near the plot.
- Apr 2023Tree WorksOtherIn report
T1 Walnut - Reduce crown by no more than 1.5 m. Remove epicormic growth on the trunk ie to the crown break. T2 Walnut - Reduce the height by no more than 1.5 m, reduce the overextended lateral limbs which grow over the school play area by 2.5 m.
- Documents
- 5 docs on file
- Reference
- RU.23/0297
- Mar 2014Tree WorksTreesIn report
Reduce crown of Walnut tree by 2 metres all round marked T1 on the submitted plan, reduced walnut tree by 2.5 metres all round marked T2 on the submitted plan protected by Tree Preservation Order No. 325
- Documents
- 3 docs on file
- Reference
- RU.14/0119
We flagged 2 things worth checking at 21 Old School Mews
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
- Environmental risk flagged
30-day money-back guarantee
Sales history & valuation
Latest sale on 21 Old School Mews was the highest on Land Registry record across the postcode.
£706,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.8% per year over 20 years.
£698,000
Growth on file: 3.8% per year over 20 years.
Sales timeline
7 April 2022Most recent
£698,000
+114.8%over 20 years30 November 2001
£325,000
Median price across the last 5 sales in TW18 3HX: £358,000 (2022–2018).
Nearby sales in TW18 3HX
11 Old School Mews, Staines Upon Thames, TW18 3HX
Sold May 2022
£325,0004 Old School Mews, Staines Upon Thames, TW18 3HX
Sold Apr 2021
£330,00014 Old School Mews, Staines Upon Thames, TW18 3HX
Sold Jul 2020
£400,0001 Old School Mews, Staines Upon Thames, TW18 3HX
Sold Oct 2018
£417,50012 Old School Mews, Staines Upon Thames, TW18 3HX
Sold May 2018
£358,000
Everything we know about 21 Old School Mews, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby
- Environmental risk flagged

Versus other Old School Mews homes
On habitable rooms, 21 Old School Mews stands well clear of the street.
Price per m²
£4,881
Street avg £4,079
Floor Area
143 m²
Street avg 93 m²
Habitable Rooms
7 rooms
Street avg 4 rooms
CO₂ Emissions
3.8 t/year
Street avg 3.0 t/year
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The neighbourhood at a glance
Crime
8/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Wendover Road — bus stop.
Closest school
0.1 km
Hythe Primary School. 9 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
53.0dB

Night-time· 23:00 – 07:00
45.8dB