20 PARK AVENUE, TW18 2EF is a Semi-Detached in Staines-Upon-Thames, Surrey, England. It last sold for £687,500 in 2021. Its current EPC rating is C (score 76 out of 100), with potential to reach B. Floor area is approximately 139 m². This works out at about £4,946 per m², 6% below the town average of £5,235 per m² (context, not a valuation). Tenure: Freehold. Local authority: Spelthorne.
20 PARK AVENUE
STAINES-UPON-THAMES, SURREY · TW18 2EF
Things you should know
A quick summary of this property, drawn from its records.
It's a semi-detached property, held freehold, with 139 m² of floor area.
Last sold for £687,500 in March 2021 — its only sale on record. · HM Land Registry
That sale works out at ~£4,946/m² — 6% below the town average of £5,235/m² (3,601 sales). · Context, not a valuation
Energy rating EPC C (score 76/100), with potential to reach B. · EPC, inspected 2020
Built 1930–1949. · Construction age band, from EPC
Facts from HM Land Registry (sales) and the EPC register (energy), under the Open Government Licence. Area comparisons are context, not a valuation or financial advice. Figures are as per our current dataset, which we're expanding continually.
Property Overview
Key facts from EPC & HM Land Registry records.
Built Form
Semi-Detached
Tenure
Freehold
Floor Area
139 m²
≈ 1,496 sq ft
Year Built
1930–1949
Construction age band, from EPC
Current EPC Rating
Band C · Score 76/100
Potential Band B · Valid until 6 August 2030
Local Authority
Spelthorne↗
📍 Approximate location based on postcode centroid. Exact pin coming soon.
Value Insights
Price metrics derived from sale price and floor area.
Price per square metre
£4,946 /m²
Based on the 2021 sale
£/m² vs STAINES-UPON-THAMES
−6% below the average sale price
Area avg £5,235/m² · 3,601 sales
Floor area
139 m²
≈ 1,496 sq ft · from EPC
Last sale price
£687,500
25 March 2021
How This Compares
How this property's 2021 sale price of £687,500 compares with the average sale price nearby — based on recorded house prices (not £/m²).
vs TW18 postcode area
TW18 average sale price: £444,996 · based on 3,048 sales
vs STAINES-UPON-THAMES average
STAINES-UPON-THAMES average sale price: £428,520 · based on 3,963 sales
Averages are across all property types sold 2020–2026 in our dataset, so they reflect the mix of homes in the area rather than like-for-like.
Sales History
1 sale recorded
Last sold
£687,500
25 March 2021
25 March 2021
Latest£687,500
Semi-Detached · Freehold
Only one sale is recorded for this property, so change and annualised return can't be calculated yet. They'll appear automatically if it sells again.
EPC Intelligence
Energy Performance Certificate history for this property.
Energy Efficiency Over Time
Year-on-year EPC score progression for this property.
EPC energy efficiency scores for 20 PARK AVENUE. The property scored 57 (Rating D) in 2012 and 88 (Rating B) in 2020, an improvement of 31 points.
Point improvement
2012 to 2020
Summary: EPC energy efficiency scores for 20 PARK AVENUE. The property scored 57 (Rating D) in 2012 and 88 (Rating B) in 2020, an improvement of 31 points.
Rating C · Score 76
LatestInspected 6 August 2020
Valid until 6 August 2030
Potential
Floor Area
139 m²
Construction Era
1930–1949
CO₂ Emissions
3.1 t/yr
Mains Gas
Yes
Walls
Solid brick, as built, no insulation (assumed)
Very PoorRoof
Pitched, 250 mm loft insulation
GoodWindows
Fully double glazed
GoodMain Heating
Boiler and radiators, mains gas
GoodRating B · Score 88
Inspected 6 August 2020
Valid until 6 August 2030
Potential
Floor Area
139 m²
Construction Era
1930–1949
CO₂ Emissions
1.6 t/yr
Mains Gas
Yes
Walls
Solid brick, as built, no insulation (assumed)
Very PoorRoof
Pitched, 250 mm loft insulation
GoodWindows
Fully double glazed
GoodMain Heating
Boiler and radiators, mains gas
GoodRating D · Score 57
Inspected 18 July 2012
Expired 18 July 2022
Potential
Floor Area
107 m²
Construction Era
1930–1949
CO₂ Emissions
5.4 t/yr
Mains Gas
—
Walls
Solid brick, as built, no insulation (assumed)
Very PoorRoof
Pitched, 150 mm loft insulation
GoodWindows
Fully double glazed
AverageMain Heating
Boiler and radiators, mains gas
GoodiHow is the EPC score calculated?
The score (1–100) is the property's energy efficiency rating, produced by an accredited Domestic Energy Assessor using the UK Government's Standard Assessment Procedure (SAP). A higher score means a more energy-efficient home that's cheaper to run.
It's calculated from the property's physical characteristics, including:
- Size & floor area
- Construction & age
- Wall, roof & floor insulation
- Windows / glazing
- Main heating & controls
- Hot water & lighting
These are the factors shown in the certificates above. The score maps to a band — A (92–100, most efficient) down to G(1–20). The "potential" score is what could be achieved with the recommended improvements. Source: MHCLG EPC Register.
Schools
Schools and Ofsted ratings near this property.
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Primary & secondary schools, Ofsted ratings and catchment info — on UKTeachingJobs
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Property Intelligence
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Planning Intelligence
Planning applications and decisions for this property and surrounding area.
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Valuation Intelligence
Automated valuation model and local price trend analysis.