Glasfryn, Waldron Road, Harrow, HA1 3LN
About Glasfryn
Glasfryn is a five-bedroom semi-detached house in Harrow (HA1 3LN). It has a recorded floor area of 298 m² (around 3208 sq ft), construction records dating it to 1900-1929 and council tax band G. The latest certificate (April 2017) shows an E (score 40), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 77), a 2-band jump.
At 298 m² the property is well over the postcode median (76 m² across 9 EPCs), placing it in the larger end of the local stock. 5 bedrooms is on the larger side for this postcode, where 3 is the typical count. 4 planning records sit against the property, 2 approved, 1 refused. Past consents include an extension and new windows, meaningful when judging how the property has evolved. Today's modelled estimate of £1,499,000 is 19.9% above the 2021 sale price. Last sale on file: £1,250,000 in March 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Glasfryn
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
- Bedrooms5
- Bathrooms3
- CloakroomYes
- EnsuiteYes
Outside
- Private gardenYes
- DrivewayYes
Building
- RefurbishedYes
Energy performance
Glasfryn's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
A solar panel installation application was refused at Glasfryn in 2022.
- Mar 2025ExtensionFullIn report
Extension: Single storey
Alterations to front porch roof to raise height, External wall insulation to lower ground, ground and first floor front elevation, External wall insulation to side elevation, External wall insulation to lower ground floor rear elevation, Replacement windows to front, side and rear elevations, Replacement of door with window in lower ground side elevation and ground floor rear elevation, Alterations to roof to replace tiles and rear dormers, Detached single storey outbuilding to front to house air source heat pump (Demolition of gas tanks on side elevation, antenna on side elevation, steel staircase to rear) and all associated works
New Windows- Reference
- PL/0539/25
- Jun 2022Solar PanelsFullIn report
Extension: Single storey
First floor front infill extension; alterations to roof; installation of rear bay window to second floor; external steps to rear; installation of ASHP unit to side elevation at ground floor level; installation of photovoltaic panels to side at first floor level; external alterations (demolition of rear external staircase)
ExtensionDemolition- Documents
- 24 docs on file
- Reference
- P/1197/22
We flagged 2 things worth checking at Glasfryn
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
- A planning decision worth checking
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Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£1,499,000
Modelled from EPC, postcode comparables.
£1,250,000
Recorded with HM Land Registry.
Sales timeline
3 March 2021Most recent
£1,250,000
Median price across the last 5 sales in HA1 3LN: £465,000 (2024–2018).
Nearby sales in HA1 3LN
5 Waldron Road, Harrow, HA1 3LN
Sold Dec 2024
£775,000Waldron Cottage, Waldron Road, Harrow, HA1 3LN
Sold Jun 2024
£1,375,000Aboyne, Flat 3, Waldron Road, Harrow, HA1 3LN
Sold May 2022
£465,000Derrylands, Flat 1, Waldron Road, Harrow, HA1 3LN
Sold Mar 2022
£280,000Derrylands, Flat 4, Waldron Road, Harrow, HA1 3LN
Sold Aug 2006
£380,000
Everything we know about Glasfryn, 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
- A planning decision worth checking

Versus other Waldron Road homes
EPC Rating for Glasfryn lags the street by a wide margin.
Price per m²
£4,195
Street avg £5,972
Floor Area
298 m²
Street avg 124 m²
Habitable Rooms
10 rooms
Street avg 5 rooms
CO₂ Emissions
18.0 t/year
Street avg 6.6 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
28/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Harrow Park — bus stop.
Closest school
0.4 km
Roxeth Primary School. 34 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
49.5dB

Night-time· 23:00 – 07:00
41.0dB