3 Castlebay Court, Darlington, DL1 3RF
About 3 Castlebay Court
3 Castlebay Court is a two-bedroom end-of-terrace house in Darlington (DL1 3RF). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to 1996-2002 and council tax band B. The latest certificate (February 2013) shows a D (score 64), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since January 2012. Between certificates, roof efficiency went from Good to Very Good; while lighting dropped from Good to Poor. The recommended improvements would lift it to B (score 84), a 2-band jump. The latest certificate is from February 2013, so improvements made since then won't be reflected.
Untraded for 30 years, with the last transfer in June 1996. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £141,000 sits 220.5% above the 1996 sale of £44,000. On a £-per-square-foot basis, the last sale (£54/sq ft) was about 64.5% below the postcode norm. One planning record on file: an extension approved in 2016. Past consents include an extension and a garage conversion, meaningful when judging how the property has evolved. At 76 m² it's 16% larger than the typical home in the postcode (66 m² median across 12 EPCs).
What this property has
Inside
- Bedrooms2
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 28 Feb 2023
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Roof insulation improved
Floor insulation added or improved
Low energy lighting percentage decreased
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Level 2 HomeBuyer Report
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Planning history
1 application on record at 3 Castlebay Court, Darlington, DL1 3RF
- Apr 2016Garage ConversionFullOutcome in report
Extension: Single storey · Rear of property
Conversion of garage into habitable accommodation, erection of an first floor extension above and alterations to existing single storey rear extension
Extension- Documents
- 6 docs on file
- Reference
- 16/00229/FUL
Unlock 3 Castlebay Court, Darlington, DL1 3RF's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 2 notable nearby
- The 6 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
3 Castlebay Court's estimated value is more than triple its earliest registered sale price (1996).
£141,000
Modelled from EPC, postcode comparables.
£44,000
Recorded with HM Land Registry.
Sales timeline
27 June 1996Most recent
£44,000
Median price across the last 5 sales in DL1 3RF: £135,000 (2025–2019).
Nearby sales in DL1 3RF
Versus other Castlebay Court homes
On price per m², 3 Castlebay Court runs well behind the street norm.
Price per m²
£579
Street avg £1,885
Floor Area
76 m²
Street avg 64 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
3.3 t/year
Street avg 3.4 t/year
Similar properties nearby
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
8/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Caledonian Way — bus stop.
Closest school
0.4 km
Whinfield Primary School. 13 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
48.1dB

Night-time· 23:00 – 07:00
39.9dB







