18a, Allergate, Durham, DH1 4ET
About 18a
18a is a two-bedroom mid-terrace house in Durham (DH1 4ET). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (September 2019) shows a C (score 72). When first surveyed in October 2008 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency dropped from Good to Average and window efficiency dropped from Poor to Very Poor. At 59 m² this is the 20th smallest of 40 units on EPC record in the building, where floor areas span 25–212 m². The building's EPC ratings span E to B across 40 units on file. Period features are noted in the property record.
Untraded for 17 years, with the last transfer in March 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. One planning record on file: an extension approved in 2002. Past consents include an extension, meaningful when judging how the property has evolved. Across 1995–2009, sale prices on this property compounded at 7.5% per year. Today's modelled estimate of £183,000 is 22% above the 2009 sale price. On a £-per-square-foot basis, the last sale (£236/sq ft) was about 25.8% above the typical sold price in the postcode. 2 bedrooms is on the smaller side for this postcode, where 4 is the typical count.
What this property has
Inside
- Bedrooms2
- Bathrooms1
Outside
- Private gardenYes
Building
- Period featuresYes
Everything you need to know about 18a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Low energy lighting percentage decreased
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has been extended more than once, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Council records include a two-storey rear extension at 18a.
1 application on record at 18a, Allergate, Durham, DH1 4ET
- Jan 2002ExtensionFullOutcome in report
Extension: Two storey · Rear of property
Erection of two storey pitched roof extension to rear of existing dwelling
- Reference
- 4/01/00921/FPA
Unlock 18a, Allergate, Durham, DH1 4ET's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 53 notable nearby
- What the pattern means for extending or converting here
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Sales history & valuation
18a has more than doubled in price since the earliest registered sale in 1995.
£183,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.5% per year over 14 years.
£150,000
Growth on file: 7.5% per year over 14 years.
Sales timeline
30 March 2009Most recent
£150,000
+180.4%over 14 years20 January 1995
£53,500
Median price across the last 5 sales in DH1 4ET: £280,000 (2025–2021).
Versus other Allergate homes
18a outperforms the street on habitable rooms by a wide margin.
Price per m²
£2,542
Street avg £3,307
Floor Area
59 m²
Street avg 50 m²
Habitable Rooms
3 rooms
Street avg 2 rooms
CO₂ Emissions
2.1 t/year
Street avg 2.3 t/year
Everything you need to know about 18a
The true value, the hidden risks and the full sale history, in one report.
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Bus Station Stand J — bus station.
Closest school
0.6 km
St Margaret's Church of England Primary School. 17 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
51.3dB

Night-time· 23:00 – 07:00
41.9dB






