17 Bertha Street, Ferryhill, DL17 8AZ
About 17 Bertha Street
17 Bertha Street is an end-of-terrace house in Ferryhill (DL17 8AZ). It has a recorded floor area of 75 m² (around 807 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (March 2021) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in November 2010 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Good and lighting went from Very Poor to Very Good; while roof efficiency dropped from Good to Poor. The recommended improvements would lift it to B (score 85), a 2-band jump.
Across 2002–2021, sale prices on this property compounded at 7.2% per year. Today's modelled estimate of £111,000 sits 101.8% above the 2021 sale of £55,000. On a £-per-square-foot basis, the last sale (£68/sq ft) was about 59.2% above the typical sold price in the postcode. Most recent transfer: July 2021 at £55,000. Across the public record there are 8 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 17 Bertha Street
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
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
Windows upgraded, improving insulation
More low energy lighting installed
Planning history
17 Bertha Street has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
We flagged 1 thing worth checking at 17 Bertha Street
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
30-day money-back guarantee
Sales history & valuation
17 Bertha Street has more than tripled in price since its earliest registered sale in 2002.
£111,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.2% per year over 19 years.
£55,000
Growth on file: 7.2% per year over 19 years.
Sales timeline
8 July 2021Most recent
£55,000
+94.7%over 5 years18 March 2016
£28,250
+13.0%over 2 years31 July 2013
£25,000
2 August 2011
£25,000
-53.7%over 4 years12 April 2007
£54,000
+92.9%over 3 years12 March 2004
£28,000
+21.7%over 9 months19 June 2003
£23,000
+53.3%over 7 months22 November 2002
£15,000
Median price across the last 5 sales in DL17 8AZ: £40,500 (2025–2024).
Nearby sales in DL17 8AZ
Everything we know about 17 Bertha Street, 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

Versus other Bertha Street homes
Price per m²
£733
Street avg £686
Floor Area
75 m²
Street avg 73 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
4.2 t/year
Street avg 4.1 t/year
Similar properties nearby
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Rutherford Terrace — bus stop.
Closest school
0.4 km
Broom Cottages Primary & Nursery School. 7 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
47.6dB

Night-time· 23:00 – 07:00
37.4dB