15 Mill Street, Stockton On Tees, TS20 1AB
About 15 Mill Street
15 Mill Street is a three-bedroom mid-terrace house in Stockton On Tees (TS20 1AB). It has a recorded floor area of 123 m² (around 1324 sq ft), construction records dating it to 1900-1929 and council tax band B. Tenure is freehold. The latest certificate (June 2023) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in June 2009 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Good to Very Good; while roof efficiency dropped from Good to Very Poor. The recommended improvements would push it to C (score 77). Other recorded features include a basement and a loft.
At 123 m² the property is well over the postcode median (90 m² across 20 EPCs), placing it in the larger end of the local stock. One planning record on file: a loft conversion approved in 2011. Past consents include a loft conversion, meaningful when judging how the property has evolved. Across 1996–2023, sale prices on this property compounded at 6.4% per year. Today's modelled estimate of £185,000 is 14.9% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£122/sq ft) was about 15.2% above the typical sold price in the postcode. Sold September 2023 for £161,000.
What this property has
Inside
- Bedrooms3
- Bathrooms2
- Dining roomYes
- EnsuiteYes
- LoftYes
- BasementYes
Outside
- Private gardenRear
Building
- TenureFreehold
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
Wall insulation improved
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
More low energy lighting installed
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
1 application on record at 15 Mill Street, Stockton On Tees, TS20 1AB
- Jul 2011Loft ConversionFullOutcome in report
Loft conversion to rear with dormer and 2 no. velux to front
- Documents
- 4 docs on file
- Reference
- 11/1870/FUL
Unlock 15 Mill Street, Stockton On Tees, TS20 1AB'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
- The 4 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
15 Mill Street has more than quadrupled in price since its earliest registered sale in 1996.
£185,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.4% per year over 27 years.
£161,000
Growth on file: 6.4% per year over 27 years.
Sales timeline
14 September 2023Most recent
£161,000
+22.0%over 5 years19 January 2018
£132,000
+5.6%over 5 years15 October 2012
£124,950
+13.6%over 1 year19 November 2010
£110,000
+260.7%over 14 years8 November 1996
£30,500
Median price across the last 5 sales in TS20 1AB: £145,000 (2025–2024).
Nearby sales in TS20 1AB
22 Mill Street, Stockton On Tees, TS20 1AB
Sold Sept 2025
£143,00024 Mill Street, Stockton On Tees, TS20 1AB
Sold Aug 2025
£145,00026 Mill Street, Stockton On Tees, TS20 1AB
Sold Jul 2025
£180,00013 Mill Street, Stockton On Tees, TS20 1AB
Sold Oct 2024
£147,00028 Mill Street, Stockton On Tees, TS20 1AB
Sold Mar 2024
£122,000
Versus other Mill Street homes
15 Mill Street outperforms the street on floor area by a wide margin.
Price per m²
£1,309
Street avg £1,339
Floor Area
123 m²
Street avg 89 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
5.7 t/year
Street avg 5.0 t/year
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The neighbourhood at a glance
Crime
7/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Library — bus stop.
Closest school
0.1 km
St Joseph's Catholic Academy. 22 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
54.4dB

Night-time· 23:00 – 07:00
44.0dB







