21a, Mill Street, Luton, LU1 2NA
About 21a
21a is a mid-terrace house in Luton (LU1 2NA). It has a recorded floor area of 50 m² (around 538 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (February 2021) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in June 2011 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Good. The recommended improvements would push it to C (score 70). At 50 m² this is the 35th smallest of 68 units on EPC record in the building, where floor areas span 22–75 m². The building's EPC ratings span E to B across 68 units on file.
It hasn't traded since August 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. 9 planning records sit against the property, 6 approved, 2 refused. Past consents include a loft conversion, meaningful when judging how the property has evolved. Across 2005–2007, sale prices on this property compounded at 30.6% per year. On a £-per-square-foot basis, the last sale (£465/sq ft) was about 137.4% above the typical sold price in the postcode.
Everything you need to know about 21a
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
Windows upgraded, improving insulation
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
21a has been through 6 approved planning applications — a well-evolved property.
9 applications on record at 21a, Mill Street, Luton, LU1 2NA
- Sept 2002New BuildFullOutcome in report
Erection of a 5 storey building to provide offices at ground floor with 20 one bedroom flats above.
- Reference
- 02/00111/FUL
- More recent applications — locked
- ConditionsJul 2010Decision
- New BuildMar 2007Decision
+ 6 more applications in the report
Unlock 21a, Mill Street, Luton, LU1 2NA's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (9 on record)
- All 9 applications on this property in full, plus 16 notable nearby
- The 1 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£225,000
Modelled from EPC, postcode comparables and a sale-price growth of 30.6% per year over 2 years.
£250,000
Growth on file: 30.6% per year over 2 years.
Sales timeline
8 August 2007Most recent
£250,000
+92.3%over 2 years25 February 2005
£130,000
Median price across the last 5 sales in LU1 2NA: £130,000 (2025–2023).
Nearby sales in LU1 2NA
Langham House, Flat 5, Mill Street, Luton, LU1 2NA
Sold Sept 2025
£130,000Langham House West, Flat P, Mill Street, Luton, LU1 2NA
Sold Sept 2025
£167,00027 Mill Street, Luton, LU1 2NA
Sold May 2025
£190,000Langham House, Flat 4, Mill Street, Luton, LU1 2NA
Sold Nov 2023
£124,000Langham House, Flat 14, Mill Street, Luton, LU1 2NA
Sold Sept 2023
£125,700
Versus other Mill Street homes
On price per m², 21a stands well clear of the street.
Price per m²
£5,000
Street avg £3,077
Floor Area
50 m²
Street avg 51 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
2.3 t/year
Street avg 2.3 t/year
Everything you need to know about 21a
The true value, the hidden risks and the full sale history, in one report.
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Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Railway Bridge — bus stop.
Closest school
0.7 km
St Matthew's Primary School. 37 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
55.4dB

Night-time· 23:00 – 07:00
44.7dB






