Model valuation£417,0008 Busby Close
Local market context
21 Bostock Avenue, Northampton, NN1 4LW
Estimated value
£304,000
- Since the 2025 sale (£280,000)+9%
- Against NN1 4LW's recent median (£315,000)-3%
Newest record on this page: November 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.
Property type
Mid terrace
Bedrooms
3
Bathrooms
3
Floor area
152 m²
1636 sq ft
Energy rating
D
Score 58
Council tax
Band C
Tenure
Owner Occupied
About this valuation
How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.
Our estimate
£304,000
- Against its 2025 sale (£280,000)+9%
- Against NN1 4LW's recent median (£315,000)-3%
Your note and figure are shown publicly on this page.
How the estimate is made
The estimate for 21 Bostock Avenue is modelled from its 152 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in NN1 4LW. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
What it's based on
Floor area
152 m² from the EPC lodged in April 2025
Sales of this home
1 sale recorded, the latest in 2025
Recent sales in NN1 4LW
5 sales, median £315,000 (2025–2022)
This page or the full report?
| Data | This page | Full report |
|---|---|---|
| Sales | Latest sale shown: November 2025 | Latest available records, read when you order |
| Valuation | Estimate from the last refresh | Analysed against comparable sales |
| Planning | None on this home | Full history, plus nearby schemes |
| Flood risk | Not shown | Included |
Sales history & valuation
Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.
21 Bostock Avenue valuation sits well clear of the typical sold price in this postcode.
Sales timeline
21 November 2025Most recent
£280,000
Median price across the last 5 sales in NN1 4LW: £315,000 (2025–2022).
Nearby sales in NN1 4LW
26 Bostock Avenue, Northampton, NN1 4LW
Sold Mar 2025
£300,0003 Bostock Avenue, Northampton, NN1 4LW
Sold Dec 2024
£250,00028 Bostock Avenue, Northampton, NN1 4LW
Sold Sept 2022
£330,00012 Bostock Avenue, Northampton, NN1 4LW
Sold Aug 2022
£395,00035 Bostock Avenue, Northampton, NN1 4LW
Sold Aug 2022
£315,000
What this page doesn't show
2 potential issues have already been flagged for 21 Bostock Avenue, Northampton, NN1 4LW. The detail, evidence and what to ask about it are in the Risks Report.
- Signs of HMO activity in the areaIn report
- Larger development activity nearbyIn report
- Flood risk from rivers, sea and surface waterIn report
- Subsidence and ground-stability signalsIn report
- Refusals, enforcement and big schemes nearbyIn report
One time fee only - money back guarantee
About 21 Bostock Avenue
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
21 Bostock Avenue is a three-bedroom mid-terrace house in Northampton (NN1 4LW). It has a recorded floor area of 152 m² (around 1636 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (April 2025) shows a D (score 58), a step below the typical UK home. The rating has held steady at D across 2 certificates since October 2012. Between certificates, window efficiency went from Poor to Average and lighting went from Average to Very Good. The recommended improvements would push it to C (score 80). Other recorded features include a conservatory and a basement. Period features are noted in the property record. Records show the property has been extended at some point in its history.
It changed hands recently, sold November 2025 for £280,000. At 152 m² it's 15.2% larger than the typical home in the postcode (132 m² median across 38 EPCs). On a £-per-square-foot basis, the last sale (£171/sq ft) was about 30.4% above the typical sold price in the postcode.
What this property has
Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.
Inside
- Bedrooms3
- Bathrooms3
- CloakroomYes
- EnsuiteYes
- BasementYes
- ConservatoryYes
Building
- Period featuresYes
- Previously extendedYes
Before you decide
Everything you need to know about 21 Bostock Avenue
The true value, the hidden risks and the full sale history, in one report.
Signs of HMO activity in the areaLarger development activity nearby
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The data behind every report
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
21 Bostock Avenue's carbon output runs well above what efficient homes in the postcode produce.
Current Certificate(1 of 2)
Apr 2025
EPC Rating
A
B
C
D
D58
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
7.5 t/year
Occupancy
Owner Occupied
Certificate validity
Valid until 7 April 2035
Property Improvements
Changes detected from historical EPC data
Apr 2025from Oct 2012
Windows
PoorAverage
Window efficiency improved
Low Energy Lighting
25%100%
More low energy lighting installed
Planning history
Applications and permits filed against 21 Bostock Avenue, Northampton, NN1 4LW, sourced from the PlanIt planning register.
21 Bostock Avenue has no planning applications on record.
65
But the area is active
65 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Versus other Bostock Avenue homes
Four headline reads against 34 similar houses on this street, drawn from the latest EPC and Land Registry data.
21 Bostock Avenue is notably below the street on years held.
Price per m²
£1,842
Street avg £1,703
Floor Area
152 m²
Street avg 150 m²
Habitable Rooms
5 rooms
Street avg 7 rooms
CO₂ Emissions
7.5 t/year
Street avg 7.1 t/year
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Northampton district page.
Crime
571/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Melbourne Street — bus stop.
Closest school
0.2 km
Stimpson Avenue Academy. 30 schools nearby.
Nearest schools
- Stimpson Avenue AcademyPrimary225m
- Barry Primary SchoolPrimary271m
- Vernon Terrace Primary SchoolPrimary482m
- Northampton School for BoysSecondary775m
Nearest stops
- Melbourne StreetBus stop110m
- Billington StreetBus stop122m
- Stimpson Avenue Primary SchoolBus stop280m
- St Edmund's StreetBus stop312m
Most reported crime locally
- Violence & Sexual Offences2,940 reports32%
- Anti-social Behaviour1,893 reports21%
- Shoplifting785 reports9%
- Public Order622 reports7%
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
Modelled day and night-time noise levels around NN1 4LW from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
52.6dB
Night-time· 23:00 – 07:00
42.8dB
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
Get a survey for this property
Level 3 Building Survey
Victorian-eraMid-Terrace HouseEPC DPre-1919 buildExtended multiple times (2+ extensions)Solid (non-cavity) walls
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
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Start your researchHow to read this page
Where every figure above comes from, how current it is and what it can't tell you.
- How the estimate is made
- The estimate for 21 Bostock Avenue is modelled from its 152 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in NN1 4LW. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
- Where sold prices come from
- Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 1 sale is recorded for 21 Bostock Avenue. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
- Reading the EPC
- Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 21 Bostock Avenue was lodged in April 2025 at band D and is valid until April 2035. 2 certificates are on record, which shows how the home has changed.
- Planning records
- Planning applications are collected from local authority registers through PlanIt. None is matched to 21 Bostock Avenue. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
- Area figures
- Crime is police-recorded street-level data over the last 16 months, which places each incident at an approximate point. The 30 schools and 30 stops listed are measured in a straight line from NN1 4LW, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
- Council tax band
- 21 Bostock Avenue is in council tax band C. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
Common questions
The questions buyers, sellers and homeowners most often ask about 21 Bostock Avenue, Northampton, NN1 4LW. Each answer is also embedded as structured data for search engines.
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- Every home in NN1 4LWSold prices, values and energy ratings for the postcode
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