40 Portland Place, Northampton, NN1 4DH
About 40 Portland Place
40 Portland Place is a one-bedroom semi-detached house in Northampton (NN1 4DH). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to 1967-1975 and council tax band A. At 47 m² this is the 9th smallest of 61 units on EPC record in the building, where floor areas span 34–125 m². The building's EPC ratings span E to C across 61 units on file. Other recorded features include a balcony. The latest certificate (March 2023) shows a D (score 61), on the cusp of jumping into the C band.
Most recent transfer was April 2025 at £125,000 — fresh data. Across 1995–2025, sale prices on this property compounded at 5.8% per year. On a £-per-square-foot basis, the last sale (£247/sq ft) was about 155.1% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms1
Outside
- BalconyYes
Building
- RefurbishedYes
Everything you need to know about 40 Portland Place
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
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Planning history
40 Portland Place has no planning applications on record.
But the area is active
65 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Price for 40 Portland Place has grown more than fourfold since the 1995 starting point.
£130,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.8% per year over 29 years.
£125,000
Growth on file: 5.8% per year over 29 years.
Sales timeline
16 April 2025Most recent
£125,000
+51.5%over 17 years19 December 2007
£82,500
+243.8%over 12 years31 October 1995
£24,000
Median price across the last 5 sales in NN1 4DH: £175,000 (2022–2019).
Nearby sales in NN1 4DH
Versus other Portland Place homes
40 Portland Place outperforms the street on price per m² by a wide margin.
Price per m²
£2,660
Street avg £1,331
Floor Area
47 m²
Street avg 60 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
2.6 t/year
Street avg 2.3 t/year
Everything you need to know about 40 Portland Place
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee

Similar properties nearby
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
11/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Grove Road — bus stop.
Closest school
0.4 km
Vernon Terrace Primary School. 28 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
52.9dB

Night-time· 23:00 – 07:00
42.5dB






