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18 Semilong Road, Northampton, NN2 6BH

3 sales on record
Property type
Mid terrace
Habitable rooms
7
From EPC
Floor area
152 m²
1636 sq ft
Energy rating
D
Score 62
Council tax
Band B
Tenure
Private Rental
Overview

About 18 Semilong Road

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

18 Semilong Road is a mid-terrace house in Northampton (NN2 6BH). It has a recorded floor area of 152 m² (around 1636 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (September 2025) shows a D (score 62), on the cusp of jumping into the C band. When first surveyed in March 2015 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Average; while window efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 77).

Across 1997–2019, sale prices on this property compounded at 7% per year. Today's modelled estimate of £265,000 is 12.3% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£144/sq ft) was about 59.3% above the typical sold price in the postcode. Sold October 2019 for £236,050.

Before you decide

Everything you need to know about 18 Semilong Road

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the areaLarger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

18 Semilong Road's carbon output runs well above what efficient homes in the postcode produce.

Current Certificate(1 of 2)
Sept 2025

EPC Rating

A
B
C
D
D62
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Poor
CO2 Emissions
6.1 t/year
Occupancy
Rented

Property Improvements

Changes detected from historical EPC data

Sept 2025from Mar 2015
EPC improved fromE54toD62
Roof Insulation
UninsulatedWell Insulated

Loft insulation installed or upgraded to 250mm+

Low Energy Lighting
33%89%

More low energy lighting installed

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraMid-Terrace HouseEPC DPre-1919 buildSolid (non-cavity) walls

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

Planning history

Applications and permits filed against 18 Semilong Road, Northampton, NN2 6BH, sourced from the PlanIt planning register.

18 Semilong Road has no planning applications on record.

37

But the area is active

37 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

18 Semilong Road has more than quadrupled in price since its earliest registered sale in 1997.

Current estimate

£265,000

Modelled from EPC, postcode comparables and a sale-price growth of 7.0% per year over 22 years.

See how we calculated this
Last sold (2019)

£236,050

Growth on file: 7.0% per year over 22 years.

Sales timeline

  1. 24 October 2019Most recent

    £236,050

    +31.1%over 4 years

  2. 1 April 2015

    £180,000

    +239.6%over 17 years

  3. 25 September 1997

    £53,000

Median price across the last 5 sales in NN2 6BH: £165,000 (2022–2000).

On the street

Versus other Semilong Road homes

Four headline reads against 5 similar houses on this street, drawn from the latest EPC and Land Registry data.

18 Semilong Road outperforms the street on co₂ emissions by a wide margin.

Price per m²

£1,553

Street avg £1,382

Above

Floor Area

152 m²

Street avg 144 m²

Above

Habitable Rooms

7 rooms

Street avg 6 rooms

Above

CO₂ Emissions

6.1 t/year

Street avg 7.2 t/year

Strongly above
Before you decide

Everything you need to know about 18 Semilong Road

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the areaLarger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£260k

1 Agnes Road

NN2 6EU

£274k

1 Brockton Street

NN2 6EQ

3 bed2 bath
£283k

1 Edinburgh Road

NN2 6PH

3 bed2 bath
£291k

1 Cecil Road

NN2 6PG

£231k

1 Essex Terrace, Essex Street

NN2 6DP

3 bed
£228k

1 Garfield Close

NN2 6NF

3 bed
£211k

1 Cranbrook Road

NN2 6JT

2 bed1 bath
£203k

1 Balfour Road

NN2 6JR

Area

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.
Full Northampton report

Crime

27/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

Marriott Street — bus stop.

Closest school

0.2 km

Northampton International Academy. 30 schools nearby.

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around NN2 6BH from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for NN2 6BH

Daytime· 07:00 – 23:00

52.4dB

Low
Night-time road noise heatmap for NN2 6BH

Night-time· 23:00 – 07:00

43.0dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 18 Semilong Road, Northampton, NN2 6BH. Each answer is also embedded as structured data for search engines.