When did 21 Deal Street, NN1 3HS last change hands?

21 Deal Street, NN1 3HS last sold for £68,000 in March 2014, around 12 years ago. Land Registry has 4 sales on record going back to £20,000 in January 1996. Source: HM Land Registry.

What is the price history for 21 Deal Street, NN1 3HS?

Across 4 sales between January 1996 and March 2014, 21 Deal Street, NN1 3HS rose from £20,000 to £68,000, a change of £48,000. That works out to roughly +7% per year compounded over 18 years. Source: HM Land Registry.

How energy efficient is 21 Deal Street, NN1 3HS?

The current EPC rating for 21 Deal Street, NN1 3HS is C with a score of 78 out of 100, lodged in June 2026. It has improved from a D recorded in February 2011. Source: EPC Register.

What is the floor area of 21 Deal Street, NN1 3HS?

21 Deal Street, NN1 3HS has a recorded floor area of 56 m² (603 sq ft), around 56 m² per bedroom. That makes it about 11% larger than the median EPC-recorded property in NN1 3HS. Source: EPC Register.

How is 21 Deal Street, NN1 3HS heated?

The latest EPC at 21 Deal Street, NN1 3HS records mains gas as the main heating fuel. Source: EPC Register.

What council tax band is 21 Deal Street, NN1 3HS?

21 Deal Street, NN1 3HS is in council tax band A. That sits at the lower end of the A-H ladder, typically reflecting smaller floor areas or lower 1991 valuations.

Where is 21 Deal Street, NN1 3HS located?

21 Deal Street, NN1 3HS sits in Northampton. It falls within the NN1 postcode district.

Is 21 Deal Street, NN1 3HS in a safe area?

Police records around 21 Deal Street, NN1 3HS show an average of 571 reported crimes per month over the last 16 months. Violent crime makes up roughly 32% of reports, the most common category. The overall trend is broadly stable. Source: Police UK.

Which schools serve 21 Deal Street, NN1 3HS?

The closest primary school to 21 Deal Street, NN1 3HS is Castle Academy (237m), one of 25 primaries within walking distance. The closest secondary is Northampton International Academy (251m), with 4 secondaries in the surrounding area.

How well connected is 21 Deal Street, NN1 3HS?

The closest bus stop to 21 Deal Street, NN1 3HS is NIA Academy, 181m away. The nearest bus option is Northampton Bus Interchange, 589m away.

Calculators

Featured

UK House Price Map

30 years of UK sold prices mapped by postcode district.

Postcode-level detail
Compare areas side by side

Open the map

21 Deal Street, Northampton, NN1 3HS

4 sales on record

Property type

Mid terrace

Floor 02

Bedroom

Floor area

56 m²

603 sq ft

Energy rating

Score 78

Council tax

Band A

Tenure

Owner Occupied

Get directions

Overview

About 21 Deal Street

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

21 Deal Street is a one-bedroom mid-terrace house in Northampton (NN1 3HS). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1976-1982 and council tax band A. At 56 m² this is the 31st smallest of 36 units on EPC record in the building, where floor areas span 44–97 m². The building's EPC ratings span D to C, with this unit at the top. Other recorded features include a balcony. The latest certificate (June 2026) shows a C (score 78), near the top of the C band. When first surveyed in February 2011 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average, hot-water efficiency went from Poor to Good and lighting went from Average to Good; while window efficiency dropped from Good to Poor. This certificate was lodged in the last six months, so the rating reflects current condition.

Across 1996–2014, sale prices on this property compounded at 7% per year. Today's modelled estimate of £117,000 sits 72.1% above the 2014 sale of £68,000. On a £-per-square-foot basis, the last sale (£113/sq ft) was about 28.1% below the postcode norm. Last sold in March 2014, so it's been off the market for around 12 years. Across the public record there are 4 sales, relatively high churn for a single property.

Specifications

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

Bedrooms1

Outside

ParkingYes
BalconyYes

Building

Heating systemGas
RefurbishedYes

Before you decide

Everything you need to know about 21 Deal Street

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 · from £14.99

One time fee only - money back guarantee

The data behind every report

Energy

Energy performance

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

21 Deal Street's carbon output is low for the local stock.

Current Certificate(1 of 2)

Jun 2026

EPC Rating

C78

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Poor

CO2 Emissions

1.3 t/year

Occupancy

Owner Occupied

Certificate validity

Valid until 13 June 2036

9 years remaining

Property Improvements

Changes detected from historical EPC data

Jun 2026from Feb 2011

EPC improved fromD59toC78

Heating Controls

Prog + StatFull

Heating controls upgraded for better temperature management

Hot Water

Main (No Stat)Main System

Hot water system upgraded

Wall Insulation

UninsulatedPartial Insulation

Wall insulation upgraded

Low Energy Lighting

33%100%

More low energy lighting installed

Get a survey for this property

Level 2 HomeBuyer Report

Late 20th century2nd Floor FlatEPC C

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

From £495 · Includes VAT

Planning

Planning history

Applications and permits filed against 21 Deal Street, Northampton, NN1 3HS, sourced from the PlanIt planning register.

21 Deal Street has no planning applications on record.

But the area is active

39 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.

21 Deal Street has more than tripled in price since its earliest registered sale in 1996.

Current estimate

£117,000

Modelled from EPC, postcode comparables and a sale-price growth of 7.0% per year over 18 years.

See how we calculated this

Last sold (2014)

£68,000

Growth on file: 7.0% per year over 18 years.

Sales timeline

28 March 2014Most recent
£68,000
-6.8%over 5 years
6 May 2008
£73,000
+0.7%over 2 years
14 August 2005
£72,500
+262.5%over 9 years
22 January 1996
£20,000

Median price across the last 5 sales in NN1 3HS: £61,000 (2025–2000).

Nearby sales in NN1 3HS

On the street

Versus other Deal Street homes

Four headline reads against 30 similar flats on this street, drawn from the latest EPC and Land Registry data.

21 Deal Street outperforms the street on floor area by a wide margin.

EPC Rating

78 (C)

Street avg 74 (C)

Above

Floor Area

56 m²

Street avg 51 m²

Strongly above

CO₂ Emissions

1.3 t/year

Street avg 1.7 t/year

Strongly above

Habitable Rooms

2 rooms

Street avg 2 rooms

On par

Before you decide

Everything you need to know about 21 Deal Street

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 · from £14.99

One time fee only - money back guarantee

The data behind every report

Comparables

Similar properties nearby

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

£124k

1 Deal Street

NN1 3HS

1 bed1 bath

£126k

1 Clare Street

NN1 3JG

1 bed

£169k

10 Austin Street

NN1 3EY

1 bed4 bath

£276k

1 Hervey Street

NN1 3QL

1 bed2 bath

£168k

1 Carey Street

NN1 3QN

2 bed

£171k

1 Alcombe Terrace

NN1 3LD

2 bed

£171k

1 Connaught Street

NN1 3BP

2 bed

£183k

1 4 The Light Box, Duke Street

NN1 3BA

2 bed1 bath

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

571/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

NIA Academy — bus stop.

Closest school

0.2 km

Castle Academy. 29 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 NN1 3HS from Defra's strategic mapping. The pin marks this postcode's centroid.

Daytime· 07:00 – 23:00

53.3dB

Low

Night-time road noise heatmap for NN1 3HS

Night-time· 23:00 – 07:00

43.2dB

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 21 Deal Street, Northampton, NN1 3HS. Each answer is also embedded as structured data for search engines.