NN1 postcode area house prices

NN1 has an average sold price of £157,343 across 22,882 HM Land Registry transactions covering 586 postcodes. The largest town grouping is Northampton.

Updated August 2026Records through July 2026HM Land Registry31+ million records

NN1 at a glance

NN1 postcode area averages £157,343 across 22,882 completed sales covering 586 postcodes. Check the median, sample depth and nearby postcodes before using the average as a market signal.

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Average £157,343 · Median £137,500 · 22,882 transactions · +31.0% growth · 586 postcodes

Data source: HM Land Registry; Updated August 2026
Sample quality: High transaction depth; 22,882 sales across 586 postcodes
Median check: £137,500; Mean and median differ — inspect local mix
Trend signal: +31.0%; The five-year price movement is +31.0%.
Coverage: 586 postcodes; Largest town: Northampton

NN1 Postcode Area Overview

The NN1 postcode area averages £157,343 across 22,882 registered sales — below the national average of £398,894 by -60.6%. The median price across constituent postcodes is £137,500, suggesting higher-value sales pull the mean upward. 586 postcodes cover this area, with data sourced from HM Land Registry Price Paid Records. The principal town is Northampton, which accounts for the largest share of transactions in this postcode area. The five-year price movement is +31.0%, in line with national growth.

Postcodes in NN1

NN1 5EJ£95,528 average185 sales NN1 5EU£102,912 average171 sales NN1 3QR£128,708 average162 sales NN1 1UG£88,205 average161 sales NN1 3LW£109,217 average154 sales NN1 3BA£147,877 average153 sales NN1 4PG£119,114 average147 sales NN1 1ES£124,087 average146 sales NN1 3PU£163,782 average143 sales NN1 4HS£130,985 average143 sales NN1 5NJ£118,311 average142 sales NN1 2HQ£117,884 average141 sales NN1 2PE£91,076 average141 sales NN1 3EP£87,194 average138 sales NN1 4LN£162,302 average138 sales NN1 4NU£72,268 average138 sales NN1 5NB£155,226 average138 sales NN1 4JJ£126,648 average137 sales NN1 4PQ£114,749 average135 sales NN1 5ER£126,970 average134 sales NN1 5JE£149,579 average134 sales NN1 5HP£125,360 average130 sales NN1 4LJ£160,404 average129 sales NN1 4QY£128,984 average129 sales NN1 2HS£122,685 average128 sales NN1 5RX£151,838 average127 sales NN1 4HX£104,500 average126 sales NN1 3EX£100,416 average125 sales NN1 4JP£135,081 average124 sales NN1 5JX£111,324 average121 sales NN1 4PE£137,209 average120 sales NN1 4NA£125,242 average118 sales NN1 3LE£97,867 average117 sales NN1 4PW£114,189 average117 sales NN1 5RN£265,801 average117 sales NN1 2TP£66,145 average116 sales NN1 3ER£101,827 average114 sales NN1 5JL£142,943 average113 sales NN1 4QS£134,938 average111 sales NN1 4RR£90,298 average111 sales NN1 4LU£111,309 average110 sales NN1 4RW£175,375 average110 sales NN1 5NQ£125,151 average110 sales NN1 3ND£102,849 average109 sales NN1 4PH£147,723 average109 sales NN1 4RA£157,072 average109 sales NN1 4HU£112,563 average107 sales NN1 4NZ£89,192 average107 sales NN1 3LN£103,601 average106 sales NN1 3NB£109,410 average106 sales NN1 5LZ£157,618 average106 sales NN1 1TY£155,543 average105 sales NN1 2PH£95,303 average105 sales NN1 4PF£113,193 average105 sales NN1 5NA£179,011 average105 sales NN1 3NE£89,853 average103 sales NN1 3QE£127,001 average103 sales NN1 5ND£177,137 average103 sales NN1 1DQ£130,453 average102 sales NN1 3QT£130,067 average102 sales NN1 4JS£131,787 average102 sales NN1 4LQ£152,544 average102 sales NN1 5JZ£93,472 average102 sales NN1 5NG£145,131 average101 sales NN1 4RB£158,675 average100 sales NN1 5EP£107,471 average100 sales NN1 5HR£119,606 average99 sales NN1 3QU£133,900 average98 sales NN1 4RN£140,842 average98 sales NN1 5JS£147,819 average97 sales NN1 2PG£86,724 average96 sales NN1 4PJ£120,376 average96 sales NN1 5HN£123,709 average95 sales NN1 3LL£89,744 average94 sales NN1 4LW£182,048 average94 sales NN1 5JQ£133,467 average94 sales NN1 1LN£168,024 average92 sales NN1 4LP£178,281 average92 sales NN1 3LF£118,437 average91 sales NN1 3LR£114,111 average91 sales

Compare postcodes in NN1

Use the location comparison tool to put NN1 postcodes beside other postcode areas, towns or districts before narrowing your shortlist.

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Property valuation guide

Estimate a property value in the NN1 area

Professional valuers use recent sold prices as comparable evidence. In the NN1 area, the median sold price is £137,500 and the average is £157,343, based on 22,882 HM Land Registry transactions. Over five years, prices have moved +31.0%, which affects how comparables from earlier years should be weighted.

Typical comparable range: £117,000–£158,000(±15% from median)

These are historical completed-sale prices — not a formal valuation, asking price or investment advice. Use them to sense-check an asking price or set expectations before instructing a surveyor.

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Frequently asked questions

What is the average sold price in the NN1 postcode area?

The average sold price in NN1 is £157,343, based on 22,882 HM Land Registry transactions across 586 postcodes.

How does NN1 compare to the national average?

NN1 is -60.6% below the England and Wales national average of £398,894.

Are these figures valuations or asking prices?

No. These are historical completed sale prices from HM Land Registry Price Paid Data. They are not current valuations, asking prices or investment advice.

How many postcodes does the NN1 area cover?

The NN1 postcode area covers 586 individual postcodes with 22,882 registered sales. The largest town grouping is Northampton.

More about NN1

Northampton town Browse districts Market reports Methodology Compare locations Area guide: NN1

About this data

All sold price figures on this page come from HM Land Registry Price Paid Data for England and Wales, published under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right. These are historical completed sale prices — they are not current valuations, not forecasts and not investment advice. Past sale prices do not guarantee future values. Always seek independent professional advice before making property or financial decisions. Read the full methodology for details on data cleaning, grouping and limitations.