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Independent historical sold-price evidence from HM Land Registry for England and Wales.

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© 2026 UK House Prices. Data sourced from HM Land Registry.

Contains HM Land Registry data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.

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SG3 postcode area house prices

SG3 has an average sold price of £312,292 across 4,674 HM Land Registry transactions covering 184 postcodes. The largest town grouping is Knebworth.

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

Decision summary

SG3 at a glance

SG3 postcode area averages £312,292 across 4,674 completed sales covering 184 postcodes. Check the median, sample depth and nearby postcodes before using the average as a market signal.

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Average £312,292 · Median £322,475 · 4,674 transactions · +5.2% growth · 184 postcodes

Data source
HM Land Registry
Updated July 2026
Sample quality
Usable transaction depth
4,674 sales across 184 postcodes
Median check
£322,475
Median is close to the average
Trend signal
+5.2%
The five-year price movement is +5.2%.
Coverage
184 postcodes
Largest town: Knebworth
Data source
HM Land Registry
Sample quality
Usable transaction depth
Median check
£322,475
Check asking price

SG3 Postcode Area Overview

The SG3 postcode area averages £312,292 across 4,674 registered sales — below the national average of £396,803 by -21.3%. The median price across constituent postcodes is £322,475, closely tracking the average. 184 postcodes cover this area, with data sourced from HM Land Registry Price Paid Records. The principal town is Knebworth, which accounts for the largest share of transactions in this postcode area. The five-year price movement is +5.2%, in line with national growth.

Postcodes in SG3

SG3 6LX£176,773 average282 salesSG3 6QT£183,975 average175 salesSG3 6AL£117,415 average143 salesSG3 6EA£155,825 average141 salesSG3 6DT£157,445 average133 salesSG3 6DE£346,930 average118 salesSG3 6DX£156,582 average117 salesSG3 6HP£181,162 average112 salesSG3 6BT£195,092 average94 salesSG3 6EU£320,103 average94 salesSG3 6AB£157,164 average90 salesSG3 6NU£288,863 average90 salesSG3 6DB£281,329 average74 salesSG3 6BU£204,810 average71 salesSG3 6HE£132,117 average70 salesSG3 6JW£271,012 average68 salesSG3 6BQ£196,107 average61 salesSG3 6JX£350,363 average60 salesSG3 6LT£147,179 average60 salesSG3 6BZ£222,930 average58 salesSG3 6AH£518,859 average57 salesSG3 6EE£345,158 average54 salesSG3 6HF£126,089 average52 salesSG3 6AS£263,299 average51 salesSG3 6AN£243,297 average46 salesSG3 6BJ£312,123 average46 salesSG3 6DF£110,789 average46 salesSG3 6PR£381,131 average45 salesSG3 6EL£279,837 average43 salesSG3 6BH£329,768 average42 salesSG3 6NL£1,015,881 average42 salesSG3 6NN£533,997 average42 salesSG3 6NP£560,095 average42 salesSG3 6DA£290,770 average41 salesSG3 6TQ£218,108 average41 salesSG3 6BG£306,034 average38 salesSG3 6EH£244,196 average38 salesSG3 6HB£387,657 average38 salesSG3 6SZ£366,556 average36 salesSG3 6FR£577,884 average35 salesSG3 6JH£245,164 average35 salesSG3 6TL£513,313 average35 salesSG3 6BN£340,141 average34 salesSG3 6JZ£305,069 average32 salesSG3 6DU£374,123 average31 salesSG3 6PG£547,613 average31 salesSG3 6RR£444,581 average31 salesSG3 6QN£333,862 average30 salesSG3 6LP£166,860 average29 salesSG3 6AP£227,725 average28 salesSG3 6DD£70,625 average28 salesSG3 6HW£317,940 average28 salesSG3 6SX£251,250 average28 salesSG3 6TD£396,941 average28 salesSG3 6TA£295,558 average26 salesSG3 6BB£122,462 average25 salesSG3 6ED£282,604 average24 salesSG3 6HS£177,193 average23 salesSG3 6PH£577,929 average23 salesSG3 6DJ£435,280 average22 salesSG3 6JE£1,674,029 average22 salesSG3 6EQ£623,238 average21 salesSG3 6BE£315,248 average20 salesSG3 6HG£847,074 average20 salesSG3 6NS£581,575 average20 salesSG3 6SL£381,808 average20 salesSG3 6ST£574,888 average20 salesSG3 6TF£323,337 average20 salesSG3 6TG£343,145 average20 salesSG3 6AW£620,447 average19 salesSG3 6BS£364,652 average19 salesSG3 6JF£255,471 average19 salesSG3 6JY£196,229 average19 salesSG3 6DQ£285,597 average18 salesSG3 6RP£500,250 average18 salesSG3 6SE£590,722 average18 salesSG3 6SU£455,474 average18 salesSG3 6DG£471,468 average17 salesSG3 6DY£182,741 average17 salesSG3 6LD£217,524 average17 sales

Compare postcodes in SG3

Use the location comparison tool to put SG3 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 SG3 area

Professional valuers use recent sold prices as comparable evidence. In the SG3 area, the median sold price is £322,475 and the average is £312,292, based on 4,674 HM Land Registry transactions. Over five years, prices have moved +5.2%, which affects how comparables from earlier years should be weighted.

Typical comparable range: £274,000–£371,000(±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.

Check an asking price against local evidence

Frequently asked questions

What is the average sold price in the SG3 postcode area?

The average sold price in SG3 is £312,292, based on 4,674 HM Land Registry transactions across 184 postcodes.

How does SG3 compare to the national average?

SG3 is -21.3% below the England and Wales national average of £396,803.

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 SG3 area cover?

The SG3 postcode area covers 184 individual postcodes with 4,674 registered sales. The largest town grouping is Knebworth.

More about SG3

Knebworth townBrowse districtsMarket reportsMethodologyCompare locationsArea guide: SG3

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.