UK House Prices

SG3 postcode area house prices

SG3 has an average sold price of £315,075 across 4,726 HM Land Registry transactions covering 185 postcodes. The largest town grouping is Knebworth.

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

SG3 at a glance

SG3 postcode area averages £315,075 across 4,726 completed sales covering 185 postcodes. Check the median, sample depth and nearby postcodes before using the average as a market signal.

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Average £315,075 · Median £320,000 · 4,726 transactions · +7.7% growth · 185 postcodes

Data source
HM Land Registry
Updated October 2026
Sample quality
Usable transaction depth
4,726 sales across 185 postcodes
Median check
£320,000
Median is close to the average
Trend signal
+7.7%
The five-year price movement is +7.7%.
Coverage
185 postcodes
Largest town: Knebworth

SG3 Postcode Area Overview

The SG3 postcode area averages £315,075 across 4,726 registered sales — below the national average of £400,016 by -21.2%. The median price across constituent postcodes is £320,000, closely tracking the average. 185 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 +7.7%, in line with national growth.

Postcodes in SG3

SG3 6LX£180,630 average286 salesSG3 6QT£184,464 average176 salesSG3 6AL£118,301 average144 salesSG3 6EA£157,052 average142 salesSG3 6DT£157,445 average133 salesSG3 6DE£349,703 average119 salesSG3 6DX£156,871 average119 salesSG3 6HP£183,249 average113 salesSG3 6EU£318,656 average97 salesSG3 6BT£195,092 average94 salesSG3 6AB£158,349 average91 salesSG3 6NU£292,997 average91 salesSG3 6DB£281,329 average74 salesSG3 6BU£208,528 average72 salesSG3 6HE£132,117 average70 salesSG3 6JW£271,012 average68 salesSG3 6BQ£198,509 average62 salesSG3 6JX£350,363 average60 salesSG3 6LT£147,179 average60 salesSG3 6BZ£222,930 average58 salesSG3 6AH£518,859 average57 salesSG3 6EE£344,155 average55 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£282,909 average44 salesSG3 6FR£659,941 average44 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 6HB£385,804 average41 salesSG3 6TQ£218,108 average41 salesSG3 6BG£306,034 average38 salesSG3 6EH£244,196 average38 salesSG3 6SZ£371,514 average37 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 6LP£170,365 average30 salesSG3 6QN£333,862 average30 salesSG3 6AP£231,941 average29 salesSG3 6HW£327,321 average29 salesSG3 6SX£260,517 average29 salesSG3 6DD£70,625 average28 salesSG3 6TD£396,941 average28 salesSG3 6TA£308,315 average27 salesSG3 6BB£122,462 average25 salesSG3 6ED£292,300 average25 salesSG3 6DJ£447,224 average23 salesSG3 6HS£177,193 average23 salesSG3 6PH£577,929 average23 salesSG3 6JE£1,674,029 average22 salesSG3 6EQ£623,238 average21 salesSG3 6TF£358,511 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 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 6DY£185,617 average18 salesSG3 6RP£500,250 average18 salesSG3 6SE£590,722 average18 salesSG3 6SU£455,474 average18 salesSG3 6DG£471,468 average17 salesSG3 6FF£506,430 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 £320,000 and the average is £315,075, based on 4,726 HM Land Registry transactions. Over five years, prices have moved +7.7%, which affects how comparables from earlier years should be weighted.

Typical comparable range: £272,000–£368,000(±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 SG3 postcode area?

The average sold price in SG3 is £315,075, based on 4,726 HM Land Registry transactions across 185 postcodes.

How does SG3 compare to the national average?

SG3 is -21.2% below the England and Wales national average of £400,016.

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 185 individual postcodes with 4,726 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.