House Price Finder
Town Profile 1 postcode area

Knebworth

Hertfordshire · 4,690 properties sold since 1995

Postcodes: SG3
Average Property Value
£485,921
↑ 11.1% YoY

Market analysis

Homes in Knebworth, Hertfordshire sell for an average of £485,921 — 79% above the UK average of £271,295. The median sold price is £430,000. In 2025, the most recent complete year, prices rose 11.1% year on year, from £492,177 to £546,722. Since 2015, average values in Knebworth have grown by 35%.

Terraced houses are the most commonly sold property type in Knebworth, making up 28% of transactions. Knebworth spans 1 postcode area, with 4,690 sales registered since 1995.

£485,921
Average
£430,000
Median
£2k
Lowest
£4.5M
Highest

Liveability Score

Aggregated from 1 postcode area

Average
68 / 100
Education 75
Connectivity 80
Market Stability 76
Family-Friendly 36

Price Trend

2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
£437k £547k

Property Types

Terraced 28%
Semi-Detached 25%
Detached 25%
Flat 21%
Other 1%
4,690 total sales across 5 property types

Market Summary

£302k
Lower Quartile
£430k
Median
£580k
Upper Quartile
Price Distribution £2k – £4.5M

Yearly Price History

Year Average Median Sales Change
2026 (YTD) £446,833 £408,500 36 ↓ 18.3%
2025 £546,722 £471,250 150 ↑ 11.1%
2024 £492,177 £448,500 131 ↓ 0.4%
2023 £494,308 £415,000 83 ↑ 8.9%
2022 £454,082 £413,500 124 ↓ 6.8%
2021 £487,206 £464,775 192 ↑ 7.2%
2020 £454,695 £370,250 177 ↓ 14.6%
2019 £532,207 £410,000 129 ↑ 14.3%
2018 £465,682 £408,000 111 ↓ 33.7%
2017 £702,744 £387,450 129 ↑ 60.8%
2016 £437,025 £380,000 150 ↑ 7.9%
2015 £405,183 £325,000 127

Postcode Areas in Knebworth

Knebworth covers 1 postcode area. Click any one for detailed property data, schools, crime stats, and demographics.

SG3

Useful guides

Stamp Duty Calculator

Calculate SDLT on your purchase — 2026/27 rates.

First-Time Buyer Guide

Everything you need to know about buying your first home in 2026.

What's Your House Worth?

Free ways to estimate your property's value using sold price data.

Streets in Knebworth

The 60 busiest streets in Knebworth by number of recorded sales. Each page lists every property on the street and what it last sold for.

Carvers Croft 284 Wadnall Way 281 Pondcroft Road 238 Kerr Close 235 Twin Foxes 176 Park Lane 173 Orchard Way 165 Woodstock 142 London Road 132 Haygarth 122 Broom Grove 120 Peters Way 113 Stevenage Road 107 Gun Lane 100 Lowe House 93 New Close 90 St Martins Road 87 New Road 70 Wolves Mere 68 Watton Road 66 Mardleybury Road 64 Nutcroft 61 Brookbridge Lane 54 Constance Place 54 Westland Road 51 Oakfields Avenue 42 Stockens Green 42 Deards End Lane 42 Milestone Road 41 Bellamy Close 38 Stockens Dell 38 Dunnock Close 38 Bramfield Road 37 Datchworth Green 35 Gun Road Gardens 35 Longmead 35 Sayer Way 34 Gipsy Lane 34 Garden Road 32 Bury Lane 31 Raffin Park 31 Deards Wood 31 The Green 30 Deanscroft 30 Hawkins Hall Lane 29 Mardleybury Court 29 Hornbeam Spring 29 Meadow Close 28 Great Lawne 28 Station Road 28 Hay Wains 28 Abbots Close 26 Milk Churn Way 26 Wickfield 23 Oak Tree Gardens 21 Bridge Road 20 Raffin Green Lane 20 Oakfields Road 20 Manor Farm Stables 20 Garden Close 19

Frequently asked questions about Knebworth

What is the average house price in Knebworth?
The average sold price in Knebworth, Hertfordshire is £485,921, across 893 sales since 2020. The median is £430,000 — the middle price, which a few very expensive sales cannot pull upward.
Are house prices in Knebworth rising or falling?
In 2025, the last complete year, the average sold price in Knebworth was £546,722, up 11.1% on 2024's £492,177.
How many properties have sold in Knebworth?
HM Land Registry has recorded 4,690 sales in Knebworth since 1995, across 1 postcode area (SG3). The most common property type is terraced.

About this data

Averages and medians for Knebworth cover the 893 sales registered since 2020, so they describe the current market rather than three decades of it. The 4,690 figure is every sale since records begin in 1995, and the yearly chart uses each year's own sales. Prices are what buyers actually paid, as registered with HM Land Registry — not asking prices or estimates. Scotland and Northern Ireland are not in this dataset; see Scotland and Northern Ireland.

Source: HM Land Registry Price Paid Data · Crown copyright 2026 · Open Government Licence v3.0