AREA REPORT · NORTH HERTFORDSHIRE SG3

SG3.

North Hertfordshire

SG3 is an outcode in North Hertfordshire, covering the neighbourhoods of Knebworth, Codicote & Kimpton, Woolmer Green, Oaklands & Digswell, Datchworth, Walkern & Cottered and Watton-at-Stone, Bramfield & Bayford. Over the last 12 months 73 properties changed hands — a median of £263k for flats (£4,265/sqm) and £510k for houses (£5,389/sqm). Housing stock peaks at EPC band C.

Recorded dwellings
2,408
residential addresses we hold records for
Across
1
sectors — see breakdown below
Sales
12 month
3 year
Flats
16
73
Houses
57
241
Recorded transactions across the area.
Median sale price
12 month
3 year
Flats
£263k
n = 16
£278k
n = 73
Houses
£510k
n = 57
£512k
n = 241
Median sale price across the window.
Median £/sqm
12 month
3 year
Flats
£4,265
n = 16
£4,592
n = 71
Houses
£5,389
n = 57
£5,174
n = 238
Typical price per square metre, where floor area is available.
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PRICE MATRIX
Sales by window, type, and floor area.
Headline price
Mean
Houses
·Holding
−0.5% vs 12m
−0.9% vs 3y
£300k£600k£512k£510k£508k3Yn=24112Mn=576Mn=14
Flats
Softening
−2.9% vs 12m
−8.1% vs 3y
£155k£310k£278k£263k£255k3Yn=7312Mn=166Mn=5
Bar height = median sale price. Tick = mean. Trend word reads the joint state of the 6m-vs-12m and 6m-vs-3y tiers.
Size-normalised — £ per sqm
Mean
Houses
·Plateauing
+1.5% vs 12m
+5.7% vs 3y
£0£2,950£5,900£5,174£5,389£5,4693Yn=23812Mn=576Mn=14
Flats
Softening
−1.2% vs 12m
−8.2% vs 3y
£0£2,450£4,900£4,592£4,265£4,2153Yn=7112Mn=166Mn=5
From EPC-matched floor area. Hatched bars mark windows where fewer than 60% of sales matched a certificate.
Show numbers
Houses · 6m
Avg £
£557k
n=14
Median £
£508k
n=14
Avg £/sqm
£5,571
n=14
Median £/sqm
£5,469
n=14
Houses · 12m
Avg £
£571k
n=57
Median £
£510k
n=57
Avg £/sqm
£5,420
n=57
Median £/sqm
£5,389
n=57
Houses · 3y
Avg £
£557k
n=241
Median £
£512k
n=241
Avg £/sqm
£5,243
n=238
Median £/sqm
£5,174
n=238
Flats · 6m
Avg £
£250k
n=5
Median £
£255k
n=5
Avg £/sqm
£4,107
n=5
Median £/sqm
£4,215
n=5
Flats · 12m
Avg £
£257k
n=16
Median £
£263k
n=16
Avg £/sqm
£4,240
n=16
Median £/sqm
£4,265
n=16
Flats · 3y
Avg £
£292k
n=73
Median £
£278k
n=73
Avg £/sqm
£4,553
n=71
Median £/sqm
£4,592
n=71
PRICE + VOLUME · 25Y
Medians and monthly sales, 2001–present.
£72k£323k£574k20052010201520202025Median house · 12m smoothedMedian flat · 12m smoothedSales volume (monthly)
EPC · 25Y
Certificates issued, by band.
Median EPC score
69
Median potential
82
01723442010201520202025
A
B
C
D
E
F
G
COUNCIL TAX
Band distribution.
Column width shows the number of properties in each council tax band. Colour shows the composition within that band.
Flats/maisonettes
Terraced
Bungalows
Other/unknown
Band A
193
Flats/maisonettes
Bungalows
Band B
465
Flats/maisonettes
Terraced
Bungalows
Band C
773
Flats/maisonettes
Terraced
Semi-detached
Band D
1,043
Terraced
Semi-detached
Detached
Bungalows
Band E
577
Semi-detached
Detached
Bungalows
Band F
717
Detached
Band G
563
Detached
Band H
85
Band I
0
Flats/maisonettes
Terraced houses
Semi-detached houses
Detached houses
Bungalows
Other/unknown
Property type totals
Flats/maisonettes
852
19%
Terraced houses
924
20%
Semi-detached houses
1,010
22%
Detached houses
1,119
25%
Bungalows
515
11%
Other/unknown
106
2.3%
AMENITIES
Transport access and schools.
Counts of public transport stop points and schools inside the outcode (or within ~100m of the boundary). Drill into a sector for the full stop-by-stop list.
Rail stations
1
Metro & tram
0
Bus & coach
0
Bus stops
39
Schools
3
SECTORS
Drill down to sector.
Drill in
Open the full report for any SG3 sector.
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Continue with email
SG3 6
Sales314
House£512k
Flat£278k
COVERAGE
Neighbourhoods and wards.
Neighbourhoods (MSOA)
4 · click column to sort
Knebworth, Codicote & Kimpton
2,512
2,949
Woolmer Green, Oaklands & Digswell
643
1,059
Datchworth, Walkern & Cottered
396
451
Watton-at-Stone, Bramfield & Bayford
13
15
Wards
4 · click column to sort
Knebworth
2,512
2,949
Welwyn East
643
1,059
Aston, Datchworth & Walkern
396
451
Hertford Rural
13
15
NEARBY OUTCODES
Nearby outcodes.
FAQ

SG3 property data — common questions

What is the average house price in North Hertfordshire (SG3)?
Over the last 12 months the median house sale price in SG3 (North Hertfordshire) was £510k, with an average of £571k, from 57 recorded sales (HM Land Registry).
How much do flats cost in SG3?
The median flat sale price in SG3 over the last 12 months was £263k (about £4,265 per square metre), from 16 recorded sales.
What is the price per square metre in SG3?
Typical sale prices per square metre in SG3 are £5,389 for houses and £4,265 for flats, where floor area is recorded on the energy certificate.
What EPC rating do homes in SG3 have?
Homes in SG3 most commonly hold EPC band C, with a median current energy-efficiency score of 69 (a potential of 82 after improvements).
How many properties sold in SG3 in the last year?
73 properties were sold in SG3 over the last 12 months, and 314 over the last three years (HM Land Registry Price Paid data).
REFRESHED 11 JUN 2026 ·DATA & SOURCES