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AREA REPORT · WELWYN HATFIELD AL9

AL9.

Welwyn Hatfield

AL9 is an outcode in Welwyn Hatfield, covering the neighbourhoods of Hatfield East, Welham Green, Brookmans Park, Hatfield North & West and Watton-at-Stone, Bramfield & Bayford. Over the last 12 months 67 properties changed hands — a median of £323k for flats (£4,371/sqm) and £655k for houses (£5,801/sqm). Housing stock peaks at EPC band D.

Sales · 12m
67
327 over 3y
Houses · £/sqm
£5,801
n=53
Flats · £/sqm
£4,371
n=14
EPC score
67
Potential 81
PRICE MATRIX
Sales by window, type, and floor area.
Houses · 6m
Avg £
£813k
n=22
Median £
£618k
n=22
Avg £/sqm
£5,619
n=22
Median £/sqm
£5,520
n=22
Houses · 12m
Avg £
£750k
n=53
Median £
£655k
n=53
Avg £/sqm
£5,850
n=53
Median £/sqm
£5,801
n=53
Houses · 3y
Avg £
£834k
n=265
Median £
£680k
n=265
Avg £/sqm
£5,784
n=260
Median £/sqm
£5,670
n=260
Flats · 6m
Avg £
£439k
n=3
Median £
£340k
n=3
Avg £/sqm
£4,960
n=3
Median £/sqm
£5,146
n=3
Flats · 12m
Avg £
£368k
n=14
Median £
£323k
n=14
Avg £/sqm
£4,628
n=14
Median £/sqm
£4,371
n=14
Flats · 3y
Avg £
£327k
n=62
Median £
£300k
n=62
Avg £/sqm
£4,725
n=61
Median £/sqm
£4,506
n=61
£/sqm derives from EPC-matched floor area. Thin-coverage rows appear muted.
PRICE + VOLUME · 25Y
Medians and monthly sales, 2001–present.
£89k£478k£866k20052010201520202025Median house · 12m smoothedMedian flat · 12m smoothedSales volume (monthly)
EPC · 25Y
Certificates issued, by band.
02555102010201520202025
A
B
C
D
E
F
G
Total issued
COUNCIL TAX
Band distribution.
Council tax data coming in Phase 2.
SECTORS
Drill down to sector.
COVERAGE
Neighbourhoods and wards.
Neighbourhoods (MSOA)
5 · click column to sort
Welham Green
1,647
1,794
Brookmans Park
1,508
1,751
Hatfield East
1,689
1,703
Hatfield North & West
80
84
Watton-at-Stone, Bramfield & Bayford
2
2
Wards
5 · click column to sort
Brookmans Park and Little Heath
1,954
2,140
Welham Green and Hatfield South
1,647
1,794
Hatfield East
1,243
1,314
Hatfield Central
80
84
Hertford Rural
2
2
LAND REGISTRY · EPC · ONS UPRN · GEOLYTIX · REFRESHED 25 APR 2026