Property profile

31 Knolles CrescentWelham Green, North Mymms

AL9 7DZ

Welham Green and Hatfield South

Area profile →

Map showing 31 Knolles Crescent, Welham Green, North Mymms, Hatfield

Property Price
150k200k250k300k400k500k750k1.5M

Estimated sale price

£495,000

Terraced sold in Welham Green and Hatfield South

The box shows the middle 50% of terraced sale prices, the whiskers show the 5th to 95th percentile, and the marker shows this property's estimated price.

Half of similar homes sold within the box; most sold within the wider line.

An indicative model estimate, not a survey or formal valuation.

This property vs market

Last sold10 Oct 2025
£480,000Change since last sale: +£16,000 (+3.3%)
Annualised change
+3.5% per yearWelwyn Hatfield annualised change (terraced) since 2025: +2.0% per yearThis property's value grew faster than the market
Price per sq ftLocal median £440 per sq ft
£475 per sq ftEstimate vs local median: +£35 per sq ft (+7.9%)
Local sold pricesMedian for terraced in Welham Green and Hatfield South
£365,000Estimate vs local median: +£131,000 (+36%)
How this estimate is calculated

Area360's automated valuation uses available property details, recorded sales and local market data to estimate a sale price. This automated estimate is a guide, not a survey, mortgage valuation or formal valuation. See the valuation methodology and limitations.

Estimate calculated .

Property facts

Property typeHouse / Mid-Terrace
TenureFreehold
Construction period1967-1975
Floor area97 m² / 1,044 sq ft
Rooms6 habitable / 6 heated
EPC ratingC
EPC inspection11 Mar 2025

Sales history

DatePriceChange
10 Oct 2025£480,000-

Local market

Property prices in Welham Green and Hatfield South

Median price: £399,750
Price per sq ft: £472
Sales (last 12 months): 74
Typical range (middle 50%): £346K – £531K

Based on 74 recent sales, the median property price is £399,750 (about £472 per square foot) in Welham Green and Hatfield South area, with individual transactions ranging from £180,000 up to £1,175,000.

Prices by property typelast 12 months

Median sale price, median price per square foot, sales count, and percentile information for each property type in Welham Green and Hatfield South over the last year.
TypeSalesMedian£/sq ft
Detached9£780,000£491
Semi-Detached20£512,500£568
Terraced37£365,000£440
Flats8£207,500£382

10-year price trendmedian sale price in Welham Green and Hatfield South

Sale price

Ten year median sale price trend for each property type in Welham Green and Hatfield South.
YearDetachedFlatsSemi-DetachedTerraced
2016£572,500£178,000£445,000£307,000
2017£700,000£210,000£430,000£315,000
2018£862,500£198,750£422,500£315,000
2019£662,500£193,500£454,000£325,000
2020£710,000£197,500£465,500£343,250
2021£644,500£184,000£477,500£363,750
2022£747,975£224,000£542,000£370,250
2023£760,000£222,500£410,000£345,000
2024£555,000£215,000£530,000£371,250
2025£775,000£205,000£521,500£345,000
2026£830,000£210,000£510,000£365,000
Ten year median sale price trend for each property type in Welham Green and Hatfield South.

Price per sq ft

Ten year median sale price per square foot trend for each property type in Welham Green and Hatfield South.
YearDetachedFlatsSemi-DetachedTerraced
2016£562£353£480£380
2017£429£359£476£369
2018£501£394£420£347
2019£472£347£459£415
2020£426£386£505£392
2021£479£368£480£410
2022£479£403£512£427
2023£517£415£486£423
2024£490£430£566£425
2025£493£409£505£429
2026£405£361£581£488
Ten year median sale price per square foot trend for each property type in Welham Green and Hatfield South.

Price distribution by property typelast 12 months

Price distribution by property type for Welham Green and Hatfield South in the last year.

Recent sales

There were 31 recent sold properties in the last 18 months near AL9 7DZ.

Recent sold properties in the last 18 months near AL9 7DZ
DateAddressTypeTenurePriceMap
10 Oct 202531, Knolles Crescent, Hatfield, AL9 7DZTerracedFreehold£480,000
30 Jul 202534, Greville Close, Hatfield, AL9 7EDTerracedFreehold£280,000
04 Mar 202655, Gould Close, Hatfield, AL9 7EBFlatsLeasehold£110,000
20 Jan 202619, Gould Close, Hatfield, AL9 7EBTerracedFreehold£580,000
30 Mar 20268, Alderman Close, Hatfield, AL9 7DSFlatsLeasehold£210,000

Other properties at this postcode

Area insights for AL9 7DZ

Full area profile →

Overview

Postcode AL9 7DZ is located in an urban city, within the Welham Green and Hatfield South area of Welwyn Hatfield in the East of England region, and forms part of the Welham Green area. It has average deprivation and average crime levels, with around 60.1 crimes per 1,000 residents per year, about 27% below the East of England average of 82 per 1,000. The average income per household in Welham Green is £57,203 per year. The median sale price in Welham Green and Hatfield South is £399,750 (around £472 per square foot), with typical sale prices between £346,250 and £530,625. The nearest station is Welham Green, about 0.5 miles away. There are 2 primary and no secondary schools in the area.

Crime rate
6/10
Crimes per 1k residents
60
Deprivation level
5/10
Income level
5/10
Social housing
24.6%
Connectivity
N/A
Flood Risk
No risk
Noise Level
Low

Deprivation level

5/10

Welham Green has an average level of deprivation, ranked at position 18,265 out of 32,844 areas in England, placing it within the bottom 44% least deprived areas in England.

Crime level

6/10

Welham Green has an average crime rate, with approximately 60.1 reported incidents per 1,000 population each year.

Social housing

24.6%

Approximately 24.6% of homes on this street are social housing provided by a local council or housing association. Across the surrounding area, around 23.9% of dwellings are socially rented.

Income level

5/10

The average income per household in Welham Green is £57,203 per year.

Noise Level

Low

Low noise level (55.0-59.9 dB) from road, approximately 143 ft away from AL9 7DZ.

Flood risk

No risk

Welham Green near AL9 7DZ has no flood risk (less than 0.1% chance of a flood each year) from rivers and sea.

Transport

The nearest station is Welham Green located about 0.5 miles away. There are 1 stations nearby.

Nearby public transport stations for AL9 7DZ
DistanceNameLinesDirections
0.5 mi

Welham Green

N/A

Walking directions to Welham Green

Parks

No parks nearby

Area Profile

Population
274
Population density
6,992.3 per km²

Crime

Crime per 1,000 population

Violence and sexual offences
23.3(-26%)
Anti-social behaviour
19.91(+72%)
Criminal damage and arson
11.44(+80%)
Other theft
6.35(+16%)
Burglary
4.66(+68%)
East of England average

Demographics

Ethnic groups

British
192
70.33%
Other White
25
9.16%
African
11
4.03%
Indian
6
2.2%
Irish
6
2.2%
Total population: 273

Economics

Education (age 16+)

Level 4+ (Degree)
67
29.13%
No qualifications
46
20%
Level 2 (GCSEs 9-4)
42
18.26%
Level 3 (A level)
39
16.96%
Level 1 (GCSEs 3-1)
22
9.57%
Total 16+ residents: 230

Housing

Housing tenure

Private landlord or letting agency
42
31.34%
Owns with a mortgage
32
23.88%
Social rents from council
29
21.64%
Owns outright
23
17.16%
Other social rented
4
2.99%
Total households: 134

Schools

In the AL9 7DZ postcode area, located within Welham Green, there are 2 primary and 0 secondary schools in close proximity.

Nearby primary and secondary schools for AL9 7DZ
DistancePhaseNameTypeRating
0.1 miPrimarySt Mary's Church of England VA Primary School, Welham GreenVoluntary aided school

Good

0.5 miPrimaryDe Havilland Primary SchoolAcademy sponsor led

Good

0.7 miNot applicableLinks Hatfield AcademyAcademy alternative provision sponsor led

Good

Local amenities

4 nearby supermarkets & convenience stores within 0.5 mi of AL9 7DZ

Nearby supermarkets & convenience stores for AL9 7DZ
DistanceNameAddressDirections
0.1 miDay-TodayDellsome Lane, Welwyn Hatfield, AL9 7DYWalking directions to Day-Today
0.1 miNisa ExpressDellsome Lane, Welwyn Hatfield, AL9 7DYWalking directions to Nisa Express
0.1 miPremierDellsome Lane, Welwyn Hatfield, AL9 7DYWalking directions to Premier
0.1 miLondisOld Farmhouse Mews, Welwyn Hatfield, AL9 7FAWalking directions to Londis