Semi-detached
£690,000
79% above the South Mimms average
27.8% of sales
What is the average house price in South Mimms? £386,550
The average house price in South Mimms is £386,550, based on 10 homes sold in the 12 months to July 2026. Prices are down 34.3% (£202,106) on a year earlier.
- 1 year change
- −34.3%
- Sold in 12 months
- 10
- Data up to
- July 2026
Sold prices from HM Land Registry, not asking prices. How we calculate this
How much does each type of property cost in South Mimms?
Average sold price by property type, and each type's share of recent sales.
Terraced
£387,000
About the South Mimms average
50.0% of sales
Flats
£183,500
53% below the South Mimms average
16.7% of sales
Are house prices in South Mimms going up or down?
House prices in South Mimms are falling: down 34.3% (£202,106) over the past year. Over the past 10 years, prices are down 28.5% (£154,450).
Past 12 months
−34.3%
−£202,106From £588,656 to £386,550
£619,178£386,550
Past 10 years
−28.5%
−£154,450From £541,000 to £386,550
£630,230£336,136
Quick answers for South Mimms
9 key facts at a glance.
When did prices peak?
£2,000,000
Highest average, reached in September 2020
How many homes sold?
10
Recorded so far for the 12 months to July 2026
What sells most often?
Terraced houses
50.0% of recent sales
What is the most common price range?
£300k - £400k
38.9% of sales
How many people live in South Mimms?
871
213 people per square mile · Typical (Census 2021)
Population density is Typical, on a scale from Very Low to Very High.
Usual residents, including communal establishments.
How many households are in South Mimms?
369
90 households per square mile · Typical (Census 2021)
Household density is Typical, on a scale from Very Low to Very High.
Occupied households, not communal establishments.
How much green space is in South Mimms?
74 m² per resident
More green space per resident than 85% of areas in England and Wales. That's about 10 football pitches for every 1,000 residents.
0.6% of the area · 0 public parks. Parks, playing fields, allotments and other public green space, not counting golf courses. Contains OS data © Crown copyright and database right 2026.
What is the crime rate in South Mimms?
388 crimes
+1.0% on the previous year · 12 months to September 2026
Contains public sector information licensed under the Open Government Licence v3.0. Source: police.uk.
How does South Mimms rank?
6th most expensive area of Hertsmere.
Compared with 6 areas
What are the most expensive homes sold in South Mimms?
The highest recorded sale prices in South Mimms, from HM Land Registry.
#1 Most expensive sale
brook house galley lane, hertfordshire
£2,666,500
Sold November 2006
View house details
How do house prices in South Mimms compare with nearby areas?
South Mimms compared with the 5 nearest other areas in Hertsmere.
South Mimms vs The Royds
- South Mimms
- £386,550
- The Royds
- £624,928+£238,378
Open comparison
South Mimms vs Ridge
- South Mimms
- £386,550
- Ridge
- £477,500+£90,950
Open comparison
South Mimms vs Shenley
- South Mimms
- £386,550
- Shenley
- £644,385+£257,835
Open comparison
South Mimms vs Elstree and Borehamwood
- South Mimms
- £386,550
- Elstree and Borehamwood
- £485,049+£98,499
Open comparison
South Mimms vs Aldenham
- South Mimms
- £386,550
- Aldenham
- £1,093,408+£706,858
Open comparison
Thinking of buying in South Mimms?
There's a lot to think about. Whether it's a home to live in or a buy-to-let, our free checklist walks you through what to check before you make an offer.
What to check before you buyWhere does this data come from?
Price information is from HM Land Registry, location boundaries are from OpenStreetMap, and households and population are from Nomis Census 2021 postcode estimates (21 March 2021). Parks and green space are from OS Open Greenspace. Contains OS data © Crown copyright and database right 2026. Crime is from police.uk street-level data. Contains public sector information licensed under the Open Government Licence v3.0. Source: police.uk.
Last updated 6 November 2026 at 00:29 with the latest Land Registry data (July 2026). The South Mimms dataset covers 59 postcodes.
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.