England / Kent / Sevenoaks / Swanley
St Mary's£400,359
Average price, last 12 months
+5.3% in a year
Compare house prices
How do I compare house prices between areas?
The average house price in St Mary's is £400,359 over the last 12 months. Over the past year prices rose 5.3%.
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Where is this area?
Boundary outlines for this location, using the same colours as the rest of the page.
What does each type of home cost?
Average sale price by property type over the last 12 months.
Detached
- £950,000
Semi-detached
- £440,300
Terraced
- £384,555
Flats
- £223,250
What kinds of homes sell in each area?
Share of last 12 months' sales by property type.
- Detached
- Semi-detached
- Terraced
- Flats
St Mary's
Mostly semi-detached houses
59%
16%
19%
How do all the numbers compare?
Every measure side by side. The highest value in each row is highlighted.
Latest 12-month average
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
£400,359
Change over 1 year
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
+£20,075
Change over ~10 years
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
+£140,167
Homes sold (last 12 months)
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
42
Homes sold vs previous 12 months
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
−16
Number of postcodes
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
229
Households (Census 2021)
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
—
Household density
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
—
Population (Census 2021)
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
—
Population density
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
—
Peak month
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
JAN 2021 · £599,995
Most common price band
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
£400k – £500k · 51.4%
Detached average
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
£950,000
Semi-detached average
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
£440,300
Terraced average
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
£384,555
Flats average
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
£223,250
Detached share of sales
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
5.7%
Semi-detached share of sales
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
59.0%
Terraced share of sales
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
16.2%
Flats share of sales
St Mary's
England / Kent / Sevenoaks / Swanley / St Mary's
19.1%
| Metric | St Mary's England / Kent / Sevenoaks / Swanley / St Mary's |
|---|---|
| Latest 12-month average | £400,359 |
| Change over 1 year | +£20,075 |
| Change over ~10 years | +£140,167 |
| Homes sold (last 12 months) | 42 |
| Homes sold vs previous 12 months | −16 |
| Number of postcodes | 229 |
| Households (Census 2021) | — |
| Household density | — |
| Population (Census 2021) | — |
| Population density | — |
| Peak month | JAN 2021 · £599,995 |
| Most common price band | £400k – £500k · 51.4% |
| Detached average | £950,000 |
| Semi-detached average | £440,300 |
| Terraced average | £384,555 |
| Flats average | £223,250 |
| Detached share of sales | 5.7% |
| Semi-detached share of sales | 59.0% |
| Terraced share of sales | 16.2% |
| Flats share of sales | 19.1% |
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.