A complete guide to property investment in Swanley.
Last updated: 18 September 2025
Swanley offers a balanced investment environment, with a property market that has shown resilience over the past three years. Investors will note the annualised growth over three years of 3.1%, indicating steady appreciation despite a 1-year capital growth of -0.1%. The market appears liquid, as properties spend an average of 43 days on the market, and the median discount to asking price is £0 (the typical achieved discount), suggesting sellers achieve their price expectations.
Affordability is a mixed picture: the price-to-income ratio of 6.5 is moderate for the region, while the rent-to-income ratio of 30.0% may stretch some tenants. The area is dominated by families (in the 87th percentile nationally), with a low share of private renters and a high proportion of social housing. This demographic mix shapes both demand and rental dynamics.
Median price per sq ft
£426 / sq ft
Average rental yield
5.3%
Capital growth (1y)
-0.1%
Sales in past year
191
* Property stats calculated for last full calendar year (2024).
Live prices in Swanley, South East
* Extreme prices clipped for legibility
Median price
£475,000
25% of properties below...
£375,000
75% of properties below...
£675,000
Most expensive property
£2,995,000
Live listings
133
Median days on market
43
Looking ahead, Swanley is likely to remain a family-focused market, with demand for three-bedroom houses supported by demographic trends. The median sale price for a 3-bedroom house of £450,000 and median rent of £1,850 reflect this ongoing interest. Investors can expect stable returns, with annualised growth over three years of 3.1% suggesting a steady, if unspectacular, pace of capital appreciation.
Liquidity should remain strong, given the current days on market of 43 days and sellers' ability to achieve their asking prices. While the rental market is not large, strong yields of 5.3% and limited supply could keep rents resilient. Overall, Swanley offers a mildly positive outlook for investors who value stability and reliable demand over rapid growth.
Average yield (%)
* 2025 data for YTD
Median price per sq ft (£/sq ft)
* 2025 data for YTD
Investment properties in Swanley, South East
£525,000 - Guide Price
5 bedroom semi-detached house for sale
Irving Way, Swanley, Kent, BR8
£349,995
1 bedroom retirement property for sale
Burlington Lodge, Swanley
£90,000
1 bedroom apartment for sale
Inglewood, The Spinney, Swanley
£575,000 - Offers in Excess of
3 bedroom detached house for sale
Dahlia Drive, Swanley, Kent
£90,000
1 bedroom flat for sale
Inglewood, The Spinney, Swanley
Vendors are holding firm; properties tend to sell at close to asking.
• Median discount: £0
• 1 in 4 properties sell at > £5,000 below asking
• 1 in 10 properties sell at > £16,750 below asking
In percentage terms:
• Median discount of 0.0%
• 25% of properties discounted by > 1.9%
• 10% of properties discounted by > 4.3%
Top postcodes for rental yield and (annualised) capital growth
GeoGlider calculates property investment stats by blending official and proprietary datasets. Here's a quick overview of key sources and how we use them:
HM Land Registry: Property transaction and sold-price records for England & Wales used to calculate historical capital growth, price levels and comparables.
Office for National Statistics (ONS): Demographic and economic indicators for the UK, including Census 2021, supporting area profiling and market context.
Ordnance Survey: Authoritative UK geospatial data powering accurate boundaries, roads and terrain for mapping and spatial analysis.
GeoProp: Our proprietary AI pipeline that processes millions of property listings to extract rich features and live market signals.
Department for Levelling Up, Housing & Communities: Energy Performance Certificate (EPC) scores and property floor areas.
HM Revenue & Customs (HMRC): Household income and employment data to understand local affordability and economic conditions.
Data is updated continuously, matched across sources and rigorously validated.