SN11 9ND is a sought-after residential area on Siwian Cottages, 0.5km from Studley in Wiltshire. Administratively it sits within Calne Rural ward and the North Wiltshire constituency.
One of the more sought-after postcodes in SN11, SN11 9ND offers a spacious suburb popular with older working households approaching retirement. Outside of residential hours, higher status countryside accessible from major metropolitan areas. The 48 average age signals a mature family neighbourhood — long-term residents, good local schools, and high levels of owner-occupation. 78% of residents own their home — above average for the district, consistent with a stable and sought-after address.
Safety: Crime rates are low here at 2 incidents per 1,000 residents — well below average and reassuring for families. Property: Average house prices are around £350k.
Census 2021 statistics for SN11 9ND are sourced from Output Area E00162734 (shared with 12 postcodes in this micro-neighbourhood). Property prices come from HM Land Registry.
SIWIAN COTTAGES, SN11 9ND House Prices & Local Information
Comprehensive demographic deep-dive and infrastructure audit for SIWIAN COTTAGES, SN11 9ND.
232
48
£ 53,400 /yr
52%
Neighbourhood Index
infoHow calculated?Score 1–10 — how this postcode ranks nationally (10 = top 10%)
Index Insight: SN11 9ND is ranked in the top 20% nationally for affluence, indicating a high-income demographic. It scores highly on the family-friendly index, suggesting a strong presence of family households and good proximity to schools. The area also shows excellent employment metrics, indicating a highly economically active population.
Area Character
Balanced, accessible, and mixed. SN11 9ND spans multiple life stages — average age 48, moderate ownership and renting. Low crime and mid-range prices make this a solid all-round choice.
mapGeographic Location
Demographic Deep-Dive
The Census 2021 data below shows the full population breakdown for SN11 9ND. The average age is 48.3. Figures are sourced from the Office for National Statistics and cover ethnicity, age, religion, education, occupation, housing tenure, and more.
Ethnicity Profile
Economic Activity
Area Vibe: Peaceful, mature, and permanent. The demographic data points to a strong concentration of older homeowners and empty-nesters.
home Property Prices by Type
Semi-Detached
£ 330,000
2 sales · Mean £ 330,000
Terraced
£ 280,000
1 sales · Mean £ 280,000
gavel Crime Overview 12 Months (up to 2025-11)
SN11 9ND has low crime rates — 2 incidents per 1,000 residents. The most reported categories are vehicle crime and violence and sexual offences. Commercial streets and transport hubs naturally generate more incidents than quiet residential roads.
school Local Schools
Derry Hill Church of England Voluntary Aided Primary School
storefront Nearby Amenities
Restaurant, Cafe
1 nearby- Bowood House and Gardens1.0 km
Retailers - Other
1 nearby- Post Office Stores0.9 km
Hotel, B&B, Guest House
1 nearby- Bowood Hotel, Spa and Golf Resort1.0 km
train Transport Links
Train Stations
- Chippenham5.4 km
- Melksham9.3 km
- Trowbridge17.5 km
Bus Stops
- Studley Crossroads0.3 km
- Studley Crossroads0.4 km
- Studley Crossroads0.4 km
- Gurkha Baynjan0.4 km
- Gurkha Baynjan0.5 km
Generated by PostcodeInfo.uk
Postcode Profile: SN119ND · Data under Open Government Licence