Neighbourhood Sumar

Neighbourhood in district Sumar · municipality Tytsjerksteradiel · Fryslân (Friesland)

  • 406 homes
  • 920 inhabitants
  • avg. year of construction 1973
  • avg. WOZ € 275.000

Boundary according to the CBS district and neighbourhood map 2024. Zoom in for individual homes; click a home for details. Open in the properties map

Homes in Sumar

Homes
406
addresses with residential function (BAG)
Average build year
1973
Average living area
138 m²
Housing stock (CBS)
413
2025

Home type

  • Detached 38% 155
  • Mid-terrace house 24% 97
  • End-terrace house 16% 66
  • Semi-detached house 16% 64
  • Apartment 6% 24

Energy label

  • A or better 17% 67
  • B 20% 82
  • C 34% 138
  • D 7% 27
  • E 3% 14
  • F 4% 18
  • G 12% 50
  • No label 2% 10

Building period

  • Built before 1945 17% 70
  • 1945–1969 17% 69
  • 1970–1989 33% 133
  • 1990–2009 17% 68
  • 2010 and later 12% 48
  • Unknown 4% 18

Residents

Residents
920
January 1, 2025
Households
405
avg. 2,3 people
One-person households
32%
Households with children
35%
Population density
491
inhabitants per km²
Area
2,0 km²
of which 0,1 km² water

Age distribution

  • 0–15 years 16% 145
  • 15–25 years 12% 110
  • 25–45 years 25% 230
  • 45–65 years 26% 245
  • 65 years and older 21% 195

Housing and value

Average WOZ value
€ 275.000
CBS 2024
Owner-occupied homes
71%
Rental homes
29%
26% housing association
Single-family homes
94%
6% multi-family
Built in the last 10 years
2%
Unoccupied properties
3%
New build in the year
1
delivered homes

The WOZ value is the average of all homes in the area (valuation date January 1 of the previous year), not the market value of a specific property.

Energy

Avg. electricity consumption
2.470 kWh
per dwelling per year
Avg. feed-in
1.360 kWh
solar power per home
Avg. gas consumption
970 m³
per dwelling per year
Homes with solar panels
57%
Gas-free
3%
Mainly electrically heated
7%
Heating (WarmteAtlas)
97% central heating, 1% electric
2022
Geothermal potential
Ongunstig
Slochteren formation

Consumption is the average of all homes with a connection in the area (CBS); the label distribution is shown under "Woningen".

Amenities and accessibility

Large supermarket
2,7 km
avg. distance
General practice
3,0 km
avg. distance
Primary school
400 m
avg. distance
Daycare
400 m
avg. distance
Schools within 3 km
2
Urbanity
Non-urban
228 addresses per km²
Cars per household
1,2
487 passenger cars
Company locations
135
of which 25 retail and hospitality

Road distances, averaged for all residents of the area (CBS).

Living environment: noise, water, air, light and green

Average noise level (Lden)
52 dB
municipality 48 dB
Homes with road traffic above 55 dB
5%
municipality 10%
Homes with rail traffic above 55 dB
0%
municipality 0%
Homes with air traffic above 48 dB
0%
municipality 1%
Homes with wind turbine noise above 40 dB
0%
's nachts wegverkeer boven 50 dB
0%
municipality 3%

Noise level of the 406 homes

  • 46–50 dB: quiet 32% 130
  • 51–55 dB: moderately 56% 229
  • 56–60 dB: busy 12% 47

Flooding

Homes that may flood
0%
municipality 23%
Of which more than 0.5 m water
0%
Of which more than 2 m water
0%
Maximum water depth
none

Air, light and green

NO₂
6,7 µg/m³
0% above WHO advice (10)
PM2,5
6,4 µg/m³
100% above WHO recommendation (5)
PM10
12,5 µg/m³
0% above WHO advice (15)
Night lighting
Dark
municipality: dark
Green within 500 m
68%
municipality 67%

Noise: RIVM noise maps (road and rail 2020, aviation 2022, wind turbines 2024), annual average Lden per 10 m, sampled at each address. Flooding: LIWO (Rijkswaterstaat), map of maximum water depth; depth says nothing about probability. Air: RIVM annual average concentrations at 25 m. Light: RIVM light emission map 2023. Green: RIVM green map 2022, share of green within 500 m. Turn the noise map on in the map above.

Climate and safety

Apparent temperature on a hot day
44 °C
extreme heat stress
Homes with extreme heat stress (41 °C or higher)
98%
municipality 93%
Urban heat island effect
0,2–0,4 °C
on average warmer than the surrounding area
Homes with a cool spot within 300 m
100%
municipality 99%
Dry floor at the most severe flood
100%
Homes with increased risk of groundwater nuisance in 2050
85%
municipality 53%
Homes with a stormwater channel alongside the house
2%
municipality 4%
Homes in the magnetic field zone of a high-voltage line
0%
municipality 0%
Homes within 1 km of a wind turbine
0%
municipality 10%

Climate Impact Atlas 2026 (CC BY 4.0): perceived temperature and heat island 2022, cool spots, location-specific flood probability (at least 20 cm water), dry floors, risk of groundwater nuisance 2050 (high scenario), flow paths at 70 mm precipitation per hour; sampled per dwelling. High-voltage lines: RIVM Netkaart with calculation distances. Wind turbines: RIVM. Turn on the heat map on the map above.

Safety

Crimes per 1,000 inhabitants
12
Sep 2025 – Aug 2026
Registered crimes
11
+10% vs. the previous year
Residential burglaries per 1,000 homes
0,0
0 burglaries
Municipality
24
per 1,000 inhabitants
Netherlands
45
per 1,000 inhabitants

Types of crimes (last 12 months)

  • Vernieling 27% 3
  • Fietsdiefstal 9% 1

Per year

  1. 302021
  2. 172022
  3. 252023
  4. 152024
  5. 72025

Source: police, registered crimes per area (CBS/police open data, monthly figures). Per 1,000 inhabitants based on the area's population; not every crime is reported.

Liveability

Good Liveability meter 2024

very insufficientexcellent

Liveability
Good
class 7 of 9, measurement 2024
Score
4,14
+0,04 vs. the national average
Since the previous measurement
+0,03
measurement 2022: More than sufficient
Municipality
Very good
score 4,21

Five dimensions, deviation from the national average

  • Physical environment green, water, buildings, noise +0,02 sufficient
  • Housing stock type, construction year, ownership +0,05 more than sufficient
  • Amenities shops, schools, healthcare, public transport −0,17 more than insufficient
  • Social cohesion population composition, relocations +0,05 more than sufficient
  • Nuisance and insecurity crime and nuisance +0,09 good

Source: Leefbaarometer 3.0 (Ministry of the Interior and Kingdom Relations, CC0), biennial estimate based on over a hundred characteristics; the score expresses how residents rate livability on average. Negative = below the national average.

Soil and foundation

Soil subsidence (total)
−2,6 mm per year
municipality −1,9 mm
Soil subsidence (shallow)
−0,1 mm per year
peat and clay that subside
Expected decrease until 2050
2 cm
high scenario
Homes at risk of pile rot
0,3%
zeer laag, municipality 0,3%
Pile rot in 2050
0,3%
high scenario, drier summers
Difference projection in 2050
0,9%
houses on pile with risk

Source: Klimaateffectatlas 2026 (CC BY 4.0): subsidence from satellite measurements (Bodemdalingskaart), foundation risk per neighbourhood (Deltares/KCAF, share of homes with wooden piles or on slab at risk). A neighbourhood average, not a statement about a single property.

Income and work

Median household wealth
€ 170.600
Net labour participation
72%
from 15 to 75 years
Self-employed
17%
of the working population
Top 20% incomes
11,9%
share of people (nationally 20%)