Average building footprint
98.3 m²
78.4 m² less than the Kotka average
Postcode area · Kotka
Drainage renovation in postcode area 48750 Kotka
Local buildings, soil conditions and rainfall affect how perimeter drainage, stormwater and ground grading should be designed in 48750 Kotka. Enter your address to see a property-specific plan, a binding price and the option to order the renovation online.
Enter address and see priceBuilding stock
376
Buildings
Area
6.0 km²
Streets
18
Residential buildings
22.1 %
Annual rainfall
700 mm
30 mm more than the Kotka average
Average temperature
6.3 °C
0.2 °C lower than the Kotka average
Building types
What types of residential buildings are found in 48750 Kotka?
Low-rise residential buildings are divided into detached, semi-detached and terraced houses by dwelling count. Apartment buildings follow the open Ryhti building classification.
Detached houses
75
93.8 % of these residential buildings
14.1 percentage points above the share in Kotka
Semi-detached houses
2
2.5 % of these residential buildings
3.3 percentage points below the share in Kotka
Terraced houses
1
1.3 % of these residential buildings
4.7 percentage points below the share in Kotka
Apartment buildings
1
1.3 % of these residential buildings
6.7 percentage points below the share in Kotka
The classification covers 52.4% of buildings in the area. A more precise type could not be assigned to 1 low-rise residential buildings because dwelling-count data was missing. The classification describes building type, not ownership or housing-company status.
Local rainfall
What does 700 mm mean for a house?
Water does not disappear from a property on its own. Roof water needs a stormwater system, surface water needs correctly graded ground and water in the soil needs perimeter drainage to carry it away from the foundations.
The area managed by the drainage and stormwater systems receives an average of
227,000 litres
per year. The estimate is based on an average detached house in 48750 Kotka, with a building footprint of 144 m², plus the three-metre zone around the building.
Where does the water go at your home?
Ground grading directs rain and meltwater away from the building. The stormwater system carries roof water away in a controlled manner, while perimeter drains remove water accumulating beside and below the foundations. All three need a safe, working discharge route.
One less worry for your home
When water flows the right way, home can feel like home
Working perimeter drainage, a properly designed stormwater system and correct ground grading carry water away from the building. Good moisture management is almost invisible in daily life. That is exactly how it should be.
Salaojapiste also makes buying the renovation clear. You see the solution for your home and the price in advance. Every Salaojapiste renovation has a clear beginning and end, and you can continue online all the way to the contract.
See the solution for your homeFinland's first online store for drainage renovations
From price directly to order
This is more than a price calculator. We have already reviewed the building and checked the soil, where water loads the property, where it can naturally discharge and how the buildings are positioned on the plot. See what we found.
- 01
Choose your building
Enter the address and select the building on the map that the renovation concerns.
- 02
See the plan and price
You receive a site-specific renovation plan and a clear total price.
- 03
Order the renovation online
When you are ready, approve the contract and buy the renovation directly without intermediaries.
Price, plan and order
See the price and order a drainage renovation 48750 Kotka
Enter the address and choose the building. With a few additional details, you receive the total price and can continue all the way to the contract if you wish.
Start here
Enter your address
Select your address to see how easily you can get a price for your renovation from us. Welcome to renovation buying done one step better!
We process the information you provide to perform the analysis and deliver the service. More information: Terms of Use and Privacy Policy.
Soil data from GTK
What soil types are found in postcode area 48750 Kotka?
372buildings
Sandy till41.9 %
Sand26.1 %
Bedrock12.4 %
Clay8.1 %
Silt5.6 %
Other soil types5.9 %
The most common surface soil type is Sandy till. This soil underlies 41.9 % of the buildings in 48750 Kotka. the Kotka average the corresponding share is 36.2 %.
Area ranking in the municipality
How does 48750 Kotka compare within Kotka?
48750 Kotka is compared with the municipality's 25 postcode areas.
01
Number of buildingsRanked 21
02
Average building footprintRanked 20
03
Annual rainfallRanked 3
04
Average temperatureRanked 21
Location on the map
48750 Kotka
The map shows the postcode area's official Paavo boundary. Use the address search to open the building, property and property-specific planning flow.
See the price for your addressDrainage renovation street by street
Choose a street to explore its building stock and local rainfall. From the street page, continue to the plan and price for your exact address.
Other postcode areas in Kotka
Compare building stock, soil and moisture-management conditions across the municipality's postcode areas.
46930 Huruksela1,030 buildings48100 Kotka2,981 buildings48130 Kotka394 buildings48200 Kotka374 buildings48210 Kotka112 buildings48220 Kotka817 buildings48230 Kotka1,225 buildings48300 Kotka1,289 buildings48310 Kotka3,205 buildings48350 Kotka229 buildings48400 Kotka2,027 buildings48410 Kotka1,862 buildings
Frequently asked questions
What does a perimeter drainage renovation cost in 48750 Kotka?
The price depends on the building's size, drainage length, soil, working space, surfaces to be reinstated and the water discharge route. Enter the exact address to receive a property-specific plan and price.
How does soil affect a drainage renovation?
Soil affects excavation, trench construction, water movement and the machinery that can be used. Area data provides local context, but each property is always analysed separately.
Why does rainfall management matter?
Perimeter drainage, roof water, ground grading and a safe discharge route form one moisture-management system. Replacing drainpipes alone does not address every source of water load around the foundations.
Sources: the Finnish Environment Institute's Ryhti building data, Posti (postcodes, postal towns and BAF address ranges), Statistics Finland's Paavo data (postcode area boundaries), the National Land Survey of Finland (buildings), the Geological Survey of Finland GTK (surface soil) and the Finnish Meteorological Institute (rainfall and temperature data for 2016–2025).