Kesklinn district, Tallinn · Apartment building
Koidu tn 21a, Tallinn — building data and flat estimate
Built 1972 · 2 floors · 12 apartments · EHR 101022268 · Cadastre 78401:108:1890
Koidu tn 21a (Kesklinn, Tallinn) is a 2-storey apartment building completed in 1972 with 12 flats. Estiq's model estimates flats here at €2 798–3 386/m² (typically €3 092/m², as of 09.11.2026). This is not a licensed appraisal. In Kesklinn, 117 flats in buildings of the same era sold over the last four completed quarters.
Estimated market value
€3 092 /m²
€2 798
range ±9.5%
€3 386
Typical apartment · 33.8 m²
€118 570
Building score
7.0 / 10
Energy class
E estimated
vsKesklinna median (all build years)
-17,1%
Automated model estimate (AVM), not a professional valuer's appraisal · as of 09.11.2026 · Land Board notarial transactions
View from the air · oblique aerial photo 05.05.2024: Maa- ja Ruumiamet, Tallinna Strateegiakeskus (open data licence) · Request removal of this photo
Aerial photo · building outline from the Building Register (EHR) · Orthophoto 02.05.2024–05.05.2024, Maa- ja Ruumiamet (open data licence)
Location map · CARTO Voyager · © OpenStreetMap contributors
Prices by apartment type
| Type | Count | Area | €/m² | Value range |
|---|---|---|---|---|
| 1-room | 12 | 26,8–46,0 m² | €3 092 | €79 000 – €96 000 (median area 28,4 m²) |
Actual value depends on the floor, interior finish, balcony/terrace, storage and parking space.
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Model-based analysis built on real EHR and transaction data.
The area at a glance · Koidu tn 21a
On foot
Environment
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Details, sources and limits
Around Koidu tn 21a (within 1.5 km): nearest public transport stop: A. Adamsoni stop (248 m, 3 min on foot); nearest grocery store: Kapi Pood (31 m, 1 min on foot); nearest park or green area: Falgi park (162 m, 2 min on foot); nearest school: Kaarli Kool (130 m, 2 min on foot); nearest kindergarten: Kaarli Kool (130 m, 2 min on foot). Distances are straight-line, walking time assumes 4.5 km/h. Police open data list 83 recorded incidents in the surrounding ~0.7 km² cell over 24 months (incident level: above average). Air: of the last 12 months' hourly readings, 39% were in the two best classes and 23% in the two worst (level: high). Estimated road noise at the building is 62 dB (Lden). Radon in soil gas: high (50–100 kBq/m³). These describe the area, not a specific apartment.
Transit
A. Adamsoni stop 248 m · Hotell Tallinn stop 300 m · Koidu stop 316 m
Grocery stores
Kapi Pood 31 m · Kassisaba kauplus 117 m · Ülle 475 m
Parks and green areas
Falgi park 162 m · Hirvepark 393 m · Lindamägi 454 m
Schools
Kaarli Kool 130 m · Jakob Westholmi Gümnaasium 186 m · Tallinna Tõnismäe Riigigümnaasium 399 m
Kindergartens
Kaarli Kool 130 m · Kaarli Kool 390 m · Kaarli lasteaed 394 m
Radon in soil
High · 50–100 kBq/m³. A soil-gas reading, not the flat’s indoor air; mainly relevant to basements and ground floors.
Noise
Estimated level is 9 dB above the WHO recommended level (53 dB Lden).
Incident level
Counts incidents reported to the police for the surrounding ~0.7 km² cell, not how safe it feels.
The indicators describe the area, not a specific apartment. Sources: Estiq database (stops, shops, parks, schools, kindergartens; OpenStreetMap, EHIS), Environmental Agency (air), Police and Border Guard Board (incidents), Geological Survey of Estonia (radon), Estiq noise model. How we calculate this
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The Building & Surroundings Report (PDF) combines Estiq Radar construction projects (150–500 m), association finances, registers and environment. Does not include an apartment valuation.
Price trend and transactions: Kesklinn district, built 1971-1990
Few local sales → wider district
+0,9% YoY
Notarial transactions per Land Board data: Kesklinn district · built 1971-1990 (compared with Tallinn)
Kesklinna (1971-1990)
Tallinn (1971-1990)
Transaction count
Model forecast
€3 218 /m²
View detailed quarterly statistics (9 quarters) ▾
| Quarter | Kesklinna €/m² | Tallinn €/m² | Transactions (pcs) |
|---|---|---|---|
| 2024 Q4 | €2 887 | – | 25 deals |
| 2025 Q1 | €2 884 | €2 231 | 23 deals |
| 2025 Q2 | €2 808 | €2 263 | 21 deals |
| 2025 Q3 | €3 188 | €2 304 | 27 deals |
| 2025 Q4 | €3 144 | €2 333 | 34 deals |
| 2026 Q1 | €3 205 | €2 414 | 21 deals |
| 2026 Q2 | €3 180 | €2 424 | 31 deals |
| 2026 Q3 | €3 218 | €2 477 | 31 deals |
| 2026 Q4 (forecast) | €3 232 | – | – |
Due to limited transaction volume in Kassisaba subdistrict for cohort 1971-1990 (<3 quarters), aggregated district data for Kesklinn district is shown: YoY trend +0.9% (compared to Tallinn +7.5%), activity steady at 21–34 deals per quarter.
Evidence and calculation basis (EHR & Land Board)
Quarterly transaction prices (Land and Spatial Development Board)
9 quarters
| Quarter | Kesklinna (€/m²) | Tallinn (€/m²) | Notarial transactions |
|---|---|---|---|
| 2024 Q4 | €2 887 | – | 25 deals |
| 2025 Q1 | €2 884 | €2 231 | 23 deals |
| 2025 Q2 | €2 808 | €2 263 | 21 deals |
| 2025 Q3 | €3 188 | €2 304 | 27 deals |
| 2025 Q4 | €3 144 | €2 333 | 34 deals |
| 2026 Q1 | €3 205 | €2 414 | 21 deals |
| 2026 Q2 | €3 180 | €2 424 | 31 deals |
| 2026 Q3 | €3 218 | €2 477 | 31 deals |
| 2026 Q4 (forecast) | €3 232 | – | – |
Registry data (EHR and cadastre)
6/8 fields filled in register (completeness, not verification)
| Year built | 1972 |
| Apartments in building | 12 |
| Floors / lifts | 2 floors |
| Structure | |
| Heating | |
| Plot | 0 m² · |
| EHR code | 101022268 |
| Cadastre | 78401:108:1890 |
Frequently asked questions
7
What do apartments at Koidu tn 21a cost?
As of 09.11.2026, the Estiq model baseline at Koidu tn 21a is €3 092/m² (range €2 798–3 386/m², ±9.5%). That is -17.1% against the Kesklinna sales median across all build years (€3 728/m²).
How many apartment sales were there in Kesklinna?
Land and Spatial Board transaction statistics show 117 apartment sales in Kesklinna in the last four completed quarters, in buildings of the same era (1971-1990).
Are sale prices for flats at Koidu tn 21a public?
The Land and Spatial Board publishes transaction statistics by area, not by address. Estiq therefore shows sales in same-era buildings (1971-1990) in Kesklinn: 117 in the last four completed quarters. The price level for this building is a model estimate, not a sale price.
Does the online estimate replace a bank valuation (EVS 875)?
No. The Estiq figure is a statistical model estimate. For a mortgage the bank requires a licensed valuer's report under EVS 875.
Which sources does the data for Koidu tn 21a come from?
Building data comes from the Estonian Register of Construction Works (EHR), transaction statistics from the Land and Spatial Board, association finances from annual reports filed with the Business Register, and the estimate from the Estiq market database. Latest data as of 09.11.2026. Methodology: https://estiq.ee/en/methodology.
What are the nearest shop, school, park and transit stop to Koidu tn 21a?
Around Koidu tn 21a (within 1.5 km): nearest public transport stop: A. Adamsoni stop (248 m, 3 min on foot); nearest grocery store: Kapi Pood (31 m, 1 min on foot); nearest park or green area: Falgi park (162 m, 2 min on foot); nearest school: Kaarli Kool (130 m, 2 min on foot); nearest kindergarten: Kaarli Kool (130 m, 2 min on foot). Distances are straight-line, walking time assumes 4.5 km/h.
What is the area around Koidu tn 21a like: safety, air, noise and radon?
Police open data list 83 recorded incidents in the surrounding ~0.7 km² cell over 24 months (incident level: above average). Air: of the last 12 months' hourly readings, 39% were in the two best classes and 23% in the two worst (level: high). Estimated road noise at the building is 62 dB (Lden). Radon in soil gas: high (50–100 kBq/m³). These describe the area, not a specific apartment.
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Koidu tn: apartment buildings and association costs
64 buildings · median €3 250/m² · built 1901–2020 · median association cost 3,48 €/m²/mo (40 associations)
| Address | Built | €/m² | Typical flat | Energy | Assoc. €/m²/mo | Flat / month | Association |
|---|---|---|---|---|---|---|---|
| Koidu tn 1 | 2012 | €4 002 | ~€267 356 | B ~ | 2,64 | ≈ €227 | KÜ report 2025 → |
| Koidu tn 3 | 1954 | €3 214 | ~€163 271 | E | 5,05 | ≈ €271 | KÜ report 2025 → |
| Koidu tn 4 | 1940 | €3 375 | ~€168 991 | E ~ | 3,69 | ≈ €176 | KÜ report 2025 → |
| Koidu tn 5 | 1953 | €3 271 | ~€166 167 | F | 2,36 | ≈ €122 | KÜ report 2025 → |
| Koidu tn 6 | 1952 | €3 155 | ~€165 650 | E | 2,95 | ≈ €179 | KÜ report 2025 → |
| Koidu tn 7 | 1953 | €3 299 | ~€170 276 | D | 4,83 | ≈ €246 | KÜ report 2025 → |
| Koidu tn 8 | 1940 | €3 234 | ~€172 049 | E | 4,09 | ≈ €224 | KÜ report 2025 → |
| Koidu tn 9 | 1951 | €3 271 | ~€167 993 | F | 5,27 | ≈ €273 | KÜ report 2025 → |
| Koidu tn 10 | 1961 | €3 055 | ~€161 036 | E ~ | 1,83 | ≈ €100 | KÜ report 2025 → |
| Koidu tn 11 | 1940 | €3 352 | ~€168 941 | F | 4,01 | ≈ €183 | KÜ report 2025 → |
| Koidu tn 12 | 1948 | €3 500 | ~€183 400 | E | 3,32 | ≈ €133 | KÜ report 2025 → |
| Koidu tn 16 | 2008 | €3 446 | ~€157 282 | D | 4,74 | ≈ €203 | KÜ report 2024 → |
| Koidu tn 21a · this building | 1972 | €3 092 | ~€118 570 | E ~ | – | – | – |
| Koidu tn 23 | 1994 | €2 977 | ~€177 444 | E | 4,43 | ≈ €124 | KÜ report 2025 → |
| Koidu tn 25/1 | 1940 | €3 190 | ~€92 159 | E ~ | – | – | – |
| Koidu tn 27 | 2002 | €3 456 | ~€255 043 | F | 3,14 | ≈ €203 | KÜ report 2025 → |
| Koidu tn 31 | — | €3 606 | ~€151 864 | — | 1,35 | ≈ €88 | KÜ report 2025 → |
| Koidu tn 31/1 | — | €3 597 | ~€149 480 | — | – | – | – |
| Koidu tn 37 | 1940 | €3 133 | ~€66 612 | E ~ | – | – | – |
| Koidu tn 40 | 1995 | €3 195 | ~€253 747 | F | 4,02 | ≈ €231 | KÜ report 2025 → |
| Koidu tn 44 | 2012 | €4 345 | ~€358 608 | B ~ | 3,85 | ≈ €364 | KÜ report 2025 → |
| Koidu tn 50/1 | 1940 | €3 133 | ~€86 463 | E ~ | – | – | – |
| Koidu tn 52 | 1940 | €3 132 | ~€146 674 | E ~ | – | – | – |
| Koidu tn 56a | 1940 | €3 132 | ~€138 886 | E ~ | – | – | – |
| Koidu tn 57 | 1901 | €3 185 | ~€61 116 | E ~ | 8,32 | ≈ €135 | KÜ report 2025 → |
| Koidu tn 58 | 1940 | €3 132 | ~€183 222 | E ~ | – | – | – |
| Koidu tn 59 | 1940 | €3 210 | ~€125 202 | E ~ | 2,35 | ≈ €54 | KÜ report 2024 → |
| Koidu tn 61 | 1932 | €3 440 | ~€83 556 | E ~ | – | – | – |
| Koidu tn 62 | 2008 | €3 525 | ~€213 168 | E | 3,86 | ≈ €258 | KÜ report 2025 → |
| Koidu tn 63 | 1949 | €3 185 | ~€124 845 | E | 3,08 | ≈ €148 | KÜ report 2025 → |
| Koidu tn 64 | 1930 | €3 165 | ~€138 294 | C | 4,24 | ≈ €179 | KÜ report 2024 → |
| Koidu tn 65 | 1972 | €2 985 | ~€65 180 | E ~ | – | – | – |
| Koidu tn 66 | 1946 | €3 167 | ~€78 154 | E ~ | – | – | – |
| Koidu tn 67/1 | 1940 | €3 243 | ~€140 960 | E ~ | – | – | – |
| Koidu tn 67/2 | 1940 | €3 257 | ~€94 725 | E ~ | – | – | – |
| Koidu tn 68 | 2004 | €3 480 | ~€107 010 | C ~ | – | – | – |
| Koidu tn 68a | 1940 | €3 167 | ~€108 080 | E ~ | – | – | – |
| Koidu tn 68b | 1939 | €3 528 | ~€183 981 | D | 5,48 | ≈ €202 | KÜ report 2024 → |
| Koidu tn 69 | 1940 | €3 223 | ~€109 681 | E ~ | – | – | – |
| Koidu tn 70 | 2005 | €3 480 | ~€175 392 | C ~ | – | ≈ €150 | KÜ report 2025 → |
| Koidu tn 71 | 1926 | €3 201 | ~€169 038 | E ~ | – | – | – |
| Koidu tn 74 | 1931 | €3 185 | ~€170 557 | E | – | – | – |
| Koidu tn 75 | 1956 | €3 359 | ~€173 745 | F | 3,82 | ≈ €227 | KÜ report 2025 → |
| Koidu tn 76 | 1940 | €3 185 | ~€120 921 | E ~ | – | – | – |
| Koidu tn 79 | 1940 | €3 377 | ~€119 165 | E ~ | 3,81 | ≈ €156 | KÜ report 2025 → |
| Koidu tn 81 | 1930 | €3 257 | ~€201 408 | E ~ | – | ≈ €150 | KÜ report 2024 → |
| Koidu tn 83 | 1946 | €3 083 | ~€122 541 | D | 2,58 | ≈ €172 | KÜ report 2025 → |
| Koidu tn 84 | 1940 | €3 223 | ~€95 300 | E ~ | – | – | – |
| Koidu tn 87 | 1952 | €3 125 | ~€169 054 | E | 2,84 | ≈ €159 | KÜ report 2025 → |
| Koidu tn 88 | 1953 | €3 176 | ~€159 768 | F | 3,70 | ≈ €172 | KÜ report 2025 → |
| Koidu tn 89 | 1957 | €3 167 | ~€183 369 | F | 3,51 | ≈ €204 | KÜ report 2025 → |
| Koidu tn 92 | 1951 | €3 276 | ~€152 957 | F | 2,32 | ≈ €96 | KÜ report 2025 → |
| Koidu tn 96 | 1940 | €3 257 | ~€141 835 | E ~ | 1,64 | ≈ €89 | KÜ report 2025 → |
| Koidu tn 98 | 1940 | €3 257 | ~€119 064 | D | – | ≈ €30 | KÜ report 2024 → |
| Koidu tn 99 | 2020 | €4 679 | ~€205 911 | B | 1,03 | – | KÜ report 2025 → |
| Koidu tn 100 | 2011 | €4 206 | ~€385 940 | C | 2,43 | ≈ €220 | KÜ report 2025 → |
| Koidu tn 101 | 2020 | €4 567 | ~€249 358 | B | – | – | KÜ report 2025 → |
| Koidu tn 104 | 1960 | €3 150 | ~€130 684 | E | 4,27 | ≈ €117 | KÜ report 2024 → |
| Koidu tn 108 | 1957 | €3 419 | ~€170 950 | D | 3,45 | ≈ €188 | KÜ report 2025 → |
| Koidu tn 113a | 1940 | €3 574 | ~€175 356 | G | 3,12 | ≈ €137 | KÜ report 2024 → |
| Koidu tn 113b | 1947 | €3 401 | ~€148 092 | E | 3,91 | ≈ €176 | KÜ report 2025 → |
| Koidu tn 114 | 1956 | €3 298 | ~€159 048 | E ~ | 2,69 | ≈ €132 | KÜ report 2025 → |
| Koidu tn 118 | 1963 | €2 943 | ~€129 862 | E | 3,03 | ≈ €127 | KÜ report 2025 → |
| Koidu tn 122 | 1954 | €3 403 | ~€252 271 | E | 2,91 | ≈ €202 | KÜ report 2025 → |
Association cost comes from the latest filed annual report (€/m² per month and the median flat’s monthly payment); for an association managing several buildings the figure is association-wide. “–” means no reliable report or estimate. €/m² is an Estiq market-database estimate and the typical flat follows the building’s typical unit; “~” beside an energy class marks an estimate from construction year.
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