Koidu tn 23 (Tallinn, Kesklinna linnaosa) is a 1994 4-story residential building, 9 apartments (EHR 101034307). Estiq AVM model benchmark is 2 974 €/m² (range 2 691–3 257 €/m²) as of Oct 18, 2026.
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Koidu tn 23 is a 4-storey residential building built in 1994, with 9 apartments, energy class E. The Estiq AVM benchmark is €2 974/m², 20.2% below the Kesklinna median (notarised apartment transaction median €3 727/m², 2026 Q3, n=408).
Koidu tn 23 is a 4-storey residential building completed in 1994 in Kesklinna, with 9 apartments. Load-bearing structure: Brick / Masonry (EHR register). The most common unit type is 3-room apartments (4 of them). Energy class E (per energy certificate).
The Estiq AVM baseline for apartments in this building is 2 974 €/m², approximately 20.2% below the Kesklinna median (notarised apartment transaction median €3 727/m², 2026 Q3, n=408). The typical unit (3-room, 62 m²) comes to about €186 248.
First-time home buyers, 1–2 person households, and rental investors.
Energy class E, open surface parking, and 1994 construction vintage.
Market rent for typical 3-room apartment (3 listings within 500 m, matched building era).
📊 Market data · 3 listings within 500 m, matched building eraEstimated gross yield (derived from real rental market listings).
from market dataOfficial Building Register (EHR) apartment types and Estiq valuation ranges.
| Apartment | Count | Typical Size | €/m² | Value Range |
|---|---|---|---|---|
| 1-room | 1 | 33.4 m² | €3 331 | €100 686–€121 825 |
| 2-room | 1 | 48.1 m² | €3 108 | €135 293–€163 697 |
| 3-room | 4 | 60.4 – 85.6 m² | €3 004 | €183 507–€222 033 |
| 4-room | 3 | 60.3 – 88.9 m² | €2 974 | €209 935–€254 009 |
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A. Adamsoni stop 297 m / 4 min; fast connection to city centre.
Weight 20%Kaarli Kool 62 m; kindergarten 356 m.
Weight 15%39% of hours good, 23% poor (12-month mean, level: high), noise level 62 dB (noisy), modelled (Lden), nearest park Falgi park 219 m. Sources: Estiq noise model (CNOSSOS-EU); Estiq air-quality index derived from Keskkonnaagentuur data.
Weight 10%PPA open data (H3 cell (~0.7 km²), 24 months to 14.10.2026, n=83): above-average incident level; last 12 months vs previous 12: -35.1%.
Weight 10%Built in 1994; structure Brick / Masonry.
Weight 15%EHR energy certificate E (issued 26.09.2017); heating type District Heating.
Weight 10%Falgi park 219 m; supermarket 89 m.
Weight 10%Land Board transaction volume in this micro-location (83 transactions over the last 4 quarters in the "built 1991-2000" cohort).
Weight 10%Official open data and Estiq models for this building’s location. They describe the area, not a specific apartment. How we calculate this.
Police and Border Guard Board open data list 83 recorded incidents in the surrounding ~0.7 km² cell over 24 months (data to 14.10.2026). Last 12 months vs the 12 before: -35%.
Counts incidents reported to the police, not how safe it feels.
Of 3 330 hourly readings in the last 12 months (07.12.2025–25.10.2026, this building’s cell (~0.1 km²)): 39% in the two best classes, 38% in the middle one and 23% in the two worst of five.
Estimated road noise is 9 dB above the WHO recommended level (53 dB Lden).
Radon concentration in soil gas. Based on measurements in this cell. That is above the 50 kBq/m³ threshold from which new buildings need radon-safe construction (EVS 840). Municipality-wide class: Kõrge või väga kõrge.
A soil-gas reading, not the flat’s indoor air; mainly relevant to basements and ground floors.
Transactions 2024 Q4–2026 Q3 · Land Board · Kesklinna · built 1991-2000 cohort.
Notary-deal €/m², year-on-year change and deal activity at neighbourhood, district and city level.
| Level | €/m² | Building vs | YoY | Deals, 4 qtrs | Direction |
|---|---|---|---|---|---|
| Neighbourhood: Kassisaba asum2026 Q3 | €3 471 | −14.3% | −6.0% | — | — |
| District: Kesklinna linnaosa2026 Q3 | €3 728 | −20.2% | +3.2% | 1 659 (+2.2%) | Steady |
| City: Tallinn2026 Q3 | €2 949 | +0.8% | +3.4% | — | — |
Source: Land Board notary deals, latest finished quarter. Activity = deals in the last 4 quarters vs the 4 before. "Warming" or "cooling" only when both price (±3%) and activity (±10%) move the same way on at least 30 deals; otherwise "steady". We do not measure days on market.
Within a 10-minute walk, there are 19 key infrastructure facilities · Coordinates 59.431438, 24.730230 · Cadastre 78401:108:0090.
Official open data from Statistics Estonia REL2021 census and Building Register EHR.
Peak construction era: 1919–1945.
Values read from EHR and the Land Board cadastre; fields the registers do not hold are not shown.
| Year Built | 1994 |
| Total Apartments | 9 |
| Floors | 4 |
| Energy Class | E |
| Land Ownership | Private ownership · apartment ownership |
| Plot Size | 546 m² |
| Heating System | District Heating |
| Load-bearing Structure | Brick / Masonry |
| Elevators | 0 |
| Noise Level | 62 dB (noisy) |
Only what Estiq reads from EHR and the cadastre WFS. Estiq does not track fire-safety or lift inspections.
Code 101034307 · record updated 30.05.2025.
Brick / Masonry · lifts per EHR: 0.
EHR Portal (code: 101034307) →78401:108:0090 · plot area 546 m².
Land use: 90% Elamumaa, 10% arimaa.
Cadastral Map (78401:108:0090) ↗
The building is managed by apartment association Tallinn, Koidu tn 23, Koidu tn 23b korteriühistu (registry code 80362823). Figures are from the association's 2025 annual report (e-Business Register).
Management & Association Report: Aruandeaastal teostati remonditöid 14 413 € eest. Remondifondi jääk aasta lõpus oli 17 439 €.
| Financial year | 2025 | 2024 |
|---|---|---|
| Member fees | €31 093 | €38 463 |
| Repair spending | €14 413 | €29 699 |
| Repair fund balance | €17 439 | €17 439 |
| Loans outstanding | €94 906 | €103 044 |
| Cash | €7 958 | €4 920 |
| Result for the year | €11 213 | −€1 859 |
members: 4 private + 1 companies.
Source: apartment association annual reports (e-Business Register). Comparison: median and quartiles of apartment associations in Kassisaba subdistrict, same year.
Land & Spatial Board In-ADS address object (ADS-OID: EE00651507) · Postal code: 10136
7 buildings on the street · street median €3 347/m² (n=7) · real-time filterable comparison.
| Address | Year Built | Estiq €/m² | Typical Unit | Energy Class | |
|---|---|---|---|---|---|
| Koidu tn 12 | 1948 | €3 347 | ~€175 383 | E | View → |
| Koidu tn 16 | 2008 | €3 183 | ~€141 788 | D | View → |
| Koidu tn 27 | 2002 | €3 684 | ~€265 236 | F | View → |
| Koidu tn 44 | 2012 | €4 311 | ~€358 236 | B ~ | View → |
| Koidu tn 70 | 2005 | €3 419 | ~€172 318 | C ~ | View → |
| Koidu tn 83 | 1946 | €3 267 | ~€131 111 | D | View → |
| Koidu tn 114 | 1956 | €3 318 | ~€162 996 | E ~ | View → |
Direct data linkages, authoritative registries, and update timestamps.
| Data Dimension | Official Source | Governing Authority | Data as of | Status |
|---|---|---|---|---|
| Building Specs | EHR · 101034307 | Maa- ja Ruumiamet | 18.10.2026 (EHR record 30.05.2025) | Confirmed |
| Cadastral Unit & Land Zoning | Land & Spatial Board · 78401:108:0090 ↗ | Land & Spatial Board | 04.10.2026 | Confirmed |
| Notarized Sales Transactions | Land Board Transactions Database | Land & Spatial Board | 09.2026 | Synchronized |
| Demographics & Census Data | Population Register & RL21 | Statistics Estonia | annual (2021 census) | Official |
| Safety & Environmental Monitoring | Noise Maps, Air Quality & Police | Police Board / Environment Agency | model estimate | Statistical |
| Market Rent & Gross Yield | Estiq rental database · 3 listings within 500 m, matched building era · yield 4,2–5,2% | Estiq Rental Intelligence | 10.2026 · n=3 | Market Data |
| Valuation Methodology | Estiq AVM | Comparable sales approach (not EVS 875 certified appraisal) | 2026 model weights | Statistical |
The energy performance certificate reflects the heating efficiency and energy consumption intensity of the building.
| E · this building | Higher Energy Demand | Noticeable heat loss; typical of older housing stock |
Structured answers compiled for buyers, sellers, search engines, and AI systems.
Koidu tn 23 is a 4-story apartment building constructed in 1994, located in Kesklinna linnaosa, comprising 9 apartments. The EHR registry code is 101034307 and cadastral ID is 78401:108:0090. Estiq reports energy class E.
The Estiq AVM model estimate is 2 974 €/m². The valuation range spans 2 691–3 257 €/m². The calculated fair value of a typical 3-room apartment is approximately €186 248.
Based on the 2 974 €/m² benchmark, a 40 sqm apartment is indicatively valued at €118 960 and a 50 sqm apartment at €148 700. Actual value depends on interior condition, floor, parking, and storage.
1-room: €100 686–€121 825; 2-room: €135 293–€163 697; 3-room: €183 507–€222 033; 4-room: €209 935–€254 009.
The model-based indicative asking price is approximately €3 154/m² (for the typical 3-room unit, about €195 560), allowing a 3–5% negotiation buffer.
A 3-room apartment in good condition has an estimated market rent of €650–€800 per month, generating an estimated gross yield of 4,2–5,2%.
Buying means a loan payment of about €770 a month, renting €650–€800 — the loan payment is 6% above the rent. That is 36% (loan) and 34% (rent) of the median gross wage (Tallinn, €2,126, Q2 2026, Statistics Estonia). Assumes the typical 3-room flat (62.0 m²) at €186,248 (Estiq estimate), an 80% loan over 25 years at 3.8% and a €37,250 down payment; rent from nearby offers; association and state fees excluded.
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.
According to the apartment association's 2025 annual report, a typical flat paid the association €124 per month, plus utilities. The repair fund held €17 439 at year end. The association had €94 906 of loans outstanding. See the association figures.
No. For a mortgage the bank needs a certified valuer's report under EVS 875 — order a valuation.
Median error is 9.5% in Tallinn and 12.1% elsewhere in Estonia; 83% of Tallinn estimates fall within ±20% (blind test, May–September 2026). Atypical properties have larger errors — see the methodology.
Sale prices — notarised apartment sales, Maa- ja Ruumiamet; estimates — the Estiq AVM model; rents — Estiq market database (24 months); wages — Statistics Estonia (PA117); building data — building register (EHR); association costs — housing associations' annual reports; noise and air — national noise maps and air monitoring. Figures refresh with every data load and each states its period and sample — see the methodology.
Building data reconciled against the EHR and Land Board (Maa-amet) registries. AVM methodology by Martin Koppel, Estiq real estate valuation advisor (methodology aligned with the EVS 875 standard). This is an automated model estimate, not an EVS 875 appraisal report. Updated 18.10.2026.
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