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Estiq Value / Tallinn / Mustamäe / Siili tn / Siili tn 21/1
✓ Verified May 1, 2026 Mustamäe · Tallinn

Siili tn 21/1, Tallinn

Built in 1984, this 5-story residential building is located in Mustamäe linnaosa · 35 apartments · energy class B.

Siili tn 21/1, Tallinn hoone ja korterite väärtuskaart
5 floors 35 apartments EHR 101020140 ↗ Cadastre 78405:504:0002 100% Residential Land (Freehold)

Estiq consolidates apartment price levels, AVM valuation, market trends, micro-location, living environment, EHR technical parameters, and official registry certificates in one view.

Value your apartment in this building → Consult a Mustamäe specialist

Automated Market Valuation & Building Benchmark

Siili tn 21/1 is a 5-storey residential building built in 1984, with 35 apartments, energy class B. The Estiq AVM benchmark is €3 043/m², 11.5% above the Mustamäe median (notarised apartment transaction median €2 729/m²).

Siili tn 21/1 is a 5-storey residential building completed in 1984 in Mustamäe, with 35 apartments. Load-bearing structure: Brick / Masonry (EHR register). The most common unit type is 2-room apartments (15 of them). Energy class B (per energy certificate).

Based on the Estiq valuation model and Land Board transaction registries, the building price benchmark is 3 043 €/m², which is approximately 11.5% above the Mustamäe median (notarised apartment transaction median €2 729/m²). The building demonstrates high transaction liquidity for 2-room units, with a typical market value of around €145 151.

✓ Well Suited For

First-time home buyers, 1–2 person households, and rental investors.

⚠ Key Considerations

Energy class B, open surface parking, and 1984 construction vintage.

€560–€650/mo

Modelled monthly rent for a 2-room unit (not a market measurement).

4,6–5,4%

Estimated gross rental yield for investment.

Apartment Prices & Room Breakdown

Official Building Register (EHR) apartment types and Estiq valuation ranges.

Apartment Count Typical Size €/m² Value Range
1-room 6 30.2 – 37 m² €3 195 €88 284–€112 362
2-room 15 43.3 – 57.6 m² €3 043 €127 733–€162 569
3-room 10 57.7 – 73.8 m² €2 921 €165 282–€210 359
4-room 4 76.7 – 85.6 m² €2 830 €206 703–€263 077
Most units in the building vary: actual transaction prices depend directly on floor level, interior condition, basement storage, and parking rights.

Apartment Instant Valuation Calculator

Building benchmark + apartment-specific attributes. Select parameters to see calculated fair market value.

1-room · 31.4 m² 2-room · 47.7 m² 3-room · 64.3 m² 4-room · 83 m²
− 47,7 m² +
Needs repair −10% Good condition Renovated +10%
1st floor −2% Middle floor Top floor
Balcony / loggia +€3 000 Basement storage +€2 000 Parking space +€5 000
Calculated Fair Market Value
€150 151
ca €3 148 / m² · model estimate
Suggested Listing Price €157 659
Expected Monthly Rent €560–€650/mo
Price per m² €3 148/m²
Negotiation buffer 3–5%
Methodology: automated statistical AVM valuation based on official Land Board sales records. Does not substitute a certified appraisal report under EVS 875 standards.

Estiq Building Scorecard™

8-dimensional audit of living environment, safety, infrastructure, and market liquidity.

Composite Score
7,9 / 10
Location & Transit9,3

Tüve stop 62 m / 1 min; fast connection to city centre.

Weight 20%
Education & Schools6,0

Tallinna Tehnikagümnaasium 614 m; state exams rating 51.4/100; kindergarten 249 m.

Weight 15%
Air Quality & Environment7,7

AQI 1 (good), noise level 56 dB (noticeable), modelled (Lden), nearest park Parditiigi park 70 m. Sources: Estiq noise model (CNOSSOS-EU); Estiq air-quality index derived from Keskkonnaagentuur data.

Weight 10%
Safety & Crime Risk6,9

Police open data (PPA): stable local safety baseline (1y trend: +195.7%), compliant fire safety standards.

Weight 10%
Condition & Vintage7,1

Built in 1984; load-bearing structure Brick / Masonry.

Weight 15%
Energy Efficiency & Heating8,9

EHR / KredEx registered energy class B; heating type District Heating.

Weight 10%
Lifestyle & Infrastructure9,2

Parditiigi park 70 m; grocery stores 90 m.

Weight 10%
Market Liquidity & Demand8,1

Land Board transaction volume in this micro-location (375 transactions over 12–18 mo. in the "built 1971-1990" cohort).

Weight 10%

Price Trends & Sales Strategy

Transactions in last 12 months · Land Board · Mustamäe · built 1971-1990 cohort.

Quarterly sales price €/m² (Sample: 375 deals · built 1971-1990)
Sales ✨ Next Q Forecast +0.7% YoY
Siili tn 21/1 AVM benchmark: €3 043/m² €2 230 2025 Q2 84 deals €2 383 2025 Q3 92 deals €2 395 2025 Q4 82 deals €2 492 2026 Q1 79 deals €2 246 2026 Q2 38 deals €2 350 2026 Q3 ✨ Forecast

Sales Strategy

AVM Fair Market Value
€3 043/m²
Price Band
€2 678–3 408
Suggested Listing Price
€152 409
Asking Price€3 195/m²
Negotiation room~3–5%

Location Map & 10-Min Proximity

Within a 10-minute walk, there are 17 key infrastructure facilities · Coordinates 59.406071, 24.708577 · Cadastre 78405:504:0002.

🚏 Tüve stop
Transit Stop · Bus / Local transit
62 m · 1 min
🌳 Parditiigi park
Park · Recreation & walking
70 m · 1 min
🛒 Sõpruse Rimi Super
Supermarket · Groceries & daily goods
90 m · 1 min
🧒 Tallinna Allika Lasteaed
Kindergarten · Pre-school education
249 m · 3 min
🚏 Retke tee stop
Transit Stop · Bus / Local transit
269 m · 4 min
🛒 Sõpruse Maxima X / Grossi
Supermarket · Groceries & daily goods
298 m · 4 min
🚏 Retke tee stop
Transit Stop · Bus / Local transit
312 m · 4 min
🧒 Tallinna Sõbrakese Lasteaed
Kindergarten · Pre-school education
348 m · 5 min
🚏 Retke tee stop
Transit Stop · Bus / Local transit
388 m · 5 min
🧒 Tallinna Lepistiku Lasteaed
Kindergarten · Pre-school education
499 m · 7 min
🌳 Lepistiku park
Park · Recreation & walking
599 m · 8 min
🎓 Tallinna Tehnikagümnaasium
School · Exam rating: 51.4/100
614 m · 8 min
🧒 Tallinna Linnupesa Lasteaed
Kindergarten · Pre-school education
779 m · 10 min
🛒 Magistrali Keskus Rimi Hyper
Supermarket · Groceries & daily goods
892 m · 12 min
🛒 Tondi Selver
Supermarket · Groceries & daily goods
906 m · 12 min
🎓 Tallinna 32. Keskkool
School · Exam rating: 69.5/100
965 m · 13 min
🎓 Tallinna Mustamäe Reaalgümnaasium
School · Exam rating: 54.5/100
1022 m · 14 min
Exceptional walking accessibility underpins the strong micro-location rating of this building.

Neighborhood Vintage & Demographics: Mustamäe linnaosa

Official open data from Statistics Estonia REL2021 census and Building Register EHR.

Resident Age Distribution

66 333 residents
0–17 (Children & youth) 17.3% · 11 493
18–64 (Working age) 61.6% · 40 890
65+ (Seniors & retirees) 21% · 13 950

Education Level (15+)

56 459 residents
Basic or primary education 13.4% · 7 551
Secondary / vocational education 39.5% · 22 298
Higher education (BSc, MSc, PhD) 44.9% · 25 342
Education unknown 2.2% · 1 268

Construction Era & Housing Stock

34 988 dwellings
Pre-War & Historic (< 1945) 0% · 14
Soviet Era (1946–1990) 85.7% · 29 985
Post-Independence (1991–2010) 6.8% · 2 368
Modern Developments (2011+) 6.1% · 2 126

Peak construction era: 1961–1970.

Energy Efficiency Distribution A–G

34 989 dwellings
A 2.4% · 842
B · this building 3.7% · 1 284
C 5.3% · 1 855
D 1.5% · 514
E 87.1% · 30 480
F–G 0% · 14

Building Technical Profile (At a Glance)

Official parameters verified against EHR and Land Board registries.

Year Built1984
Total Apartments35
Floors5
Energy ClassB
Land Ownership100% Residential Land (Freehold)
Plot Size4 920 m²
Heating SystemDistrict Heating
Load-bearing StructureBrick / Masonry
Elevators1
Staircases2
Parking Spaces36
Noise Level56 dB · noticeable

EHR Technical Audit & Official Registries

Technical compliance, fire safety, elevator inspections, cadastre, and audit records.

Audits Valid

EHR · Building Register

Code 101020140 · primary occupancy permit issued.

Occupancy Permit Active

Brick / Masonry. According to EHR records, there are no outstanding enforcement orders.

View in Building Register (EHR) ↗

Rescue Board Fire Safety Inspection

Periodic inspection completed.

Fully Compliant

Evacuation corridors clear, fire barrier doors compliant, smoke extraction systems tested.

CPRA (TTJA) Elevator & Equipment Audit

1 passenger elevators have passed periodic technical inspection.

Valid

Elevators comply with applicable TTJA safety standards.

Cadastral & Land Use Status

78405:504:0002 · plot area 4 920 m².

100% Residential Land (Freehold)

Official designated purpose of the property is 100% residential land.

Apartment buildings on Siili tn

22 buildings on the street · street median €2 678/m² (n=22) · real-time filterable comparison.

Address Year Built Estiq €/m² Typical Unit Energy Class
Siili tn 3 1985 €2 531 ~€124 538 E View →
Siili tn 6 1971 €2 673 ~€131 532 C View →
Siili tn 6a 1985 €2 458 ~€120 922 E ~ View →
Siili tn 7a 1985 €2 514 ~€123 666 B View →
Siili tn 7b 1988 €2 605 ~€128 176 A View →
Siili tn 7c 1983 €2 671 ~€131 437 A View →
Siili tn 8 1971 €2 543 ~€125 107 D View →
Siili tn 10 1971 €2 844 ~€139 928 C View →
Siili tn 21/1 This building 1984 €3 043 ~€145 151 B Active

Official Data Sources & Registry Verification

Direct data linkages, authoritative registries, and update timestamps.

Data Dimension Official Source Governing Authority Last Verified Status
Building Specs & Occupancy Permit EHR · 101020140 Ministry of Regional Affairs last synced · 01.05.2026 Valid
Cadastral Unit & Land Zoning Land & Spatial Board · 78405:504:0002 Land & Spatial Board last synced · 01.05.2026 Confirmed
Notarized Sales Transactions Land Board Transactions Database Land & Spatial Board last synced · Q2/Q3 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 last synced · 01.05.2026 Checked
Market Rent & Gross Yield Model assumption: 4,6–5,4% gross yield on the Estiq AVM value; the monthly rent is derived from it, not measured Estiq AVM 2026 model parameters Statistical
Valuation Methodology Estiq AVM EVS 875 Valuation Framework 2026 model weights Statistical

Building Energy Rating Guide

The energy performance certificate reflects the heating efficiency and energy consumption intensity of the building.

A Nearly Zero Energy Building Extremely low energy demand
B · this building Low Energy Building Very high thermal performance
C Energy Efficient Good standard efficiency
D Average / Refurbished Moderate heating expenses
E Higher Energy Demand Noticeable heat loss; typical of older housing stock
F–G High / Very High Consumption Requires substantial energy efficiency renovation

Key Risk Factors

  • Built in 1984: technical utility systems require periodic updating and capital maintenance.
  • energy class B: low-energy building with efficient and stable winter heating costs.
  • Parking: on-grade surface parking on parcel/street; no separate underground garage.
  • Valuation nuance: bank collateral value for a specific unit depends fundamentally on interior finish.

Frequently Asked Questions (FAQ)

Structured answers compiled for buyers, sellers, search engines, and AI systems.

What building is located at Siili tn 21/1, Tallinn?

Siili tn 21/1 is a 5-story apartment building constructed in 1984, located in Mustamäe linnaosa, comprising 35 apartments. The EHR registry code is 101020140 and cadastral ID is 78405:504:0002. Estiq reports energy class B.

What is the average price per sqm and market value for apartments at Siili tn 21/1?

The Estiq AVM model estimate is 3 043 €/m². The valuation range spans 2 678–3 408 €/m². The calculated fair value of a typical 2-room apartment is approximately €145 151.

How much does a 40 sqm or 50 sqm apartment cost at Siili tn 21/1?

Based on the 3 043 €/m² benchmark, a 40 sqm apartment is indicatively valued at €121 720 and a 50 sqm apartment at €152 150. Actual value depends on interior condition, floor, parking, and storage.

How are apartment prices distributed by room count?

1-room: €88 284–€112 362; 2-room: €127 733–€162 569; 3-room: €165 282–€210 359; 4-room: €206 703–€263 077.

At what asking price should a seller list?

The strategic recommended listing price is approximately €3 195/m² (for a 2-room unit, about €152 409), allowing a 3–5% negotiation buffer.

How much rental income can a 2-room apartment generate?

A 2-room apartment in good condition has an estimated market rent of €560–€650 per month, generating an estimated gross yield of 4,6–5,4%.

Is Siili tn 21/1 a good rental investment?

Data indicates that compact apartment layouts, proximity to transit (62 m to stop), and active district tenant demand are positive investment drivers. Prior to purchasing, inspect individual apartment condition, utility costs, and actual occupancy demand.

Does the Estiq online valuation replace a bank-certified appraisal?

No. Estiq AVM is a data-driven statistical benchmark. Mortgage financing applications require a certified appraisal report performed by a licensed appraiser in accordance with EVS 875 standards.

How accurate is the Estiq automated valuation (AVM)?

The Estiq AVM reports a confidence band by comparable-transaction volume: ±5–8% where comparables are plentiful, ±10–14% with moderate data, ±18–25% where data is sparse. Accuracy is higher in active areas and lower for atypical properties. It is a statistical benchmark, not an EVS 875 report. See the methodology page.

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 01.05.2026.

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