Contents
The short answer. In Riga’s serial blocks — the Lithuanian project, the 103, 119, 467 and 602 series, or "Khrushchyovkas" — a renovation succeeds or fails on what the site visit reveals. Before the quote, find out:
- which walls are load-bearing;
- what state the utilities and shared risers are in;
- whether earlier, unapproved alterations have already been made.
In 2026 Riga municipality specifically stated that reconstructing load-bearing walls in serial large-panel blocks on a notification and without strengthening is unauthorised construction. RigaBuild’s indicative starting price for a major renovation is from €300/m², with an indicative duration of 4–9 weeks (26 October 2026; excluding VAT, labour only).
Key takeaways
- The series name helps you orient yourself, but the actual structure must be checked against the building’s documents or with a construction specialist.
- Altering load-bearing walls is not a simple renovation — it needs a building-board procedure.
- Risers, ventilation and the external envelope are common property.
- Keep room in the budget for items that only become known after strip-out.
Why serial blocks are different
Serial blocks were built to standard designs, so flats in the same series often have similar layouts. That helps with planning — but only partly. Each flat differs in the building’s age, earlier renovations and the state of the common property. So this article gives no "recipe" per series; instead it lists the questions to answer in any serial-block flat.
In practice, most surprises come from three places:
- structure — which wall is load-bearing, and whether previous owners altered it;
- utilities — old pipes and wiring whose condition only shows once finishes are removed;
- common property — risers, ventilation, windows and the loggia, where changes affect other owners whatever your plans.
Checks before the quote (checklist)
| What to check | Why | Who checks |
|---|---|---|
| Which walls are load-bearing | Decides whether a layout change is possible at all, and which procedure applies | Building design documents or a construction specialist |
| Earlier alterations in the flat | Unapproved changes can cause problems on sale and in a new renovation | Building board, BIS records, the owner |
| Condition of the risers | They are common property; replacement may need the house manager | House manager, contractor on the site visit |
| Electrical wiring | Old wiring may not suit today’s loads | Electrician on the site visit |
| Floor and ceiling levels | Unevenness adds preparation work | Contractor on the site visit |
| Ventilation | Shared shafts must not be blocked or altered without approval | House manager |
| Windows and loggia | Changes to the external envelope have their own rules | Building board, house manager |
If you are only planning to buy the flat, go through this list before the purchase: it will show you the real scope of the renovation.
Load-bearing walls and layout changes
Cabinet Regulation No. 529 Ēku būvnoteikumi (Building Construction Regulations) defines creating, altering or closing openings in load-bearing structures as simplified reconstruction. In an apartment block this usually needs an explanatory memo, and other structural changes need a building design and permit. On 4 February 2026, Riga municipality stated:
- construction affecting load-bearing or external enclosing structures cannot be approved on a notification;
- reconstruction of load-bearing walls in serial large-panel blocks, done on a notification and without strengthening, counts as unauthorised construction.
If you want to open the kitchen into a room or widen a doorway, first find out whether the wall is load-bearing. If it is, expect design work, a building-board procedure and a longer schedule. If it is not, the nature of the works still decides the procedure. More on documents in Documents before a flat renovation in Latvia.
Bathroom and utilities
In serial-block flats the bathroom is often small, and the shared risers run through it. This affects:
- layout — where a wall-hung WC, a shower area and a washing machine can go;
- access — the Apartment Property Law requires owners to allow access to utilities and structures, so risers must not be sealed off completely;
- timing — if the risers are being replaced in all or part of the building, align that with your renovation.
The bathroom order of works is covered in Bathroom renovation sequence, and the service is described on the bathroom renovation page.
Common property: risers, windows, loggia
The Apartment Property Law counts as common property the external enclosing structures (including windows and loggias), the internal load-bearing structures including load-bearing walls, the floor slabs and the building’s utility systems (Section 4). It also requires owners to treat common property with care and follow the decisions of the owners’ community. If construction affects other owners’ rights, Cabinet Regulation No. 529 requires their consent — for example a general-meeting decision or a voting record.
To glaze a loggia in a group 2 or group 3 building without construction intention documents, you need an approved sketch or passport of the building’s appearance and the façade glazing. The alternative is to follow a model sketch for standard residential buildings approved by the municipality. Before ordering, ask the house manager whether the building already has an approved solution.
Renovating an apartment in a serial block? Request a quote — on the site visit RigaBuild will assess the base surfaces, the utilities and which changes may affect the structure.
Timing and budget
| Renovation type | Indicative starting price | Indicative duration |
|---|---|---|
| Cosmetic renovation | from €90/m² | 2–6 weeks |
| Apartment renovation | from €280/m² | depends on scope |
| Major renovation | from €300/m² | 4–9 weeks |
| Bathroom renovation | from €3,000 per project | depends on scope |
Prices and timelines are valid on 26 October 2026; prices exclude VAT and cover labour; materials are separate. Timelines are guides, not guarantees, and run from the start of works. If a building-board procedure is needed, its time comes on top. More on timelines in How long does an apartment renovation take. In a serial-block flat it is especially important that the quote includes items that only become known after strip-out. For the cost structure by renovation type, see Apartment renovation cost in Riga.
Common questions
Questions selected from search data and typical questions; they are not questions from specific clients. Answers are for information only.
Can I knock through a wall in a Lithuanian-project flat? It depends on whether the wall is load-bearing. If it is, the work is at least a simplified reconstruction with a building-board procedure, and in Riga it cannot be filed as a notification. Check the building design first or consult a construction specialist.
How much does renovating a Soviet-era flat cost? RigaBuild’s indicative starting prices: cosmetic renovation from €90/m², apartment renovation from €280/m², major renovation from €300/m² (excluding VAT, labour only, as of 26 October 2026). The site visit sets the final figure.
Can I glaze the loggia? Without construction intention documents, only with an approved sketch or passport, or under the municipality’s model sketch. Ask the house manager and the building board.
What should I check before buying a flat to renovate? Load-bearing walls and earlier alterations, the state of the risers and wiring, the windows and the loggia. The checklist in this article helps you do it systematically.
Sources
- Rīgas pašvaldība pastiprināti pārbaudīs būvniecības paziņojumus — Riga City Municipality (published on LV portāls, 04.02.2026); accessed 26.10.2026.
- MK 02.09.2014. noteikumi Nr. 529 "Ēku būvnoteikumi" — Cabinet of Ministers (likumi.lv); version in force 01.10.2026–07.01.2027 (including the amendments made by Cabinet Regulation No. 564 of 22.09.2026); accessed 26.10.2026.
- Būvniecības likums (Section 1(4), (9), (14); Section 18(2)) — Saeima (likumi.lv); version in force 01.08.2026–07.01.2027; accessed 26.10.2026.
- Dzīvokļa īpašuma likums (Sections 4, 9, 10) — Saeima (likumi.lv); version in force from 29.05.2026; accessed 26.10.2026.
Prices and timelines: RigaBuild Pricing page, service pages and the renovation timeline article (accessed 26 October 2026).
Planning a renovation in a serial-block apartment? Get a first estimate in the renovation calculator and request a quote after a site visit.
Prepared by the RigaBuild editorial team. Prices, timelines and sources checked on 26 October 2026. This article is for information only and does not replace legal advice or a building-board decision.