Egle 25

Utility building under 25 m²: store and workshop, no permit needed

Interior design

Materials cost

€10,600 – €15,200

incl. VAT · labour not included

Floor area: 20.8 m²
Plot from: 17 × 14 m
Paperwork: no documents (small building)

Request a design Change materials in the calculator What the price includes

A 6.2 × 4.0 m timber-frame utility building (a “small building” under 25 m² in Latvia) on a strip foundation below the frost line. One room for two uses: at the workshop end a 1800 × 2100 double door with no threshold, two windows over the bench and a 400 V socket for a machine; at the store end racks and a ladder to the loft floor. An extract fan over the bench, calculated natural ventilation and rainwater led to a soakaway. Unheated; gable roof in profiled steel.

Technical datafootprint 24.8 m² · height ≈ 4.0 m · gable, 25°

Total floor area: 20.81 m²
Footprint: 24.80 m²
Height: ≈ 4.0 m
Room height: 2.50 m
Roof: gable, 25°
Minimum plot: 17.2 × 14.0 m

Construction

Timber frame 145, uninsulated, larch boards

larch boards 22, oiled, battens, wind barrier, frame 45×145, OSB 12

Gable rafters, profiled metal

See other options in the calculator.

Floor plan

Dimensions in mm

№	Room	m²
1	Utility room	20.80
	Total floor area	20.81

Where the money goes

incl. VAT

The biggest items are walls and floors and windows and doors. Click a stage to see its materials.

Foundation€1,800 – €2,500
Walls and floors€3,000 – €4,600
Roof€1,200 – €2,200
Windows and doors€1,900 – €3,600
Services€700 – €1,200
External works€600 – €1,100
Delivery€500 – €900

Materials total: €10,600 – €15,200
Recommended contingency 10 %: +€1,100 – €1,500
Per m²: €509 – €730

Demo

Demo prices: the price database is still being checked against supplier and contractor quotes.

Not included: construction labour, plot, design and approvals, utility connections, landscaping, furniture and kitchen appliances. Prices as of 2026-09. How we estimate

Detailed estimate16 lines with quantities from the model

Item	Qty	Materials
Strip foundation 300, reinforced concrete	8.2 m³	€1,180 – €1,780
Concrete floor with a hardener on crushed stone	18.7 m²	€540 – €830
Timber frame 145, uninsulated, larch boards	46.3 m²	€2,130 – €3,550
Ceiling of an unheated building with a loft floor	20.8 m²	€430 – €660
Attic door in the gable with a portable ladder	1 pcs	€240 – €610
Gable rafters, profiled metal	38.1 m²	€1,160 – €2,230
PVC window, double glazing	3.0 m²	€470 – €1,330
External double door 1800×2100, insulated	1 pcs	€430 – €900
Steel external door	1 pcs	€130 – €400
Entrance canopy	2 pcs	€520 – €1,400
Ventilation grille with a wall sleeve (300×150…450×200)	2 pcs	€30 – €100
Wall extract fan Ø125 with a backdraught shutter	1 pcs	€50 – €110
Three-phase distribution board with residual current protection	1 pcs	€160 – €300
Electrical installation of an auxiliary building (certified electrician)	20.8 m²	€360 – €810
Rainwater drainage to a soakaway	1 pcs	€550 – €1,050
Delivery and offcut disposal	1 pcs	€490 – €860
Materials total incl. VAT		€10,600 – €15,200
With contingency		€11,700 – €16,700

Quantities from the Revit model v0.1: external walls 46.3 m², roof 38.1 m², windows 3.00 m².

Documents and details

PermitsLV building group (indicative): I · no documents (small building)

In Latvia a single-storey building with a footprint up to 25 m² is a “small building” (mazēka). Outside towns, and in towns on plots where a one- or two-apartment house is allowed, it needs no design documents at all. To register it in the cadastre and land register, file a construction notice in BIS. The relief does not apply in state-protected cultural monument areas. A terrace or porch built at ground level does not count towards the footprint. Distances to the boundary, plot coverage and other rules are set by the municipality’s land-use and building regulations. Check them with your local building board.

Rules checked 25.10.2026: Vispārīgie būvnoteikumi, Ēku būvnoteikumi, Būvniecības likums.

A pre-project is not permit documentation.

Drawings13 sheets · AR, BK, AVK, ŪK, EL · PDF A3

Architecture

BK · Structure · in Latvian

AVK · Heating and ventilation · in Latvian

AVK-1Ventilācijas plāns. Gaisa apmaiņaPDF

ŪK · Water and drainage · in Latvian

ŪK-1Lietus ūdens novadīšanaPDF

EL · Electrical · in Latvian

EL-1Elektroapgādes plāns. SS-1 shēmaPDF

Bill of materials77 items by construction stage

Quantity To order In the model

1Foundation12 items€1,800 – €2,500

No.	Material	Unit	OrderModel
Strip foundation LP-1, LP-2
1	Concrete C25/30 XC2/XF1 for the stripLP-1/LP-2model: 19.0 m centre line, mean height 1.44 m · +5 %	m³	8.78.2
2	Rebar B500B Ø12 and stirrups Ø8LP-1/LP-24Ø12 (0.888 kg/m) + stirrups Ø8 at 300 (0.395 kg/m) · +8 %	kg	161148
3	Formwork for the strip above groundLP-12 sides × 0.60 m (below ground cast in the trench) · +10 %	m²	25.222.8
4	Sand-gravel bed under the strip 100 mmLP-1width b + 200 · +15 %	m³	1.11.0
5	Bitumen coating for the outside and top of the stripLP-1above ground + 0.35 m below + top · +15 %	m²	19.817.1
Floor G-1 and base PS-1
6	Concrete C25/30 for the floor slabG-1model: 18.7 m² × 115 mm · +5 %	m³	2.32.1
7	Concrete floor hardener (dry shake)G-15 kg/m²	kg	9493
8	Reinforcement mesh Ø6 150×150G-1+ 10 % laps	m²	20.620.6
9	PE film 0.2 mmG-1+15 %	m²	21.518.7
10	Edge isolation strip 10 mmG-1along the strip	m	18.818.8
11	Crushed stone 16–32, compactedPS-1model: 300 mm; + 15 % compaction · +15 %	m³	6.55.6
12	Sand blinding 50 mmPS-1+15 %	m³	1.10.9

2Walls and floors16 items€3,000 – €4,600

No.	Material	Unit	OrderModel
External walls ĀS-1
13	Siberian larch cladding boards 22×140, verticalĀS-1net wall area (gables included) · +10 %	m²	51.046.3
14	Battens 25×50, softwoodĀS-1600 centres · +10 %	m	85.077.2
15	Wind barrier membraneĀS-1+ laps · +15 %	m²	53.346.3
16	Facade oil for larch, 2 coatsĀS-10.1 l/m² × 2	l	9.39.3
17	Frame C24 45×145 (studs, top plates)ĀS-1from the frame model: studs at ≤ 600, opening studs, plates · +10 %	m	171.7156.0
18	Bottom plate C24 45×145, treatedĀS-1wall length − the double door · +10 %	m	19.617.8
19	Headers C24 2×45×195ĀS-1from the frame model, 2 boards · +10 %	m	16.014.5
20	OSB-3 12 mm for the inner faceĀS-1inner lining and bracing · +10 %	m²	51.046.3
21	Damp-proof course under the bottom plateĀS-12 layers · +15 %	m	41.035.6
22	Anchor bolts M12 with chemical anchorĀS-1≤ 1.2 m centres + 2 at every corner	pcs	2323
Ceiling PR-1
23	Attic door in the gable 600×500, timber, with frame, hinges and lockBD-1model (BD-1)	pcs	11
24	Header over the attic door 2 × 45×195BD-12 × (opening + 2 × 50) · +10 %	m	1.61.4
25	Portable ladder, aluminium, extendingBD-1sill +2.85 above the ground	pcs	11
26	Ceiling joists C24 45×195 (ties)PR-1from the frame model: at every rafter pair + rims · +10 %	m	59.053.6
27	OSB-3 18 mm for the loft floorPR-1+10 %	m²	22.920.8
Frame fixings
28	Nails, screws, brackets, perforated straps~3 % of the frame timber value	set	11

3Roof15 items€1,200 – €2,200

No.	Material	Unit	OrderModel
Roof covering J-1
29	Profiled steel sheet, polymer coated, anti-condensation fleeceJ-1roof area on the slope; with fleece for an unheated building · +10 %	m²	42.038.1
30	Sheet-metal verge and ridge flashingsJ-1verges + ridge · +10 %	m	19.617.8
31	Eaves vent strip with insect meshJ-1both eaves; 10,000 mm²/m	m	14.414.4
32	Ventilated ridge rollJ-1ridge; 15,000 mm²/m	m	7.27.2
33	Roofing screws 4.8×35 with EPDM washerJ-17 pcs/m² · +10 %	pcs	294267
34	Battens 32×100J-1350 centres · +10 %	m	119.9109.0
35	Counter battens 25×50J-1along the rafters · +10 %	m	70.063.6
36	Breathable roof membraneJ-1+15 %	m²	43.938.1
Rafters
37	Rafters C24 50×150S-1from the rafter plan · +10 %	m	81.273.7
38	Ridge board C24 32×200KD-1from the rafter plan · +10 %	m	8.07.2
39	Wall plates C24 2×50×150M-1from the rafter plan, 2 boards · +10 %	m	26.924.4
40	Fascia boards 25×200 at the eavesV-1from the rafter plan · +10 %	m	15.914.4
41	Barge boards 25×200 at the gablesV-2from the rafter plan · +10 %	m	11.810.7
42	Rafter fixing bracketsBK-1at every rafter bearing on the plates	pcs	2828
43	Nail plates for the ridge and tie jointsBK-14 per pair of rafters	pcs	5656

4Windows and doors9 items€1,900 – €3,600

No.	Material	Unit	OrderModel
Doors and windows
44	External double door 1800×2100, steel, 40 mm insulated, with lock and boltD-1no threshold	pcs	11
45	Steel external door 900×2000 with lockD-2	pcs	11
46	PVC window 1200×1000, double glazed, openingL-1, L-2daylight at the bench	pcs	22
47	PVC window 1000×600, double glazed, openingL-3in the east gable	pcs	11
48	External sheet-metal window sillL-1…L-3window width + 100 mm · +10 %	m	4.13.7
49	External opening trims 20×95L-1…L-3, D-2, D-1 · +10 %	m	25.222.9
50	Fitting foam, sealing tapesall openings	set	11
51	Entrance canopy 1600×1200: timber frame, OSB, standing seam RAL 7016, steel brackets, drip edge, anchorsJT-1model (JT-1)	pcs	11
52	Entrance canopy 2400×1200: timber frame, OSB, standing seam RAL 7016, steel brackets, drip edge, anchorsJT-1model (JT-1)	pcs	11

5Services15 items€700 – €1,200

No.	Material	Unit	OrderModel
Ventilation
53	Ventilation grille 450×200 with insect mesh, aluminiumV-12 supply, 2 exhaust (AVK-1)	pcs	22
54	Inner grille 450×200 and wall sleeveV-1one per grille	pcs	22
55	Wall extract fan Ø125, 100 m³/h, IP44, with a backdraught shutter and an outside louvreV-2over the bench, on a switch	pcs	11
Electrical
56	Board IP44: 3P 40 A, RCD 30 mA, 5 MCBsSS-1	pcs	11
57	Cable Cu 3×1.5 mm²EL-1C1, C4: from SS-1 along the walls ×1.2 · +15 %	m	60.952.9
58	Cable Cu 3×2.5 mm²EL-1C2, C3: from SS-1 along the walls ×1.2 · +15 %	m	39.734.5
59	Cable Cu 5×2.5 mm²EL-1C5 to the 400 V socket K-400 · +15 %	m	6.35.5
60	LED batten luminaire IP65, 36 WG-1	pcs	33
61	Outdoor wall luminaire LED, IP44, with motion sensorG-2	pcs	22
62	Switches IP44S	pcs	33
63	Sockets IP44K	pcs	55
64	Power socket CEE 400 V, 16 A, IP44K-400	pcs	11
65	Boxes, cable trunking and conduit, fixingsEL-1surface mounted	set	11
66	Earthing kit (2 rods 1.5 m) and bondingEL-1separate building	set	11
67	Feeder cable Cu 5×6 mm² with Ø50 duct and warning tapeEL-1assumed 15 m from the house board · +15 %	m	17.315.0

7External works10 items€600 – €1,100

No.	Material	Unit	OrderModel
Rainwater drainage
68	Downpipe Ø90, coated steelŪK-1model (ŪK-1) · +10 %	m	5.65.0
69	Gutter Ø125, coated steelŪK-1model (ŪK-1) · +10 %	m	14.513.1
70	PVC 110 drain pipeŪK-1model (ŪK-1) · +10 %	m	10.39.3
71	Gutter bracketsŪK-1600 centres	pcs	2424
72	Gutter ends, outlets, bends, downpipe clipsŪK-1for 2 downpipes	set	11
73	Sand trap for the downpipe Ø110ŪK-1one per downpipe	pcs	22
74	Elbows and teesŪK-1elbows in the model + 1 tee	pcs	66
75	Soakaway: concrete rings Ø1000 (2 pcs) with lidLA-1LA-1, 1.5 m	pcs	11
76	Crushed stone 16–32, compactedLA-1300 mm round and under the soakaway · +15 %	m³	1.41.2
77	GeotextileLA-1round the stone · +15 %	m²	9.28.0

ΣGeneral list69 items

The same material from every stage summed into one order line, e.g. C24 50×200 for the floor and ceiling joists and the rafters. The order is rounded up from the sum.

No.	Material	Unit	OrderModel
1	Concrete C25/301 rows 1, 6 · +5 %	m³	10.910.3
2	Rebar B500B Ø12 and stirrups Ø81 · +8 %	kg	161148
3	Formwork for the strip above ground1 · +10 %	m²	25.222.8
4	Sand1 rows 4, 12 · +15 %	m³	2.21.9
5	Bitumen coating for the outside and top of the strip1 · +15 %	m²	19.817.1
6	Concrete floor hardener (dry shake)1	kg	9493
7	Reinforcement mesh Ø6 150×1501	m²	20.620.6
8	PE film 0.2 mm1 · +15 %	m²	21.518.7
9	Edge isolation strip 10 mm1	m	18.818.8
10	Crushed stone 16–321 7 rows 11, 76 · +15 %	m³	7.96.8
11	Siberian larch cladding boards 22×140, vertical2 · +10 %	m²	51.046.3
12	Battens 25×502 3 rows 14, 35 · +10 %	m	154.9140.7
13	Wind barrier membrane2 · +15 %	m²	53.346.3
14	Facade oil for larch, 2 coats2	l	9.39.3
15	Timber C24 45×1452 · +10 %	m	171.7156.0
16	Timber C24 45×145, treated2 · +10 %	m	19.617.8
17	Timber C24 45×1952 rows 19, 24, 26 · +10 %	m	76.569.5
18	OSB-3 12 mm2 · +10 %	m²	51.046.3
19	Damp-proof course under the bottom plate2 · +15 %	m	41.035.6
20	Anchor bolts M12 with chemical anchor2	pcs	2323
21	Attic door in the gable 600×500, timber, with frame, hinges and lock2	pcs	11
22	Portable ladder, aluminium, extending2	pcs	11
23	OSB-3 18 mm2 · +10 %	m²	22.920.8
24	Nails, screws, brackets, perforated straps2	set	11
25	Profiled steel sheet, polymer coated, anti-condensation fleece3 · +10 %	m²	42.038.1
26	Sheet-metal verge and ridge flashings3 · +10 %	m	19.617.8
27	Eaves vent strip with insect mesh3	m	14.414.4
28	Ventilated ridge roll3	m	7.27.2
29	Roofing screws 4.8×35 with EPDM washer3 · +10 %	pcs	294267
30	Battens 32×1003 · +10 %	m	119.9109.0
31	Breathable roof membrane3 · +15 %	m²	43.938.1
32	Timber C24 50×1503 rows 37, 39 · +10 %	m	108.098.1
33	Timber C24 32×2003 · +10 %	m	8.07.2
34	Boards 25×2003 rows 40, 41 · +10 %	m	27.725.1
35	Rafter fixing brackets3	pcs	2828
36	Nail plates for the ridge and tie joints3	pcs	5656
37	External double door 1800×2100, steel, 40 mm insulated, with lock and bolt4	pcs	11
38	Steel external door 900×2000 with lock4	pcs	11
39	PVC window 1200×1000, double glazed, opening4	pcs	22
40	PVC window 1000×600, double glazed, opening4	pcs	11
41	External sheet-metal window sill4 · +10 %	m	4.13.7
42	External opening trims 20×954 · +10 %	m	25.222.9
43	Fitting foam, sealing tapes4	set	11
44	Entrance canopy 1600×1200: timber frame, OSB, standing seam RAL 7016, steel brackets, drip edge, anchors4	pcs	11
45	Entrance canopy 2400×1200: timber frame, OSB, standing seam RAL 7016, steel brackets, drip edge, anchors4	pcs	11
46	Ventilation grille 450×200 with insect mesh, aluminium5	pcs	22
47	Inner grille 450×200 and wall sleeve5	pcs	22
48	Wall extract fan Ø125, 100 m³/h, IP44, with a backdraught shutter and an outside louvre5	pcs	11
49	Board IP44: 3P 40 A, RCD 30 mA, 5 MCBs5	pcs	11
50	Cable Cu 3×1.5 mm²5 · +15 %	m	60.952.9
51	Cable Cu 3×2.5 mm²5 · +15 %	m	39.734.5
52	Cable Cu 5×2.5 mm²5 · +15 %	m	6.35.5
53	LED batten luminaire IP65, 36 W5	pcs	33
54	Outdoor wall luminaire LED, IP44, with motion sensor5	pcs	22
55	Switches IP445	pcs	33
56	Sockets IP445	pcs	55
57	Power socket CEE 400 V, 16 A, IP445	pcs	11
58	Boxes, cable trunking and conduit, fixings5	set	11
59	Earthing kit (2 rods 1.5 m) and bonding5	set	11
60	Feeder cable Cu 5×6 mm² with Ø50 duct and warning tape5 · +15 %	m	17.315.0
61	Downpipe Ø90, coated steel7 · +10 %	m	5.65.0
62	Gutter Ø125, coated steel7 · +10 %	m	14.513.1
63	PVC 110 drain pipe7 · +10 %	m	10.39.3
64	Gutter brackets7	pcs	2424
65	Gutter ends, outlets, bends, downpipe clips7	set	11
66	Sand trap for the downpipe Ø1107	pcs	22
67	Elbows and tees7	pcs	66
68	Soakaway: concrete rings Ø1000 (2 pcs) with lid7	pcs	11
69	Geotextile7 · +15 %	m²	9.28.0

Quantities from the Revit model v0.1, stages as in the estimate. To order = model + waste for cutting and laps. Pre-project level: check with the builder before ordering.

By stage:CSV PDFGeneral:CSV PDF

What next

incl. VAT

Registering it in the cadastre? Prepare the BIS documents yourself, freeThe notice, a site plan on your own plot and the description from this design (in Latvian).

Drawings and estimateDrawings as PDF, DWG, IFC, the full estimate, the bill of materials to order and the assembly steps; interior design in your account
€59
With documentsA small building up to 25 m² needs no construction documents
—
Your own designAdapting this design / a new design for your needs
€149 / €249

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