Second Storey Addition
Second Storey Addition
in Valencia
Second storey addition in Valencia for owners of single-storey houses who need more space but want to stay on their own plot.
We start with an honest structural assessment — can the foundation and walls carry a new floor — before we ever get to design, staircase, roof or facade.
Building Upward
Second Storey Addition in Valencia, Spain
Planning to add a second storey above an existing house in Valencia, Spain? squaremeter Reformas manages these projects from the initial structural assessment through to the finished floor. We work on single-storey houses in Valencia, Mislata, Paterna, Torrent, Burjassot, Alboraya, Manises, Quart de Poblet, Xirivella and Paiporta — where land is expensive or the plot is small and families need more room.
- ✓ Full second storey added above a single-storey house
- ✓ Mandatory structural assessment before design begins
- ✓ We work with private homeowners and investors
- ✓ English-speaking team
- ✓ Transparent quote before work starts
Second Storey Addition Valencia
From Structural Assessment
to a Finished Floor
Step 1
Initial
Consultation
We discuss your house, why you need a second floor, budget and timeline.
Step 2
Structural
Assessment
An architect and structural engineer inspect the foundation and load-bearing walls of your house.
Step 3
Design & Licencia
de Obra Mayor
We prepare the architectural project for the new storey and apply for the major building permit.
Step 4
Roof Removal &
Reinforcement
We remove the existing roof and reinforce the foundation and walls where the assessment shows it's needed.
Step 5
Walls, Staircase
& New Roof
We build the walls of the second storey, install the new internal staircase and roof the house again.
Step 6
Facade, Finishing
& Handover
We match the facade of the new storey to the old house, complete finishing and hand over the home.
Request Your Second Storey Quote
Structural assessment before design.
Quality control at every stage.
Quality control at every stage.
One Coordinated Project
What Is Included in a Second Storey Addition
What a Second Storey Addition in Valencia Involves
A second storey addition is not simply "another box on top." It touches the structure of the entire house — from the foundation, which has to carry the new load, to the roof, which has to be rebuilt completely. We manage every stage as one coordinated project.
- ✓ Structural assessment (structural survey)
- ✓ Foundation and load-bearing wall reinforcement where needed
- ✓ Removal of the existing roof
- ✓ New intermediate floor slab (forjado)
- ✓ Load-bearing and internal walls for the second storey
- ✓ New internal staircase
- ✓ Roof reconstruction over the added storey
- ✓ Facade finishing matched to the existing house
- ✓ Electrical and plumbing extended to the second floor
- ✓ Windows and doors for the second storey
- ✓ Interior finishing of the new rooms
- ✓ Final clean and handover
Second Storey Addition in Valencia
Growing Families, Tight
Plots and Investors
Who Need More Space
A second storey addition is most often the right fit for families who have outgrown a single-storey house but whose plot has no room to extend outward, for owners of narrow urban plots in Valencia, Mislata or Torrent where the only direction left to grow is up, and for investors who want to increase the living area of a house before selling or renting it out.
- ✓ Families who need more bedrooms
- ✓ Houses on small plots with no room to extend outward
- ✓ Owners who would rather not sell and move
- ✓ Investors adding rentable floor area
- ✓ Homes with a sound, single-storey structure
- ✓ Anyone wanting a separate floor for children or guests
Plus a Full
Extra Floor
Extra Floor
If the Structure Won't Take It
Another Way to Add Space to Your House
House Extension as an Alternative to a Second Storey
If the structural assessment shows that the existing foundation and walls cannot carry a second storey without extensive and costly reinforcement, extending outward is often the more practical option. A house extension adds rooms at ground level without loading the old structure and without touching the roof of the whole house. If your plot does allow a second storey but the foundation needs strengthening first, foundation construction becomes a required first stage of the project, not an optional extra for later.
- ✓ The foundation isn't rated for a second storey's load
- ✓ Your plot has enough room to extend outward instead
- ✓ You'd rather avoid removing the existing roof
- ✓ Reinforcing the foundation isn't cost-effective
Construction Company Valencia
English-Speaking
Second Storey Team in Valencia
squaremeter Reformas is a construction company in Valencia that manages second storey additions from an honest structural assessment through to the staircase, roof and facade. We explain each stage in plain English, never promise a result before the structural survey is complete, and provide a clear quote before work starts.
- English-speaking team
- Experience with additions and reconstructions in Valencia
- Honest structural assessment before design
- Licencia de obra mayor guidance
- Quality control of structure and finishing
- Work with houses, villas and townhouses
- Help for foreign property owners
💬
English-
speaking team
☎
Clear
communication
📋
Honest structural
assessment
Construction Company
in Valencia
▣
Quality control
at every stage
🏠
Local Valencia
experience
✈
Expat & foreign
owner support
Second storey addition Valencia · structural assessment · English-speaking team
Local & International Clients
Second Storey Addition Builders in Valencia
Second Storey Additions for Local and International Owners
If you are considering a second storey addition to a house in Valencia, Mislata, Paterna, Torrent, Burjassot, Alboraya, Manises, Quart de Poblet, Xirivella or Paiporta, we can help you find out whether it's realistic for your specific house, then manage the project from structural assessment through to move-in. We combine local construction experience with clear English communication for homeowners and expats.
Construction Services in Valencia
Services Often Combined With a Second Storey Addition
A second storey addition touches almost the whole house — explore related services to see what else your project may need.
House Reconstruction & Expansion
A wider reconstruction project when you need more than one new floor.
Roof Waterproofing & Insulation
Waterproofing and insulation for the new roof above your added storey.
Understanding the Cost
Second Storey Addition Valencia Prices
What Affects the Final Cost?
The price of a second storey addition depends on the size of the new floor, the condition of the existing foundation and whether it needs reinforcing, the design of the intermediate floor slab, the complexity of the new staircase, the roof and facade materials, engineering systems and the level of interior finishing.
Addition size
Existing foundation condition
Floor slab construction
Staircase complexity
Roof materials
Facade materials
Engineering systems
Finishing level
Site access
Permit documentation
Clear Process, Local Experience
Why Choose squaremeter Reformas for a Second Storey Addition in Valencia?
Honest Assessment, Careful Structure and Local Experience
- ✓ We manage second storey addition projects turnkey
- ✓ We never promise a result before the structural assessment is complete
- ✓ We handle the licencia de obra mayor application
- ✓ We reinforce foundations and walls only where the assessment shows it's needed
- ✓ We can help English-speaking clients
- ✓ We control the quality of the structure at every stage
- ✓ We provide a clear quote for the agreed scope of work
Local Insight
Licencia de Obra Mayor and the Structural Assessment
Adding a full storey above an existing house is treated differently to most renovation work in Spain — it requires a licencia de obra mayor (major works permit), which calls for a full project signed by an architect, not just a technical description. Before any drawings are made, we commission a structural assessment: the foundation, load-bearing walls and existing floor slab are inspected, and boreholes or concrete testing may be carried out where the condition of the structure isn't clear from a visual survey alone. Only once this is complete can we say with confidence whether the existing structure will carry a second storey as it stands, whether the foundation needs reinforcing first, or whether a different way of adding space makes more sense for your house. Skipping this step is the single biggest risk in a second storey project, so we treat it as the true starting point, not a formality.
Client Reviews
Real Feedback from Our Clients
Read all reviews on Google Maps →
★★★★★
We added a full second floor with two bedrooms and a bathroom. The team was upfront that our foundation needed reinforcing first — not what we wanted to hear, but it clearly paid off.
★★★★★
Living downstairs during the works was manageable once the roof was back on. The new staircase feels like it was always part of the house.
★★★★★
We got a proper structural survey before anything else, which gave us confidence to go ahead. The licencia de obra mayor process was handled entirely by squaremeter Reformas.
Second Storey Addition
FAQ
How do you know if my house can support a second storey?
We never start with the facade design. An architect and structural engineer carry out a structural assessment first: the foundation, load-bearing walls and existing floor slab are inspected, with boreholes or concrete testing where needed. Only after this is complete can we say whether the structure will carry a second storey as it stands, whether the foundation needs reinforcing, or whether another approach makes more sense.
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Can I stay living in the house while the second storey is being built?
It depends on the stage. While the old roof is removed and the second storey structure goes up, the house is usually not liveable — the roof is off and there is dust and equipment throughout. Once the new floor reaches the finishing stage, living downstairs is usually possible with the right protection in place. We talk through this early so you can plan temporary accommodation if needed.
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How long does a second storey addition in Valencia take?
Most projects take from four to eight months from the point the licencia de obra mayor is granted, covering the structural works, staircase, roof, facade and interior finishing. Timing depends heavily on the condition of the existing foundation and whether it needs reinforcing before construction begins.
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What happens to the existing roof?
The existing roof has to be fully removed, since the second storey is built where the old roof space used to be. Once the structure of the new storey is complete, we install a new roof above the added floor, matched in materials and pitch to the rest of the house.
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What determines the cost of a second storey addition?
Cost depends on the size of the addition, the condition of the existing foundation and whether it needs reinforcing, the design of the intermediate floor slab, the complexity of the new staircase, roof and facade materials, engineering systems and the level of interior finishing.
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M2
Start Your Second Storey
Addition in Valencia
Considering a second storey addition in Valencia? Contact squaremeter Reformas and tell us about your house. We will assess the structure honestly, explain what's realistic and prepare a clear quote for your project.