Renovation, extensions and architecture
Structural Alteration Planning in Lagos, Nigeria
Our Structural Alteration Planning in Lagos prepares safe, buildable plans for wall removals, new openings and layout changes, setting out beams, lintels and temporary supports before any demolition begins on site.
Structural Alteration Planning by My Space Design
Removing a wall or cutting a new doorway changes how loads travel through a building. Our Structural Alteration Planning in Lagos makes sure every change to walls, slabs and openings is understood before a hammer touches the blockwork. We identify which walls carry weight from floors and roofs above, then plan the beams, lintels, columns and temporary propping that let the alteration go ahead safely as part of a wider renovation.
Planning starts with a measured survey and an inspection of the existing structure. We trace where floor slabs span, locate columns and ground beams, and check the condition of reinforced concrete and blockwork. Where an alteration affects load bearing elements, we work with a structural engineer to size new members, and we record the proposal in Architectural Drawings and Building Plans that builders on site can follow exactly.
Homeowners in Ipaja, Alimosho and across Lagos come to us when they want an open kitchen, a larger living room, a wider shop front or an added staircase opening. Businesses ask for clear floor plates in offices and restaurants. Careful structural planning protects the building, the people in it and the neighbours next door, and it gives a clear sequence for the construction team to follow during the renovation.

Scope of work
What structural alteration planning involves
Load bearing wall checks
We assess each wall in the proposed change, tracing loads from roof trusses, upper floor slabs and beams down to foundations to confirm which walls carry weight and which act only as partitions.
Openings and lintels
For new doorways, arches, serving hatches and windows, we specify reinforced concrete or steel lintels with correct bearing lengths so the masonry above stays fully supported once the opening is cut.
Beam and column design
When a load bearing wall comes out, we plan a replacement beam with supporting columns or padstones, coordinating sizes and reinforcement details with a structural engineer for the specific span.
Temporary works
We set out the props, needles and shoring that hold the structure while walls are removed, along with the safe order of demolition so the building stays stable at every stage.
Slab and stair openings
Cutting a slab for a new staircase, lift or service riser requires trimming beams and edge reinforcement. We plan the opening size, position and the strengthening needed around all of its edges.
Drawings for builders
Every alteration is recorded in plans, sections and details showing what is removed, what is added and the sequence of work, giving masons and steel fixers clear instructions on site.
Our process
How we plan a structural alteration
- Step 1
Survey and brief
We measure the building, inspect the structure and discuss the layout change you want, from a wider living room to a new staircase or shop opening.
- Step 2
Structural assessment
We identify load paths and affected elements, then work with a structural engineer to confirm what can change and what new supports the alteration needs.
- Step 3
Alteration drawings
We prepare drawings and a method sequence for the structural alteration, and our Construction Cost Estimation service prices the works, temporary props and structural materials involved.
- Step 4
Site guidance
When the work goes ahead, our Building Site Supervision team checks props, reinforcement and concrete pours against the plan before each stage is signed off.
Materials and components
Structural elements in alteration planning
Structural alterations rely on a small set of proven components, each sized for the load it carries. Our plans name the type, size and position of every element, so suppliers deliver the right sections and the construction team installs them in the correct order with suitable bearings and fixings.
- Reinforced concrete beams
- Steel universal beams
- Precast lintels
- Concrete padstones
- Reinforced columns
- Adjustable steel props
- High yield rebar
- Sandcrete blocks
- Structural grout
Where it fits
Alterations we plan in Lagos properties
Kitchens and dining rooms
We plan wall removals that join kitchens to dining areas, sizing the beam that replaces the old wall and the supports at each end.
Duplex staircases
Duplex owners who want a new or relocated staircase need slab openings and trimmer beams, which we plan around the existing upper floor structure.
Offices and shops
Commercial clients in Lagos ask for wider frontages and open floor plates. We plan beams and columns that free up floor space for desks or displays.
Bungalow extensions
Linking an extension to an existing bungalow needs new openings in external walls, and we plan lintels and supports that tie the old and new structure together.
Where to book
Book structural alteration planning in Lagos
Call, message or visit the My Space Design office to discuss your project. The interior construction contractor in Lagos page has our full details and the services page lists everything we do.
My Space Design office
5.0 from 2 Google reviews
Block 318 Flat 2 Abesan housing estate, Ipaja Lagos Alimosho, Lagos, Lagos, 100275
Areas served: Lagos, Nigeria, Lagos Mainland, Nigeria, Lagos Island, Nigeria
Opening hours
| Monday | 8:30 AM to 6:00 PM |
|---|---|
| Tuesday | 8:30 AM to 6:00 PM |
| Wednesday | 8:30 AM to 6:00 PM |
| Thursday | 8:30 AM to 6:00 PM |
| Friday | 8:30 AM to 6:00 PM |
| Saturday | 9:30 AM to 2:00 PM |
| Sunday | Closed |
Questions
Structural Alteration Planning FAQs
Why is Structural Alteration Planning in Lagos needed before removing a wall?
Many Lagos buildings use blockwork walls to carry floor slabs and roofs. Removing one unplanned can cause cracks or collapse. Planning confirms which walls carry loads and sets out the beams, lintels and props required to make the change safely.
How much does structural alteration planning cost?
The cost depends on scope, size and finishes, as well as how many structural elements the change affects. After the survey, My Space Design prepares a cost estimate before work starts, covering planning, engineering input and the construction of the alteration.
Will I need approval drawings for the alteration?
Some structural changes, particularly on commercial buildings and multi storey homes, call for drawings submitted to the relevant authority. Our Building Approval Drawing Preparation service produces these drawings alongside the construction set used by the builders.
Can you carry out the alteration after planning it?
Yes. As a design and build firm, we can take the Structural Alteration Planning in Lagos straight into construction, with our own artisans and site supervisors carrying out the work exactly as the drawings describe.
Related services
More renovation, extensions and architecture services
Open-Plan Space Conversion
Converting closed rooms into open-plan living or working areas for better light and flow.
Room Conversion Construction
Converting existing rooms into new uses such as bedrooms, studies, stores or business spaces.
Building Extension Construction
Design and construction of building extensions to add rooms or expand existing living and working space.
Architectural Design Services
Architectural design for new builds, extensions and renovations, developed around client needs and site conditions.
Talk to us about structural alteration planning
Call or message My Space Design to discuss your space, your vision and your budget. We design it, build it and hand it over finished.
Block 318 Flat 2 Abesan housing estate, Ipaja Lagos Alimosho, Lagos, Lagos, 100275