Converting an Old House into an English Center: Practical Lessons for New Investors

Are you preparing to open your first English center, or growing a chain from one or two branches to several? Most investors at this stage make the same choice: lease an old townhouse or villa close to residential areas and renovate it. It is faster than building from scratch, needs less capital, and the location is usually ideal for student enrollment.

But that house was built for one family. Once it becomes a school, it has to serve dozens to hundreds of students per shift, meet education-sector licensing conditions and fire safety rules, and look professional enough for parents to trust. For a new investor without an in-house technical team, this is where unplanned costs appear most often.

TECO has designed and built many house-to-center conversions for major English systems such as Apollo English and VIA. These chains have strict processes and standards. This article shares that experience in a form a new investor can apply right away: from the first day of surveying an old house to the day the center welcomes its first student.

Old townhouse converted into Apollo English Phu My Hung center: existing condition, 3D concept and finished building — From old townhouse to English center: existing condition, 3D concept and finished project – Apollo English Phu My Hung, 108–110 Ha Huy Tap.

Why an old house can’t just be “fitted out”

The most common mistake is treating the project like decorating a home: repaint, buy desks and chairs, hang a sign. In reality, a change of use brings changes in structure, building services, safety and legal requirements.

Criteria	Residential house	English center
Occupants at one time	4–10 people	Dozens to hundreds of students per shift
Stairs and evacuation	Usually one staircase	Evacuation must be planned for large groups, including many young children
Electrical load	A few air conditioners and household appliances	Every classroom has an air conditioner, display and projector running at the same time
Sound	No requirement	Adjacent classrooms need sound insulation
Toilets	1–2 bathrooms	Enough for the number of students, separate for boys and girls
Image	The owner’s taste	The chain’s brand identity
Legal	No operating license required	The Department of Education and Training inspects facilities before granting permission to operate

That is why an English center conversion should go through four clear stages: survey, design, construction, and finishing and handover.

Stage 1: Site survey – half of the project’s success

A good survey tells the investor in advance whether the house can become a center at all, and what it will cost. Ideally, the survey is done before signing a long-term lease.

What TECO checks during a survey

Structure: cracks in walls and beams; floor deflection; leaks in the roof, rooftop and bathrooms. A residential floor carries a different load from a crowded classroom.
Stairs and escape routes: stair width, number of stairs, and whether a second escape route can be added.
Electrical system: existing capacity, condition of cables and distribution boards. Old houses usually need to be completely rewired.
Water supply and drainage: whether it is sufficient for the new toilet areas.
Façade: signage position, visibility from the street, and local advertising sign regulations.
Parking and drop-off area: where parents drop off and pick up, and where student vehicles go.

A very common situation: the wall under the staircase or next to the toilets has been damp for years, with rotten, blackened wall bases hidden behind paint or furniture. Simply repainting brings the damp back within a few months of operation. The correct approach is to chip off the damaged plaster, find and stop the water source, waterproof, and only then re-plaster and finish.

Surveying the façade of a townhouse with a solid iron gate before converting it into Apollo English Pho Quang — Façade survey at Apollo Pho Quang (148–150 Pho Quang): a house with a closed iron gate is opened into a glass frontage with multi-level signage to stand out on the street.

Demolition stage and damp wall base under the staircase revealed during survey — The real surprises are inside: the former commercial space at the start of demolition (left), and a damp wall with rotten base under the staircase that only showed once the finishes were removed (right). Items like these need to be budgeted for from the start.

Legal conditions to check in parallel

Foreign language centers are established under Decree 125/2024/NĐ-CP. For facilities, the center must have enough classrooms and functional rooms such as a director’s office, teachers’ room, toilets, and parking for teachers and students. Classrooms must be well lit, with a minimum area of 1.5 m² per student per shift.

When reviewing the application, the Department of Education and Training inspects the facilities in person. The design must therefore follow these conditions from the start, rather than being checked against them after the work is done.

For fire safety (PCCC), you need to determine whether the converted building falls under fire-safety design appraisal and acceptance, which depends on its scale and number of floors.

TECO’s experience is to include fire safety in the design concept from day one: smoke detectors, emergency lights, exit signs, manual call points and evacuation plans are laid out together with ceilings and partitions. Whether the building requires appraisal and acceptance should be settled before the design is finalized, because it directly affects schedule and cost.

Stage 2: Developing the design

The goal of the design is to fit as many compliant classrooms as possible into the available area while keeping the chain’s brand spirit.

Zoning by floor

Ground floor: reception, enrollment counseling and a waiting area for parents. This is the center’s “sales face”, where parents decide to register.
Upper floors: classrooms, teachers’ room and teaching-material storage.
Principle: classes for younger children go on lower floors, close to escape routes and toilets.

Ground floor plan of Apollo English Ha Huy Tap center — Ground floor plan of the Ha Huy Tap branch: a long counseling counter along the wall, a parents’ waiting area facing the glass frontage, and the experience corner and functional rooms grouped at the back.

Maximizing classrooms in a townhouse

Class size determines room size. At the minimum of 1.5 m² per student, a class of 15 needs at least about 22.5 m² of classroom area. Tube houses often have a dark middle room, which can be solved with glass partitions, a skylight or artificial lighting to standard.

An effective approach is to group support areas such as storage, the teachers’ room and toilets on the darker side, leaving the bright side for classrooms. Also make use of wasted spaces such as under the stairs and corridors for self-study corners and bench seats with shoe storage.

Self-study corner under the staircase and impact-protected wood-clad columns in an English center — Using every square meter of a townhouse: the space under the stairs becomes a self-study corner with computers, and the staircase has safety netting and anti-slip nosing for children (left); old partitions are removed so the ground floor flows through, with wood-clad column bases to resist impact (right).

Sound insulation between classrooms

This is the problem English centers meet most after opening. English classes involve speaking, listening, singing and games. If noise leaks into the next room, the quality of the lesson drops noticeably.

Effective sound insulation needs to treat everything together: partitions, ceilings, doors and technical gaps (air-conditioner pipes, cable trays passing through walls).

Some principles to apply:

Partitions between classrooms run up to the concrete slab above, not stopping at the suspended ceiling level.
Fill the partition with mineral wool and seal all openings where air-conditioner pipes and cable trays pass through.
Use solid wood doors with gaskets; observation glass only where needed.
Do not place two classroom doors directly opposite each other.

Air conditioning, ventilation and lighting

Closed, crowded classrooms easily become stuffy without fresh air. Fresh-air supply must be calculated, not just air conditioners installed.
Lighting must be sufficient for reading and writing without glare on screens and interactive boards.
Calculate the total electrical load when all classrooms operate at the same time.

Bringing a brand identity into any house

Each English system has its own standards for color, materials, signage, furniture and the layout of the reception area. The challenge is that every leased house has a different size and shape, while the brand experience must stay consistent across branches.

For Apollo English, the brand language is light wood tones with blue, wood paneling at wall bases, slogans on walls, an experience corner, a prize display cabinet and a long counseling counter. For VIA English Academy, the brand is expressed through a space theme: a round ceiling printed with an astronaut, LED edge lighting, arched doors and character murals.

What they have in common is that you must agree early with the chain’s branch-development team on which items must follow the standard and which can be adjusted to the floor plan. Clarifying this upfront speeds up design approval and limits changes once construction has started.

Experience corner in the lobby of an English center: 3D concept and the real space — The lobby experience corner: 3D concept and the real project after opening.

Children's classroom in an English center: 3D concept and the finished project — Children’s classroom: 3D concept and the finished result. Wood paneling at wall bases protects against impact, vinyl flooring is soft and easy to clean, and partly frosted glass lets teachers and parents observe from the corridor.

Stage 3: Construction – racing the rent

Every month of delay in opening is another month of rent with no revenue. Schedule is therefore the investor’s top priority, but it must not be traded for quality or safety.

TECO plans the schedule backward from the opening date, fixes mandatory milestones in advance such as fire safety acceptance, signage installation and handover for the center to set up classes, then runs many work items in parallel to shorten total time.

Typical construction sequence

Remove old furniture, partitions and equipment that will not be reused.
Reinforce the structure (if needed) and waterproof the rooftop and toilets.
Install new electrical, plumbing, air-conditioning, network and fire-safety systems.
Build the sound-insulating partitions and ceilings.
Complete floors, painting and cladding.
Install furniture, teaching equipment and signage.
Professional cleaning, inspection and handover.

To save time, furniture and signage are fabricated in the workshop while the rough work is under way, so only installation remains at the end.

Challenges specific to townhouse construction

Narrow site: materials are hard to stage, so deliveries are timed and carried up by stairs.
Neighbors sharing walls: noise, dust and working hours must be controlled; a condition record of neighboring houses is made before work starts.
Hidden problems on demolition: rotten pipes, cracked beams and damp inside walls only appear once the walls are broken open.

For example, large signs on busy streets are installed at night with a crane truck, with barriers and construction warning signs, so traffic and neighboring shops are not affected. Noisy work such as drilling and chiseling is scheduled in suitable time windows to keep good relations with neighbors.

Installing an English center sign at night with a crane truck, and the finished façade — Installing the sign at night with a crane so traffic and neighboring shops are not disrupted (left); the façade being completed in the last days before opening (right).

Construction sequence: demolition, building partitions, rewiring and final painting of an English center — The actual TECO construction sequence: removing the old ceiling and doors, building partitions to divide classrooms, rewiring the whole electrical system, and only then painting in the brand colors.

Stage 4: Finishing and handover

Before handover, TECO inspects against a checklist so the center can welcome students right away:

Child-safe sockets; no sharp edges on furniture and cabinets
Test all air conditioners, lighting and projection equipment running together
Check sound insulation between rooms while classes are in session
Fire alarm system, emergency lights, exit lights and fire extinguishers
Water testing, and checking toilets and rooftop for leaks
Professional cleaning, handover of as-built records and warranty

Project results

Some of the branches TECO converted from townhouses:

Branch	Address	Floor plan features
Apollo English Phu My Hung	108–110 Ha Huy Tap, Tan Hung Ward, Ho Chi Minh City	Two adjoining townhouses, open-plan ground floor
Apollo English Pho Quang	148–150 Pho Quang, Duc Nhuan Ward, Ho Chi Minh City	Two townhouses, closed iron-gate frontage
Apollo English Go Vap	63 Nguyen Thai Son, Ho Chi Minh City	Narrow-frontage, multi-story townhouse
VIA English Academy	Ho Chi Minh City	Townhouse with the ground floor converted into a reception lobby

Lobby of Apollo English Phu My Hung after renovation — Lobby of Apollo English Phu My Hung after completion: the open height of the old house creates an airy space, with carpet zoning the students’ activity area.

Enrollment counseling area with a long counter and achievement display cabinet — Enrollment counseling area: a long counter with several counseling positions, built-in cabinets and shelves displaying achievements in line with the brand identity.

Narrow frontage with multi-level signage, Apollo English Go Vap — For narrow-frontage townhouses, multi-level signage and lighting make the center stand out day and night – Apollo English, 63 Nguyen Thai Son, Go Vap.

VIA English Academy lobby converted from a townhouse ground floor — VIA English Academy lobby: a townhouse ground floor opened into one seamless reception space, with reception desk, waiting area and display cabinets in the brand’s space theme.

VIA English Academy reception desk with a round space-themed ceiling — VIA reception desk: a round ceiling printed with an astronaut, LED edge lighting and a circle-patterned desk top make an impression the moment parents and students walk in. Each chain has its own brand language, and the design must convey it within a townhouse floor plan.

Teen classroom and experience room in an English center — A different room for each age group: the teen classroom uses chairs with attached desks so the layout can change with the activity; the experience room keeps an open floor, low cabinets and interactive screens for movement activities.

Corridor with fire alarm call point, evacuation plan and anti-slip stair nosing — Corridor and escape route: manual call point, evacuation plan and anti-slip nosing on the stairs; classroom doors with vertical vision panels, and bench seats with shoe storage along the corridor.

5 common mistakes when converting a house into an English center yourself

Signing a long lease before a technical survey. By the time you find there aren’t enough escape routes or the structure is weak, it is too late.
Dividing rooms too small to get more classes. A room below 1.5 m² per student will have to be fixed when the Department of Education and Training inspects.
Ignoring sound insulation. It only shows once classes begin, and fixing it then is both costly and disruptive to the timetable.
Not upgrading the electrical system. Turning on all air conditioners at peak hours trips the breaker and overloads the system.
Finishing the interior before planning fire safety. Ceilings and partitions then have to be broken open to run pipes and detectors, delaying the opening.

Conclusion

Converting an old house into an English center is a balance between opening speed, cost, licensing conditions and brand standards. Doing the survey properly saves the investor from the largest repair costs, which usually come from problems that weren’t found early.

For a new investor, the biggest advantage is learning from the experience of large chains without paying for your own mistakes. From its experience delivering many branches for Apollo English and VIA, TECO supports new English centers and expanding chains from before the lease is signed: survey, feasibility assessment, design, construction and help with documentation so the branch opens on schedule.

Contact TECO for a site survey: +84 911 111 929 – teco@tecoarch.com