Build up, out or in the backyard

Home Additions in Surrey

Q: Do I need a permit for a home addition in Surrey?

Yes. Every addition needs a City of Surrey building permit,and most need drawings plus a structural engineer's design. The project also has to meet zoning rules for setbacks,height,lot coverage and floor area,and any protected trees on the lot have to be accounted for. We prepare and manage the application with you.

Q: How big an addition can I build on my lot?

That is set by your zoning:how far the house must stay from property lines,how tall it can be,how much of the lot it can cover and the total floor area allowed. Some lots have plenty of room,others very little. We check the numbers for your address at the feasibility stage. If a design goes slightly beyond the rules,a variance may be possible,but it adds time and is not guaranteed.

Q: Is it cheaper to build up or build out?

It depends on the house and lot. Building out needs new foundation and roof,but the rest of the home stays mostly usable. Building up saves yard space and foundation work,but the existing structure often needs reinforcing,the roof comes off and the disruption is greater. We price both where both are possible.

Q: Can my house support a second storey?

Many can,some with reinforcement. A structural engineer checks the footings,foundation walls and framing to see whether they can carry another floor. Where they cannot,footings and walls can often be strengthened,which adds cost but can still be worth it compared with moving.

Q: Can I build a coach house or laneway home on my Surrey lot?

Possibly. It depends on your lot's zoning,size and lane access,plus how water,sewer and power can be connected. BC's housing changes in recent years have expanded what many single-family lots can hold,so older answers may no longer apply. We check the current City of Surrey rules for your specific address.

Q: Can we live at home during an addition?

For most ground-level additions and extensions,yes. The new space is built outside,and the connection to the house is opened near the end. Second-storey additions are different:with the roof off,many families move out for part of the project. We plan the sequence so you know in advance.

Q: Should I build an addition or finish the basement for extra space?

If your basement has good ceiling height and stays dry,finishing the basement usually costs less than an addition. An addition makes more sense when the basement is too low or damp,when you need step-free access for a family member,or when you need more space than the basement offers.

Q: How long does a home addition take?

Plan for design and permits taking several months,and construction taking several more for a typical addition,longer for second storeys and coach houses. Permit timing varies with the City's workload and the complexity of the design. We give you a realistic schedule once the design is set.

Q: How do I start planning an addition?

Use the addition estimate form or call(604)649-5404. Your address and what you need the space for are enough to start. We look at the zoning,visit to see the house and lot,and then outline the options and a budget range.

Room additions, second storeys, extensions, garage-top suites and coach houses, planned around what your lot and zoning allow and built by a team based in Surrey.

Request a free addition estimate Call us: (604) 649-5404

Surrey Additions

More space without leaving the neighbourhood

Many Surrey families love where they live but have outgrown the house. The city has a lot of single-storey ranchers and split-levels from the 1960s and 1970s in areas like Newton, Guildford and Whalley, often on generous lots, as well as newer homes with lanes behind them in places like Clayton. Growing families and multigenerational households are common here, and an addition is often simpler than moving.

What you can build depends as much on the lot and zoning as on the house. Setbacks, height limits, floor area, trees protected under Surrey's bylaw, and the strength of the existing structure all shape the options. We work through those first, so the design you fall in love with is one the City will approve.

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Our home addition services in Surrey

Every addition involves design, structure and permits. The difference is where the new space goes and how it connects to the home you already have.

Room Additions in Surrey

A room addition adds one new room to the house: a bedroom, family room, home office or sunroom, usually at ground level off the back or side. It is the most direct way to gain space when one room is what's missing. The new room is built on its own foundation and tied into the existing roof, heating and electrical so it feels original rather than added on.

Typically involves

Bedrooms, family rooms, offices and sunrooms

New foundation and framing

Roof tie-in and matching exterior finishes

Heating, electrical and windows extended into the new room

A good fit if you need one more room, not a whole new level.

Second Storey Additions in Surrey

Building up adds a full floor without using any more of the yard, which makes it a strong option for the many Surrey ranchers built in the 1960s and 1970s. The existing foundation and walls have to carry the new load, so an engineer checks them first. Because the roof comes off, most families move out for part of the build, and the work is scheduled to keep the house protected from rain.

Typically involves

Engineering review of foundation and walls

Roof removal and weather protection

New floor framing, stairs and roof

Bedrooms, bathrooms and a primary suite upstairs

A good fit if your lot is tight but you need a lot more space.

Home Extensions in Surrey

An extension pushes an existing part of the house outward rather than adding a separate room. The classic example is bumping out the back wall to enlarge a cramped kitchen and create an open kitchen and family area, or extending a bedroom to fit an ensuite. It often pairs with a renovation of the rooms it joins, so the old and new space read as one.

Typically involves

Rear and side bump-outs

Kitchen and family room extensions

Bedroom extensions for an ensuite or closet

Removing exterior walls with engineered beams

A good fit if an existing room is too small and you want it bigger.

Custom Home Additions in Surrey

Larger additions, such as a new wing, a two-storey addition or a combination of new rooms, need a full design process. We work through how you want the house to function, what your lot and zoning allow, and how the addition will look from the street. Drawings, engineering and permit applications come before any construction, so the project is priced and approved before it starts.

Typically involves

Design drawings and 3D-ready plans

Zoning review: setbacks, height and floor area

Coordinating designers, engineers and permits

Multi-room and two-storey additions

A good fit if the project is large or you want it designed from scratch.

Laneway House & Coach House Additions in Surrey

A coach house or laneway home is a separate small dwelling in the backyard, often above or beside a garage, and a popular way to house family or earn rental income. Whether your Surrey lot qualifies depends on its zoning, lot size and lane access, and BC's recent housing changes have widened what many lots can hold. We check current City of Surrey rules for your address before any design work.

Typically involves

Lot eligibility and zoning check

Detached or above-garage designs

Separate services: water, sewer, power

Permits, inspections and occupancy

A good fit if you want a separate home on your lot for family or tenants.

Not sure what your lot will allow?

Share your address and what you need the extra space for. We’ll outline the likely options and a rough budget range, usually the same business day.

Request a free addition estimate

Character & Heritage Home Additions in Surrey

Adding to an older or character home means matching rooflines, windows, trim and siding so the addition respects the original, while bringing the new part up to today's code. Homes listed on Surrey's heritage register can need additional approvals. Older houses also bring surprises in wiring, framing and hazardous materials, so we test and plan for those before construction.

Typically involves

Design that matches the original architecture

Heritage approvals where the home is listed

Hazardous materials testing in older homes

Upgrading the connection between old and new structure

A good fit if your home has character you want to keep.

In-Law Suite & Rear Additions in Surrey

When the basement isn't suitable, a rear addition can create a ground-level suite for a parent or family member with its own bedroom, bathroom, kitchenette and entrance. Being at grade makes step-free access much easier than in a basement. We plan it so it can also work as part of the main house later, or meet the requirements for a separate suite if you want that option.

Typically involves

Ground-level bedroom, bathroom and kitchenette

Step-free entry and accessible layout

Private entrance and sound separation

Option to meet secondary suite requirements

A good fit if a family member needs their own space without stairs.

Garage & Garage-Top Additions in Surrey

The garage is often the easiest place to add space. We build new attached or detached garages, add a bonus room or suite above an existing garage, and convert garages into living space. Rooms next to or above a garage need a gas-tight, fire-rated separation from it, and a converted garage needs insulation, a proper floor over the slab, heating and windows.

Typically involves

New attached and detached garages

Bonus rooms and suites above the garage

Garage conversions to living space

Fire separation between garage and living areas

A good fit if you want to use or build over your garage.

Foundation, Structural & Engineering in Surrey

Every addition rests on decisions made before framing starts: footing size, beam design, how the new structure ties into the old, and whether the soil needs a geotechnical review, which is more likely in some lower-lying parts of Surrey. We coordinate structural engineers and handle foundations, beams and load paths, including reinforcing existing footings when a second storey or major opening needs it.

Typically involves

Structural engineering and drawings

Footings, foundations and grade beams

Beams, posts and load-path upgrades

Geotechnical review where soil conditions require it

A good fit if the project involves new loads, openings or foundation work.

Build up, out or separate?

Option

What you gain

Disruption and deciding factors

Second storey

Most space; no yard lost

Highest disruption; you may need to move out; Height limits and whether the structure can take the load

Rear or side addition

One or two rooms at ground level

Moderate; most of the house stays usable; Setbacks, lot coverage and protected trees

Extension or bump-out

Enlarges a room you already have

Moderate; the connected room is out of use; Setbacks and the wall being removed

Garage-top addition

A room or suite without new foundation area

Low to moderate; Height, fire separation and garage structure

Coach house or laneway home

A separate dwelling

Low for the main house; Lot zoning, size, lane access and servicing

Character & heritage addition

An addition that respects the original architecture

Heritage approvals where the home is listed; matching rooflines, windows, trim and siding

In-law suite or rear addition

Ground-level space for a parent or family member

Step-free entry, private entrance, sound separation and secondary-suite requirements

What a home addition in Surrey costs

Additions are among the larger projects a homeowner takes on, and the budget depends heavily on these factors:

Size of the addition and whether it is one or two storeys

Foundation type, soil conditions and any structural reinforcement

Kitchens and bathrooms, which cost more per square foot than bedrooms

Roof tie-ins and matching existing exterior finishes

Design, engineering, surveys and permit fees

Site access, tree protection and utility connections

Get a budget range for my addition

Zoning and permits for additions in Surrey

For additions, the approval process takes real time and shapes the design, so it belongs at the start of the project, not the end.

Housing rules in BC have changed significantly in the last few years, so we check the current City of Surrey requirements for your specific lot rather than relying on older assumptions.

Check what my lot allows

Every addition needs a City of Surrey building permit, with drawings and usually a structural engineer's design

Zoning sets setbacks, height, lot coverage and floor area; going beyond them can require a variance

Protected trees under Surrey's tree bylaw can limit where you build, and removing one needs a permit

New space must meet current building code, including energy-efficiency requirements

Coach houses and laneway homes depend on lot zoning, size, lane access and servicing

Homes on the heritage register may need additional heritage approvals

A survey of the lot is often needed to confirm property lines and setbacks

How a Surrey home addition gets built

Design and approvals often take as long as construction, so starting early is the best way to hit your move-in date.

Feasibility

We visit, review zoning, lot size, trees and the existing structure, and talk through what you need.

Permits

Applications go to the City of Surrey. Approval time varies, and we keep you updated throughout.

Design and engineering

Drawings are developed with you, and the structural engineer designs foundations, beams and connections.

Build and inspections

Foundation, framing, roof, services and finishes, with City inspections at each stage through to final approval.

Homeowner reviews

Reviews from homeowners we've worked with.

Vancouver homeowners who entrusted us with their biggest investment — and what they had to say afterwards. Every review on this site is verified and linked to a real Google profile.

Delivered our full-home reno on time and on the original quote. No surprise change-orders. The PM texted photos every Friday — best contractor experience we've had in Vancouver.

Sarah K.

Kitsilano - Full-Home

Renovation

We added a legal basement suite to help with the mortgage. They handled every City of Burnaby permit. Tenant-ready in 12 weeks — now rents for $2,300/mo. They paid for themselves.

Mike & Rita G.

Burnaby - Legal

Secondary Suite

Our 1970s ensuite became a spa. Heated floors, walk-in shower, custom vanity. The design studio nailed our vision and the trades were respectful of our home every single day.

Jenny L.

North Vancouver

Bathroom

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Where we work

From Surrey to Vancouver, White Rock and Burnaby.

Total Renovations, a trusted renovation company located in Surrey, proudly works with homeowners across the Lower Mainland, offering comprehensive renovation services designed to enhance the comfort, functionality, and value of their homes.

Additions FAQ

Surrey home addition questions

Permits, lot limits, building up or out, coach houses, living at home and timelines.

Do I need a permit for a home addition in Surrey? j

Yes. Every addition needs a City of Surrey building permit, and most need drawings plus a structural engineer's design. The project also has to meet zoning rules for setbacks, height, lot coverage and floor area, and any protected trees on the lot have to be accounted for. We prepare and manage the application with you.

How big an addition can I build on my lot? i

Is it cheaper to build up or build out? i

Can my house support a second storey? i

Can I build a coach house or laneway home on my Surrey lot? i

Can we live at home during an addition? i

Should I build an addition or finish the basement for extra space? i

How long does a home addition take? i

How do I start planning an addition? i