Sydney Heritage & Terrace House Architects

We love terrace house renovations. In fact, they are one of the most rewarding types of projects we work on, and after more than 25 years of experience, we can confidently say we know these buildings inside out. From complex heritage controls to narrow sites and difficult light conditions, we’ve worked through just about every terrace-house challenge Sydney can present.

Sydney terrace houses are full of character, but they can also be some of the city's most challenging homes to renovate well.

Narrow sites, shared boundaries, limited natural light, heritage controls, overlooking, difficult access and layers of previous alterations all influence what is possible. A terrace renovation therefore requires more than simply adding extra floor area at the rear.

After more than 25 years working with terrace houses across Sydney, there are very few terrace-house conditions we have not encountered.

The best results usually come from understanding the entire house — not just the part being extended.

How do you make a narrow terrace feel larger?

One of the most common misconceptions about terrace house renovations is that more space automatically creates a better house.

Often it doesn't.

A poorly planned extension can make the original house darker, increase circulation distances and create large areas that still do not function particularly well.

Instead, good terrace architecture focuses on proportion, light, sightlines and movement through the house.

Small changes can sometimes have a surprisingly large impact: repositioning a stair, introducing a courtyard, creating a void, borrowing light between levels or improving the visual connection from the front of the house through to the garden.

The objective is to make the whole house feel more generous, not simply make it bigger.

Bringing natural light into a Sydney terrace

Natural light is one of the defining challenges of terrace house design.

Because terraces are typically long and narrow with adjoining buildings on both sides, simply adding large windows at the rear does not necessarily solve the problem. In fact, extending further into the backyard can make the centre of the original house even darker.

Successful terrace renovations often use a combination of strategies.

Courtyards, skylights, roof glazing, voids, carefully positioned stairs and openings between levels can all bring daylight deeper into the plan. Material choices, ceiling heights and the placement of internal walls can also influence how light moves through the building.

These decisions are most effective when they are considered from the beginning rather than added later as a solution to a dark floor plan.

Contemporary additions to traditional terraces

One of the great opportunities in renovating a Sydney terrace is the relationship between the historic street façade and a more contemporary rear addition.

We do not believe that new architecture needs to imitate the original building.

A carefully designed contemporary addition can sit comfortably alongside a Victorian or Federation terrace while giving the home a completely different relationship with light, landscape and outdoor living.

For many clients this means opening the rear of the house to the garden, creating larger kitchen and living spaces, introducing more glazing and improving the connection between inside and outside.

The contrast between old and new can become one of the most compelling parts of the project.

Adding another level

Upper-level additions are another common opportunity in Sydney terrace renovations, particularly where owners need additional bedrooms, bathrooms, a study or a more private parents' area.

However, adding another level is rarely just a question of whether it physically fits.

Heritage controls, streetscape visibility, roof forms, overlooking, solar access and the relationship with adjoining properties can all influence the outcome.

In some areas, an upper addition may need to remain largely concealed from the street. In others, the existing roof form or neighbouring development may create different opportunities.

Understanding these constraints early allows the additional floor area to be designed as an integral part of the house rather than something that feels added on.

Neighbours, boundaries and difficult sites

Terraces are often deceptively complicated buildings.

Shared walls, zero side setbacks, narrow rear access, existing party walls, excavation and the close proximity of neighbours can all affect design and construction.

Privacy and overshadowing are also particularly important where houses are only a few metres apart.

These conditions do not necessarily prevent ambitious architecture, but they do require careful decisions around building form, windows, courtyards, screens and upper-level setbacks.

Our experience across Sydney's established terrace suburbs means we are accustomed to resolving these constraints as part of the design rather than treating them as problems that appear later.

Working with Sydney councils

Many of Sydney's best-known terrace suburbs fall within Heritage Conservation Areas or contain individually listed buildings.

Paddington, Woollahra, Balmain, Birchgrove, Glebe, Surry Hills and parts of North Sydney are just some examples where local planning and heritage controls can have a significant influence on renovations and additions.

Having worked across more than 20 Sydney council areas, we understand how much these requirements can vary.

Our approach is to identify the important planning issues early and develop the architecture with those constraints in mind. This gives clients a clearer understanding of what may be achievable before substantial time is invested in a design direction.

A well-designed terrace renovation should ultimately do two things: respect the qualities that made the original house worth keeping and dramatically improve the way the building works today.