Building on a Narrow Block: Best Design Approaches for 10m Lots

The Western Sydney land market over the last decade has increasingly carved blocks to narrower frontages, particularly in growth suburbs like Schofields, Marsden Park, Box Hill and Austral. 10 to 12.5 metre frontages are common in new estates. This guide covers how to design a comfortable home on a 10m wide block.

The constraints of a 10m block

Side setbacks vary by council, but typical requirements:

• 0.9m on each side for single storey
• 1.2m on each side for double storey
• Special setbacks for blocks against existing developed properties

So on a 10m wide block with double storey, you have approximately 7.6m of internal building width. After internal wall thickness, you have about 7.2m of usable internal space, side to side.

Double storey is almost always the answer

To deliver 4 bedrooms, 2 to 3 bathrooms and a double garage on a 10m block, double storey is the practical solution. Single storey on a 10m block typically caps at 3 bedrooms, single garage, and feels cramped because all the rooms compete for that limited width.

Double storey lets you stack bedrooms above the garage, freeing the ground floor for open-plan living that uses the full width of the block.

The typical 10m wide double storey layout

Ground floor (front to back):

• Double garage with internal access
• Entry foyer with stairs
• Powder room and study under the stairs
• Wide open-plan kitchen, dining and living
• Sliding doors to alfresco at the back

First floor (front to back):

• Master suite at the front (with walk-in robe and ensuite)
• Stairwell and void
• 3 secondary bedrooms with shared bathroom
• Linen and laundry chute or upstairs laundry

This gives you 200 to 240 sqm of floor area, 4 bedrooms, 2.5 bathrooms and a double garage on a 10m wide block. Footprint is typically 95 to 120 sqm.

Bringing in light

Narrow blocks struggle with side light, because side windows look directly at the neighbour’s house 1 metre away. Solutions:

• Void above the stairs with a skylight, flooding the entry and stair landing with sky light.
• Skylights over wet areas (bathroom, kitchen, butler pantry).
• High-level clerestory windows above pantry or fridge run, capturing sky light without looking at neighbours.
• Light well or courtyard mid-house. A 2m x 3m light court between the dining and the bedrooms creates a cross-ventilation path and brings central light.
• Front and rear full-height glazing. Living rooms span the full block width with glazing front and rear. This is where most narrow-block light comes from.

Parking strategies

The double garage at the front eats most of the front facade on a 10m block. Design moves to soften this:

• Sectional panel-lift door with timber slat finish rather than a roller door reads more architectural.
• Recessed garage (set back 600mm to 1000mm from the main facade line) gives depth and shadow.
• Cantilevered first floor over the garage creates visual interest and shades the door.
• Side-by-side garage rather than tandem works on most 10m blocks if interior wall thickness is managed.

Storage

Narrow blocks need more vertical storage and built-ins than wider blocks. Plan for:

• Built-in joinery in every bedroom
• Linen tower or built-ins under the stairs
• Walk-in pantry rather than a wall pantry, often tucked behind the kitchen
• Cabinetry over the laundry, not just floor cabinets
• Garage storage (overhead racks, side benching)

Without designed-in storage, narrow homes feel cluttered fast because there is less spare floor area for furniture-style storage.

Outdoor space

10m wide blocks rarely have side yards worth using. Concentrate outdoor space at the rear:

• Alfresco under the main roof of the ground floor
• Rear yard with pool option on a deep block
• Decked terrace at the rear of the first floor (master bedroom or upstairs living)
• Front porch large enough for entry seating

Common mistakes on narrow block designs

• Putting bedrooms on the south side of the block. They become dark and damp.
• Locating the kitchen against a side wall with no light source. Use a light well or skylight to compensate.
• Skinny corridors. Narrow homes feel claustrophobic if hallways drop below 1100mm. Aim for 1200mm minimum.
• Tandem garage. Most owners find tandem parking impractical and the second car ends up on the driveway. Side-by-side, even if tight, is more usable.
• Forgetting the bin alcove. Garbage bins kept on display at the front of a narrow block look bad. Build in a bin alcove on the side.