The Blueprint for LMR Success: A Northern Beaches Townhouse Case Study

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The landscape of residential development in New South Wales is undergoing a massive shift. With the introduction of the State Environmental Planning Policy (Housing) 2021—specifically the Low and Mid-Rise (LMR) Housing reforms—opportunities for medium-density development in traditionally low-density zones have expanded significantly.  

However, unlocking this potential isn't as simple as drawing up plans and submitting them. There is a delicate balancing act between State-level ambitions for increased housing supply and Local Council's desire to preserve established streetscape character.  

Today, we are taking you behind the scenes of a recent development assessment for a LMR project within the Northern Beaches Council area. This case study perfectly illustrates how clever architectural design and a deep understanding of planning legislation can turn a heavily objected development application (DA) into a successful approval.  

The Project Overview

The project involved the demolition of an existing single-storey dwelling to make way for a multi-dwelling housing development comprising five attached townhouses.  

Traditionally, this site was zoned R2 (Low Density Residential), where such a density would typically face insurmountable hurdles. However, because the site was located within a 400-metre walking distance of a designated LMR town centre, the LMR provisions under the Housing SEPP applied.  

This State policy overrides local planning controls, granting a non-discretionary maximum building height of 9.5 metres and a Floor Space Ratio (FSR) of 0.7:1.  

Despite the State policy being on the developer's side, the proposal attracted 41 submissions of objection from local residents, primarily citing concerns over building bulk, local character, and traffic. Here is how those challenges were navigated to achieve an approval.  

Challenge 1: State Policy vs. Local Character

When a State policy allows a 9.5m building height (effectively allowing three storeys), but the local streetscape is entirely made up of one- and two-storey detached houses, friction is inevitable.  

The Architectural Solution: Instead of forcing a monolithic three-storey block onto the site, the built form was strategically articulated. The building was designed to step down with the natural slope of the land. More importantly, the dwellings at the very front and rear of the lot were restricted to two storeys, while only the middle dwellings utilized the three-storey allowance.  

When viewed from the street or the rear adjoining properties, the development appears visually compatible with the established two-storey residential character. It proves that you can achieve LMR yield without destroying the neighborhood's visual amenity.  

Challenge 2: The Parking Paradox

One of the most contentious issues in medium-density development is off-street parking. The Northern Beaches Council's Development Control Plan (DCP) historically demanded 1.5 resident spaces per dwelling plus 1 visitor parking space.  

However, the Housing SEPP introduces a "non-discretionary development standard" requiring only 1 car parking space per dwelling for sites in these transit-oriented LMR areas. By law, if a development meets a non-discretionary standard, the consent authority cannot refuse it on those grounds or demand more onerous requirements.  

The Architectural Solution: The design provided exactly five garage spaces (one for each dwelling). The Council's traffic engineers initially pushed back, requesting an additional on-site visitor parking space. Providing this space would have created a dangerous 46.7-metre reversing maneuver for visitors trying to exit the site.  

By standing firm on the SEPP's non-discretionary standards, the "visitor space" requirement was successfully waived. Instead, that space was cleverly repurposed as an internal vehicle turning bay, allowing all resident vehicles to enter and exit the site in a safe, forward direction.  

Challenge 3: Deep Soil vs. Landscaped Open Space

Local councils love their Landscaped Open Space (LOS) ratios. In this case, the Northern Beaches Council's local DCP required 40% of the site to be LOS. The proposed design only offered 23.71% LOS, which would typically be a red flag.  

However, the State's Tree Canopy Guide (called upon by the Housing SEPP) requires 25% Deep Soil area.  

The Architectural Solution: By focusing on the State's definition of "Deep Soil" rather than the local council's broader definition of LOS, the design achieved over 29% deep soil coverage. Large deep-soil zones were placed at the front setback, the side boundaries, and the rear. By committing to planting advanced native canopy trees in these zones, the design successfully appeased the council's landscape officers and offset the loss of the older, non-exempt trees on the lot.  

Key Takeaways for Your Next Project

The NSW Housing SEPP has opened the door for incredible uplift in LMR areas, but it is not a free pass to ignore good design. To successfully navigate the approval process, developers must:  

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  Know When State Policy Overrides Local Rules: Understand the non-discretionary standards (like parking, FSR, and height) and use them to protect your yield.  

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  Respect the Streetscape: Use articulation, varying heights (like the 2-to-3 storey transition), and varied materials to soften the visual bulk.  

• Prioritize Deep Soil over Paving: Commit to generous deep soil zones and mature canopy trees. It is the fastest way to win over the community and the council.  

  
  

Are you looking to unlock the potential of your property under the LMR reforms? Contact SN Architects today. Our expert team understands how to balance legislative planning pathways with exceptional architectural design to get your project approved and built.

Disclaimer: The information provided in this blog post is for educational and general informational purposes only and does not constitute professional planning, architectural, financial, or legal advice. Planning policies, including the NSW Housing SEPP, are subject to change and interpretation by local authorities. Readers should seek specific professional advice tailored to their individual property and circumstances before commencing any development application or project.