ChamberlainWalker
Spatial Development Strategy Support

From Strategy
to Delivery

Credible, insight-led and high-impact support for Combined Authorities and Strategic Planning Boards — from evidence and spatial strategy through to deliverable growth.

Spatial Development Strategies (SDS) will soon be a statutory requirement across England. The challenge is not producing a strategy, but ensuring they shape Local Plans and drive housing delivery, infrastructure coordination and economic growth — rather than simply reflecting what is already planned.

National Context

The SDS Timeline

National Legislative Milestones
Feb 2026
Consultation on SDS geographies
Government consulted on proposed areas. Closed 26 March 2026.
Summer 2026
Secondary legislation
SDS provisions activated. Legal duty to prepare an SDS formally commences.
2026 to 2028
Strategic Planning Boards established
Governance boards in place. Most areas targeted by April 2028.
By 2029
Full SDS coverage ambition
Government target for universal coverage by end of this Parliament.
Typical SDS Preparation Journey (~2-3 Years from Formal Start)
Stage 1 Initiation & Scoping Stage 2 Issues & Options Stage 3 Draft Publication Stage 4 Examination Stage 5 Adoption & Review Summer 2026 ~12 months Spring–Autumn 2027 ~6 months Winter 2027–28 ~6 months Spring–Winter 2028 ~9 months Spring 2029 ~6+ months

Based on provisional examples from West Midlands and West of England Combined Authorities. Actual timelines vary by area, governance complexity and local factors. Source: PAS SDS Readiness Guide, MHCLG guidance.

Our Approach

Three Areas of Focus

We work across the full SDS cycle — from early readiness through to delivery frameworks — ensuring that strategy, evidence and implementation are fully aligned.

01
SDS Readiness & Mobilisation
Clarifying scope and governance, auditing existing evidence and strategies, and preparing SDS roadmaps, business plans and delivery frameworks.
02
Evidence, Spatial Strategy & Growth Logic
Integrated housing and economic analysis, growth scenarios, infrastructure assessment and site pipeline analysis — evidence designed to inform strategic decisions.
03
Delivery, Investment & Implementation
Housing and infrastructure delivery programmes, barrier analysis, viability, land assembly, Homes England alignment and developer engagement — focused on unlocking delivery.
Recent Experience

Working at Strategic Planning Level

We are currently supporting Combined Authorities across England on work closely aligned to SDS preparation and delivery. Among the most important elements of our value added is ensuring that housing plans align with wider economic priorities — setting the right level of ambition and broad spatial distribution of housing to support long-term growth.

York & North Yorkshire CA
Housing Investment Plan — site identification, prioritisation and detailed assessment of barriers to delivery across a large and diverse geography. Our work included coordinating input and synthesising evidence across multiple authorities within the Combined Authority area.
Cambridgeshire & Peterborough CA
Strategic Place Partnership Business Plan and Delivery Plan with Homes England — establishing governance, delivery mechanisms and coordination across major strategic sites. Our work included developing a prioritised pipeline of strategic development areas and aligning partners around a shared delivery framework.
What Sets Us Apart

A Distinct Perspective

Our SDS work combines planning, analytical, policy and strategic expertise — bringing together senior practitioners and government-trained economists to bridge the gap between strategy and delivery.

Delivery, Not Just Policy
We go beyond plan-making to understand what is required to unlock sites and accelerate development.
Integrated Evidence
Integrated housing, economic and infrastructure evidence to support coherent and deliverable spatial strategies.
Strategic Planning Expertise
Deep understanding of cross-boundary working, institutional governance and programme delivery at strategic planning level.
Bespoke & Tailored
Every commission reflects the specific geography, market conditions and institutional context of the area.
Digital Tools & Data
Government is placing increasing emphasis on digital planning as part of SDS readiness. We support authorities to develop digital-ready evidence bases and spatial data frameworks, helping them get ahead of emerging requirements.
The Team

Who You Will Be Working With

Our team combines senior planning and policy expertise with strong analytical capability, enabling us to support SDS from strategic definition through to delivery.

Paul Chamberlain
Paul Chamberlain
Founding Partner / Director
Senior economist and founding partner with over 20 years’ experience in housing, planning and local growth policy. Former Deputy Director of Analysis at MHCLG, where he played a central role in major national planning and housing reforms.
David Morris
David Morris
Senior Analyst — Planning & Housing
Former Senior Civil Servant at the Department for Transport, the Prime Minister’s Delivery Unit and MHCLG, where he was responsible for Regional and Local plans and local authority planning performance. He also helped establish City Deals and Combined Authorities.
Mario Wolf
Mario Wolf
Senior Associate — Planning & Housing
Senior town planner and former MHCLG policy expert with over 35 years’ experience across regional strategies, the first National Planning Policy Framework and cross-boundary planning. Founding Director of the Right to Build Task Force and Chartered Member of the RTPI.
Get in Touch
Starting your SDS programme?
Get in touch to discuss how we can support.