Urban development decides who can live there
Four linked tasks safeguard that a neighbourhood transition succeeds not only technically but also socially: social cohesion, health, affordable rental housing and flexible use of existing buildings. Together they keep a neighbourhood mixed, healthy and lively.
A neighbourhood that works is mixed, healthy and affordable
Physical interventions only realise their value if the neighbourhood stays socially balanced. The largest task in absolute value is affordable housing, at around €710,000 in neighbourhood value and the target of 35 percent affordable stock. The most favourable ratio sits with health: cleaner air through ventilation returns around €3.27 per euro invested.
To the four tasksSocial cohesion and participation
A communal kitchen, a neighbourhood garden or induction-cooking workshops let residents build new skills and get to know each other better. Per household, around €500 in annual costs stands against roughly €750 in benefits: less vandalism and neglect, and more room to develop talent. For a model neighbourhood of around 2,500 households that adds up to around €580,000 in societal value against €380,000 in costs.
Health, indoors and out
Indoor air quality largely determines health. Mechanical ventilation costs on average between €1,700 and €2,100 per home and returns around €3.27 in cleaner air per euro invested. Outdoors, sports and play areas support a healthy lifestyle, at an investment of around €10,000 per area. As a task, health adds up to around €210,000 in value against €72,000 in costs per model neighbourhood — the most favourable ratio of the four.
Affordable rental housing
Affordable rent brings diversity in residents, shops and provisions, and widens the room to move on. The target is that around 35 percent of homes in a district count as affordable; the Dutch average now sits at 28 percent. Average rent is €1,184, the liberalisation threshold €765, and around €419 per home is needed to deregulate. As a task, at around €710,000 in value against €280,000 in costs, this is the largest in absolute value.
Flexible use of existing buildings
Vacant shops and buildings can serve a temporary function: pop-up shops, circular craft centres or flexible housing keep street fronts lively. Every percentage point less vacancy is worth around €16.70 per m² in housing value, with benefits of €3.74 per €2.75 invested. Less demolition and new build also means fewer raw materials and less CO₂. As a task this adds up to around €46,000 in value against €34,000 in costs per model neighbourhood.
Value and cost per task
The four linked tasks of urban development for a model neighbourhood of around 2,500 households, with the societal value and costs from the Societal Impact Analysis.
| Linked task | Societal value | Cost |
|---|---|---|
| Social cohesion and participation | ±€580,000 | ±€380,000 |
| Health, indoors and out | ±€210,000 | ±€72,000 |
| Affordable rental housing | ±€710,000 | ±€280,000 |
| Flexible use of existing buildings | ±€46,000 | ±€34,000 |
Amounts per model neighbourhood. Affordable rental housing has the largest absolute value; health the most favourable ratio. Source: Societal Impact Analysis, Transform Zuid-Holland.
Linking opportunities with other transitions
The urban tasks connect with the energy and climate tasks. A communal space is at the same time the place for participation around insulation and sustainability; ventilation for healthier air ties into the energy reduction of existing buildings; greenery at sports and play areas cools public space and lets rainwater infiltrate. That way social and physical interventions reinforce each other.
Method and source
The figures come from the Societal Impact Analysis of the Transform approach: a value and cost picture per linked task for a model neighbourhood, built up from cost-benefit analyses and comparable projects. The full method is available at buurttransform.nl (in Dutch).
Frequently asked questions
How does a municipality raise the share of affordable housing in a district?
Realistic is around 7 percent deregulation reversal in an average district (€419 per home), supplemented with housing allowance (on average €173 per month) for low incomes — towards the 35 percent affordable-stock target.
What is the societal value of social cohesion?
Around €500 in annual costs per household stands against roughly €750 in benefits: less vandalism and neglect, and more talent and opportunity.
What to do with vacant shop premises in the neighbourhood?
Temporary functions — pop-up shops, craft centres, flexible housing — keep street fronts lively; every percentage point less vacancy is worth around €16.70 per m² in housing value.
Why does investing in health pay off?
Mechanical ventilation returns around €3.27 in cleaner air per euro invested; healthier residents mean lower illness costs and less absence.
How does urban development strengthen the energy transition?
A communal space is at the same time the place for participation around insulation and sustainability; ventilation for healthier air ties into the energy reduction of existing buildings.
Frequently asked questions about urban development
Social cohesion and participation, health, affordable rental housing and flexible use of existing buildings.
At around €710,000 in societal value against €280,000 in costs per model neighbourhood it is the largest in absolute value of the four tasks.
Average rent is €1,184 and the liberalisation threshold €765; the target is that around 35 percent of homes count as affordable, now 28 percent.
Health, at around €210,000 in societal value against €72,000 in costs per model neighbourhood — the most favourable ratio of the four tasks.
Mechanical ventilation costs on average €1,700 to €2,100 per home; outdoors, a sports or play area costs around €10,000 per area.
Around €46,000 in value against €34,000 in costs per model neighbourhood, with benefits of €3.74 per €2.75 invested and fewer raw materials and less CO₂ through less demolition.
For a model neighbourhood of around 2,500 households, built up from the Societal Impact Analysis.
Around €580,000 in value against €380,000 in costs per model neighbourhood, with less vandalism and neglect and more room to develop talent.
Exploring an integrated neighbourhood approach for a municipality or province? contact@neweconomy.eco — or visit the platform at buurttransform.nl (in Dutch).