Urban structure and the character of development determine how a neighbourhood works in spatial terms: where functions concentrate and how everyday life is organised. Over its history District 18 grew together from several districts of sharply differing character — and this fragmentation still shows through on today's service map.

1. Twenty-three neighbourhoods

Under Budapest's administrative system, Pestszentlőrinc-Pestszentimre has the most official neighbourhoods of any district in the capital: 23 in total. Yet the district's two large territorial units are equal neither in population nor in extent. About 75% of the population lives in Pestszentlőrinc; of the 23 neighbourhoods 16 lie on the Pestszentlőrinc side and only 6 on the Pestszentimre side. The two once-independent settlements are separated by the Halmi Forest.

This historical fragmentation is not merely a cartographic curiosity: the district carries at once the legacy of a larger and a smaller historical settlement, with different centres and different levels of provision. That is precisely why the question of compactness can be answered meaningfully not for the district as a whole, but neighbourhood by neighbourhood.

2. Housing estates, gated developments, terraced houses

In terms of built form the suburban, detached-house fabric clearly dominates, yet five larger housing estates also break up the picture: four in Pestszentlőrinc (Lakatostelep, the Havanna estate, the Szent Lőrinc estate and the Gloriett estate), and one in Pestszentimre (the Krepuska Géza estate). Their population density is higher than the district average, yet none of them lies along one of the district's main axes — so the crowds living there do not feed an urban milieu along the axes.

Closed-row development appears only at isolated points, mainly along the main road axes, alongside scattered newer gated developments and higher-density apartment blocks. Some of the gated developments are fenced off — in the international literature these are called gated communities (Reviczky Liget, for example). The fences, barriers and restricted access break the continuity of the urban fabric, reduce permeability and worsen pedestrian and cycling connections. This is especially problematic in an outer district, where network density is already low.

There is, however, one form of development that fits the principles of the compact city well: the terraced, low-intensity zone. Its density exceeds that of the traditional suburb while preserving the advantages of a human-scale residential environment with garden access. It simultaneously enables higher residential density — which makes maintaining local services more economical — and retains the low building heights and green-surface ratio suited to a peripheral character, reducing the typical conflicts of densification. Such terraced development can be observed, among other places, on the Gloriett estate, around Kétújfalu Street and along Est Street. Alongside the residential areas there are also industrial-economic clusters and clearly identifiable brownfield sites in Pestszentlőrinc, which could be potential target areas for a comprehensive development concept.

3. Education and healthcare: strong base, incomplete top

The distribution of nurseries, kindergartens and primary schools is relatively even, and their network covers the residential areas well. The main exceptions are the newer gated developments and the Krepuska Géza estate, which are under-provided in this respect. The picture for secondary education is quite different: every such school lies inward of the Méta Street axis, largely concentrated in two places — around Thököly Road and on the Havanna estate. Across much of Pestszentlőrinc and the whole of Pestszentimre there is no such institution, which creates a high degree of forced travel.

The distribution of primary healthcare is likewise relatively even, but the concentration points tied to the more densely populated, more central neighbourhoods are clearly identifiable. GP surgeries and pharmacies are typically lined up along the main transport axes and near the housing-estate and institutional centres. In the more loosely built, suburban zones provision is sparser — which is unfavourable for pedestrian accessibility and precisely mirrors the district's low-density, fragmented structure.

4. Culture, recreation, retail

Cultural and religious institutions cluster in the areas closer to the inner city, with smaller pockets in the centre of Pestszentimre and inside Szemeretelep. This concentration limits the spontaneous organisation of local community life and reinforces dependence on the centres. The district has eight museums and galleries, but their size and appeal do not match those of the larger Budapest institutions.

In the recreational offer, the three swimming pools are evenly distributed but lie far from the more populous housing estates and are hard to reach along the main axes. The role of urban parks is heightened in such a suburban district — they are community-organising and identity-forming elements — with a total of 34 urban parks identifiable in a relatively even distribution, though blind spots do occur.

Retail functions closely follow the main routes and sub-centres. It is a peculiarity that the district has no significant hypermarkets or large shopping centres of regional draw. This is favourable from the compact-city standpoint: large-scale, car-oriented units typically weaken the local network and fragment the urban fabric. In the immediate surroundings, however — in Districts 10, 19, 20 and 23, and in Vecsés — several large shopping centres operate, so part of everyday shopping slips outside the district. This increases car use and reduces the chance of stimulating the local economy.

5. Service hubs and the missing self-sufficiency

The overall picture draws out a few marked hubs. The strongest concentration can be observed on the Havanna estate and around Kossuth Lajos Square – Szarvas Csárda Square. The third larger centre is the local core of Pestszentimre, which secures the provision of the smaller historical settlement without forced travel. Further, smaller centres can be identified on the housing estates and at Béke Square.

These clusters function as local sub-centres, but because of their scale and offer they typically have only a district-level or smaller catchment. Several types of service — a cinema or a larger covered event space, for example — are entirely absent or present only to a limited degree. As a result, part of the population turns towards the better-served urban areas: the current structure is unable to ensure full functional self-sufficiency, which increases travel demand and weakens the local centres. There are, however, encouraging developments too, such as the completion of the Lőrinc Ice Rink, which has become a permanent service in the life of the district.